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android / platform / frameworks / base.git / android-cts-8.1_r7 / . / services / core / java / com / android / server / am / ActivityStackSupervisor.java
blob: 795d7dde78a08496f5651a2aba1812289a701340 [file] [log] [blame]
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server.am;
import static android.Manifest.permission.ACTIVITY_EMBEDDING;
import static android.Manifest.permission.INTERNAL_SYSTEM_WINDOW;
import static android.Manifest.permission.START_ANY_ACTIVITY;
import static android.Manifest.permission.START_TASKS_FROM_RECENTS;
import static android.app.ActivityManager.LOCK_TASK_MODE_LOCKED;
import static android.app.ActivityManager.LOCK_TASK_MODE_NONE;
import static android.app.ActivityManager.LOCK_TASK_MODE_PINNED;
import static android.app.ActivityManager.START_TASK_TO_FRONT;
import static android.app.ActivityManager.StackId.DOCKED_STACK_ID;
import static android.app.ActivityManager.StackId.FIRST_DYNAMIC_STACK_ID;
import static android.app.ActivityManager.StackId.FIRST_STATIC_STACK_ID;
import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID;
import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID;
import static android.app.ActivityManager.StackId.HOME_STACK_ID;
import static android.app.ActivityManager.StackId.INVALID_STACK_ID;
import static android.app.ActivityManager.StackId.LAST_STATIC_STACK_ID;
import static android.app.ActivityManager.StackId.PINNED_STACK_ID;
import static android.app.ActivityManager.StackId.RECENTS_STACK_ID;
import static android.app.ITaskStackListener.FORCED_RESIZEABLE_REASON_SECONDARY_DISPLAY;
import static android.app.ITaskStackListener.FORCED_RESIZEABLE_REASON_SPLIT_SCREEN;
import static android.content.pm.PackageManager.PERMISSION_DENIED;
import static android.content.pm.PackageManager.PERMISSION_GRANTED;
import static android.os.Process.SYSTEM_UID;
import static android.os.PowerManager.PARTIAL_WAKE_LOCK;
import static android.os.Trace.TRACE_TAG_ACTIVITY_MANAGER;
import static android.view.Display.DEFAULT_DISPLAY;
import static android.view.Display.FLAG_PRIVATE;
import static android.view.Display.INVALID_DISPLAY;
import static android.view.Display.REMOVE_MODE_DESTROY_CONTENT;
import static android.view.Display.TYPE_VIRTUAL;
import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.ACTION_PICTURE_IN_PICTURE_EXPANDED_TO_FULLSCREEN;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALL;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_FOCUS;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_IDLE;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_LOCKTASK;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PAUSE;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_RECENTS;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_RELEASE;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_STACK;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_STATES;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_SWITCH;
import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_TASKS;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_FOCUS;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_IDLE;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_LOCKTASK;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_PAUSE;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_RECENTS;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_RELEASE;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_STACK;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_STATES;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_SWITCH;
import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_TASKS;
import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM;
import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME;
import static com.android.server.am.ActivityManagerService.ANIMATE;
import static com.android.server.am.ActivityManagerService.FIRST_SUPERVISOR_STACK_MSG;
import static com.android.server.am.ActivityRecord.APPLICATION_ACTIVITY_TYPE;
import static com.android.server.am.ActivityRecord.HOME_ACTIVITY_TYPE;
import static com.android.server.am.ActivityStack.ActivityState.DESTROYED;
import static com.android.server.am.ActivityStack.ActivityState.DESTROYING;
import static com.android.server.am.ActivityStack.ActivityState.INITIALIZING;
import static com.android.server.am.ActivityStack.ActivityState.PAUSED;
import static com.android.server.am.ActivityStack.ActivityState.PAUSING;
import static com.android.server.am.ActivityStack.ActivityState.RESUMED;
import static com.android.server.am.ActivityStack.ActivityState.STOPPED;
import static com.android.server.am.ActivityStack.ActivityState.STOPPING;
import static com.android.server.am.ActivityStack.REMOVE_TASK_MODE_MOVING;
import static com.android.server.am.ActivityStack.STACK_INVISIBLE;
import static com.android.server.am.ActivityStack.STACK_VISIBLE;
import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_DONT_LOCK;
import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_LAUNCHABLE;
import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_LAUNCHABLE_PRIV;
import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_PINNABLE;
import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_WHITELISTED;
import static com.android.server.am.TaskRecord.REPARENT_KEEP_STACK_AT_FRONT;
import static com.android.server.am.TaskRecord.REPARENT_LEAVE_STACK_IN_PLACE;
import static com.android.server.am.TaskRecord.REPARENT_MOVE_STACK_TO_FRONT;
import static com.android.server.wm.AppTransition.TRANSIT_DOCK_TASK_FROM_RECENTS;
import static java.lang.Integer.MAX_VALUE;
import android.Manifest;
import android.annotation.IntDef;
import android.annotation.NonNull;
import android.annotation.UserIdInt;
import android.app.Activity;
import android.app.ActivityManager;
import android.app.ActivityManager.RunningTaskInfo;
import android.app.ActivityManager.StackId;
import android.app.ActivityManager.StackInfo;
import android.app.ActivityManagerInternal.SleepToken;
import android.app.ActivityOptions;
import android.app.AppOpsManager;
import android.app.ProfilerInfo;
import android.app.ResultInfo;
import android.app.StatusBarManager;
import android.app.WaitResult;
import android.app.admin.IDevicePolicyManager;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.pm.UserInfo;
import android.content.res.Configuration;
import android.graphics.Rect;
import android.hardware.display.DisplayManager;
import android.hardware.display.DisplayManager.DisplayListener;
import android.hardware.display.DisplayManagerInternal;
import android.hardware.input.InputManagerInternal;
import android.os.Binder;
import android.os.Bundle;
import android.os.Debug;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.Message;
import android.os.PowerManager;
import android.os.Process;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.os.Trace;
import android.os.UserHandle;
import android.os.UserManager;
import android.os.WorkSource;
import android.provider.MediaStore;
import android.provider.Settings;
import android.provider.Settings.SettingNotFoundException;
import android.service.voice.IVoiceInteractionSession;
import android.util.ArrayMap;
import android.util.ArraySet;
import android.util.EventLog;
import android.util.IntArray;
import android.util.MergedConfiguration;
import android.util.Slog;
import android.util.SparseArray;
import android.util.SparseIntArray;
import android.util.TimeUtils;
import android.view.Display;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.content.ReferrerIntent;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.os.TransferPipe;
import com.android.internal.statusbar.IStatusBarService;
import com.android.internal.util.ArrayUtils;
import com.android.internal.widget.LockPatternUtils;
import com.android.server.LocalServices;
import com.android.server.am.ActivityStack.ActivityState;
import com.android.server.wm.PinnedStackWindowController;
import com.android.server.wm.WindowManagerService;
import java.io.FileDescriptor;
import java.io.IOException;
import java.io.PrintWriter;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
public class ActivityStackSupervisor extends ConfigurationContainer implements DisplayListener {
private static final String TAG = TAG_WITH_CLASS_NAME ? "ActivityStackSupervisor" : TAG_AM;
private static final String TAG_FOCUS = TAG + POSTFIX_FOCUS;
private static final String TAG_IDLE = TAG + POSTFIX_IDLE;
private static final String TAG_LOCKTASK = TAG + POSTFIX_LOCKTASK;
private static final String TAG_PAUSE = TAG + POSTFIX_PAUSE;
private static final String TAG_RECENTS = TAG + POSTFIX_RECENTS;
private static final String TAG_RELEASE = TAG + POSTFIX_RELEASE;
private static final String TAG_STACK = TAG + POSTFIX_STACK;
private static final String TAG_STATES = TAG + POSTFIX_STATES;
private static final String TAG_SWITCH = TAG + POSTFIX_SWITCH;
static final String TAG_TASKS = TAG + POSTFIX_TASKS;
/** How long we wait until giving up on the last activity telling us it is idle. */
static final int IDLE_TIMEOUT = 10 * 1000;
/** How long we can hold the sleep wake lock before giving up. */
static final int SLEEP_TIMEOUT = 5 * 1000;
// How long we can hold the launch wake lock before giving up.
static final int LAUNCH_TIMEOUT = 10 * 1000;
static final int IDLE_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG;
static final int IDLE_NOW_MSG = FIRST_SUPERVISOR_STACK_MSG + 1;
static final int RESUME_TOP_ACTIVITY_MSG = FIRST_SUPERVISOR_STACK_MSG + 2;
static final int SLEEP_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 3;
static final int LAUNCH_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 4;
static final int HANDLE_DISPLAY_ADDED = FIRST_SUPERVISOR_STACK_MSG + 5;
static final int HANDLE_DISPLAY_CHANGED = FIRST_SUPERVISOR_STACK_MSG + 6;
static final int HANDLE_DISPLAY_REMOVED = FIRST_SUPERVISOR_STACK_MSG + 7;
static final int LOCK_TASK_START_MSG = FIRST_SUPERVISOR_STACK_MSG + 9;
static final int LOCK_TASK_END_MSG = FIRST_SUPERVISOR_STACK_MSG + 10;
static final int LAUNCH_TASK_BEHIND_COMPLETE = FIRST_SUPERVISOR_STACK_MSG + 12;
static final int SHOW_LOCK_TASK_ESCAPE_MESSAGE_MSG = FIRST_SUPERVISOR_STACK_MSG + 13;
static final int REPORT_MULTI_WINDOW_MODE_CHANGED_MSG = FIRST_SUPERVISOR_STACK_MSG + 14;
static final int REPORT_PIP_MODE_CHANGED_MSG = FIRST_SUPERVISOR_STACK_MSG + 15;
private static final String VIRTUAL_DISPLAY_BASE_NAME = "ActivityViewVirtualDisplay";
private static final String LOCK_TASK_TAG = "Lock-to-App";
// Used to indicate if an object (e.g. stack) that we are trying to get
// should be created if it doesn't exist already.
static final boolean CREATE_IF_NEEDED = true;
// Used to indicate that windows of activities should be preserved during the resize.
static final boolean PRESERVE_WINDOWS = true;
// Used to indicate if an object (e.g. task) should be moved/created
// at the top of its container (e.g. stack).
static final boolean ON_TOP = true;
// Used to indicate that an objects (e.g. task) removal from its container
// (e.g. stack) is due to it moving to another container.
static final boolean MOVING = true;
// Force the focus to change to the stack we are moving a task to..
static final boolean FORCE_FOCUS = true;
// Don't execute any calls to resume.
static final boolean DEFER_RESUME = true;
// Used to indicate that a task is removed it should also be removed from recents.
static final boolean REMOVE_FROM_RECENTS = true;
// Used to indicate that pausing an activity should occur immediately without waiting for
// the activity callback indicating that it has completed pausing
static final boolean PAUSE_IMMEDIATELY = true;
/**
* The modes which affect which tasks are returned when calling
* {@link ActivityStackSupervisor#anyTaskForIdLocked(int)}.
*/
@Retention(RetentionPolicy.SOURCE)
@IntDef({
MATCH_TASK_IN_STACKS_ONLY,
MATCH_TASK_IN_STACKS_OR_RECENT_TASKS,
MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE
})
public @interface AnyTaskForIdMatchTaskMode {}
// Match only tasks in the current stacks
static final int MATCH_TASK_IN_STACKS_ONLY = 0;
// Match either tasks in the current stacks, or in the recent tasks if not found in the stacks
static final int MATCH_TASK_IN_STACKS_OR_RECENT_TASKS = 1;
// Match either tasks in the current stacks, or in the recent tasks, restoring it to the
// provided stack id
static final int MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE = 2;
// Activity actions an app cannot start if it uses a permission which is not granted.
private static final ArrayMap<String, String> ACTION_TO_RUNTIME_PERMISSION =
new ArrayMap<>();
static {
ACTION_TO_RUNTIME_PERMISSION.put(MediaStore.ACTION_IMAGE_CAPTURE,
Manifest.permission.CAMERA);
ACTION_TO_RUNTIME_PERMISSION.put(MediaStore.ACTION_VIDEO_CAPTURE,
Manifest.permission.CAMERA);
ACTION_TO_RUNTIME_PERMISSION.put(Intent.ACTION_CALL,
Manifest.permission.CALL_PHONE);
}
/** Action restriction: launching the activity is not restricted. */
private static final int ACTIVITY_RESTRICTION_NONE = 0;
/** Action restriction: launching the activity is restricted by a permission. */
private static final int ACTIVITY_RESTRICTION_PERMISSION = 1;
/** Action restriction: launching the activity is restricted by an app op. */
private static final int ACTIVITY_RESTRICTION_APPOP = 2;
/** Status Bar Service **/
private IBinder mToken = new Binder();
private IStatusBarService mStatusBarService;
private IDevicePolicyManager mDevicePolicyManager;
// For debugging to make sure the caller when acquiring/releasing our
// wake lock is the system process.
static final boolean VALIDATE_WAKE_LOCK_CALLER = false;
/** The number of distinct task ids that can be assigned to the tasks of a single user */
private static final int MAX_TASK_IDS_PER_USER = UserHandle.PER_USER_RANGE;
final ActivityManagerService mService;
private RecentTasks mRecentTasks;
final ActivityStackSupervisorHandler mHandler;
/** Short cut */
WindowManagerService mWindowManager;
DisplayManager mDisplayManager;
/** Counter for next free stack ID to use for dynamic activity stacks. */
private int mNextFreeStackId = FIRST_DYNAMIC_STACK_ID;
/**
* Maps the task identifier that activities are currently being started in to the userId of the
* task. Each time a new task is created, the entry for the userId of the task is incremented
*/
private final SparseIntArray mCurTaskIdForUser = new SparseIntArray(20);
/** The current user */
int mCurrentUser;
/** The stack containing the launcher app. Assumed to always be attached to
* Display.DEFAULT_DISPLAY. */
ActivityStack mHomeStack;
/** The stack currently receiving input or launching the next activity. */
ActivityStack mFocusedStack;
/** If this is the same as mFocusedStack then the activity on the top of the focused stack has
* been resumed. If stacks are changing position this will hold the old stack until the new
* stack becomes resumed after which it will be set to mFocusedStack. */
private ActivityStack mLastFocusedStack;
/** List of activities that are waiting for a new activity to become visible before completing
* whatever operation they are supposed to do. */
// TODO: Remove mActivitiesWaitingForVisibleActivity list and just remove activity from
// mStoppingActivities when something else comes up.
final ArrayList<ActivityRecord> mActivitiesWaitingForVisibleActivity = new ArrayList<>();
/** List of processes waiting to find out when a specific activity becomes visible. */
private final ArrayList<WaitInfo> mWaitingForActivityVisible = new ArrayList<>();
/** List of processes waiting to find out about the next launched activity. */
final ArrayList<WaitResult> mWaitingActivityLaunched = new ArrayList<>();
/** List of activities that are ready to be stopped, but waiting for the next activity to
* settle down before doing so. */
final ArrayList<ActivityRecord> mStoppingActivities = new ArrayList<>();
/** List of activities that are ready to be finished, but waiting for the previous activity to
* settle down before doing so. It contains ActivityRecord objects. */
final ArrayList<ActivityRecord> mFinishingActivities = new ArrayList<>();
/** List of activities that are in the process of going to sleep. */
final ArrayList<ActivityRecord> mGoingToSleepActivities = new ArrayList<>();
/** List of activities whose multi-window mode changed that we need to report to the
* application */
final ArrayList<ActivityRecord> mMultiWindowModeChangedActivities = new ArrayList<>();
/** List of activities whose picture-in-picture mode changed that we need to report to the
* application */
final ArrayList<ActivityRecord> mPipModeChangedActivities = new ArrayList<>();
/** The target stack bounds for the picture-in-picture mode changed that we need to report to
* the application */
Rect mPipModeChangedTargetStackBounds;
/** Used on user changes */
final ArrayList<UserState> mStartingUsers = new ArrayList<>();
/** Set to indicate whether to issue an onUserLeaving callback when a newly launched activity
* is being brought in front of us. */
boolean mUserLeaving = false;
/**
* We don't want to allow the device to go to sleep while in the process
* of launching an activity. This is primarily to allow alarm intent
* receivers to launch an activity and get that to run before the device
* goes back to sleep.
*/
PowerManager.WakeLock mLaunchingActivity;
/**
* Set when the system is going to sleep, until we have
* successfully paused the current activity and released our wake lock.
* At that point the system is allowed to actually sleep.
*/
PowerManager.WakeLock mGoingToSleep;
/**
* A list of tokens that cause the top activity to be put to sleep.
* They are used by components that may hide and block interaction with underlying
* activities.
*/
final ArrayList<SleepToken> mSleepTokens = new ArrayList<SleepToken>();
/** Stack id of the front stack when user switched, indexed by userId. */
SparseIntArray mUserStackInFront = new SparseIntArray(2);
// TODO: Add listener for removal of references.
/** Mapping from (ActivityStack/TaskStack).mStackId to their current state */
SparseArray<ActivityStack> mStacks = new SparseArray<>();
// TODO: There should be an ActivityDisplayController coordinating am/wm interaction.
/** Mapping from displayId to display current state */
private final SparseArray<ActivityDisplay> mActivityDisplays = new SparseArray<>();
private final SparseArray<IntArray> mDisplayAccessUIDs = new SparseArray<>();
private DisplayManagerInternal mDisplayManagerInternal;
private InputManagerInternal mInputManagerInternal;
/** The chain of tasks in lockTask mode. The current frontmost task is at the top, and tasks
* may be finished until there is only one entry left. If this is empty the system is not
* in lockTask mode. */
ArrayList<TaskRecord> mLockTaskModeTasks = new ArrayList<>();
/** Store the current lock task mode. Possible values:
* {@link ActivityManager#LOCK_TASK_MODE_NONE}, {@link ActivityManager#LOCK_TASK_MODE_LOCKED},
* {@link ActivityManager#LOCK_TASK_MODE_PINNED}
*/
private int mLockTaskModeState;
/**
* Notifies the user when entering/exiting lock-task.
*/
private LockTaskNotify mLockTaskNotify;
/** Used to keep resumeTopActivityUncheckedLocked() from being entered recursively */
boolean inResumeTopActivity;
/**
* Temporary rect used during docked stack resize calculation so we don't need to create a new
* object each time.
*/
private final Rect tempRect = new Rect();
// The default minimal size that will be used if the activity doesn't specify its minimal size.
// It will be calculated when the default display gets added.
int mDefaultMinSizeOfResizeableTask = -1;
// Whether tasks have moved and we need to rank the tasks before next OOM scoring
private boolean mTaskLayersChanged = true;
final ActivityMetricsLogger mActivityMetricsLogger;
private final ArrayList<ActivityRecord> mTmpActivityList = new ArrayList<>();
@Override
protected int getChildCount() {
return mActivityDisplays.size();
}
@Override
protected ActivityDisplay getChildAt(int index) {
return mActivityDisplays.valueAt(index);
}
@Override
protected ConfigurationContainer getParent() {
return null;
}
Configuration getDisplayOverrideConfiguration(int displayId) {
final ActivityDisplay activityDisplay = getActivityDisplayOrCreateLocked(displayId);
if (activityDisplay == null) {
throw new IllegalArgumentException("No display found with id: " + displayId);
}
return activityDisplay.getOverrideConfiguration();
}
void setDisplayOverrideConfiguration(Configuration overrideConfiguration, int displayId) {
final ActivityDisplay activityDisplay = getActivityDisplayOrCreateLocked(displayId);
if (activityDisplay == null) {
throw new IllegalArgumentException("No display found with id: " + displayId);
}
activityDisplay.onOverrideConfigurationChanged(overrideConfiguration);
}
/** Check if placing task or activity on specified display is allowed. */
boolean canPlaceEntityOnDisplay(int displayId, boolean resizeable, int callingPid,
int callingUid, ActivityInfo activityInfo) {
if (displayId == DEFAULT_DISPLAY) {
// No restrictions for the default display.
return true;
}
if (!mService.mSupportsMultiDisplay) {
// Can't launch on secondary displays if feature is not supported.
return false;
}
if (!resizeable && !displayConfigMatchesGlobal(displayId)) {
// Can't apply wrong configuration to non-resizeable activities.
return false;
}
if (!isCallerAllowedToLaunchOnDisplay(callingPid, callingUid, displayId, activityInfo)) {
// Can't place activities to a display that has restricted launch rules.
// In this case the request should be made by explicitly adding target display id and
// by caller with corresponding permissions. See #isCallerAllowedToLaunchOnDisplay().
return false;
}
return true;
}
/**
* Check if configuration of specified display matches current global config.
* Used to check if we can put a non-resizeable activity on a secondary display and it will get
* the same config as on the default display.
* @param displayId Id of the display to check.
* @return {@code true} if configuration matches.
*/
private boolean displayConfigMatchesGlobal(int displayId) {
if (displayId == DEFAULT_DISPLAY) {
return true;
}
if (displayId == INVALID_DISPLAY) {
return false;
}
final ActivityDisplay targetDisplay = getActivityDisplayOrCreateLocked(displayId);
if (targetDisplay == null) {
throw new IllegalArgumentException("No display found with id: " + displayId);
}
return getConfiguration().equals(targetDisplay.getConfiguration());
}
static class FindTaskResult {
ActivityRecord r;
boolean matchedByRootAffinity;
}
private final FindTaskResult mTmpFindTaskResult = new FindTaskResult();
/**
* Temp storage for display ids sorted in focus order.
* Maps position to id. Using {@link SparseIntArray} instead of {@link ArrayList} because
* it's more efficient, as the number of displays is usually small.
*/
private SparseIntArray mTmpOrderedDisplayIds = new SparseIntArray();
/**
* Used to keep track whether app visibilities got changed since the last pause. Useful to
* determine whether to invoke the task stack change listener after pausing.
*/
boolean mAppVisibilitiesChangedSinceLastPause;
/**
* Set of tasks that are in resizing mode during an app transition to fill the "void".
*/
private final ArraySet<Integer> mResizingTasksDuringAnimation = new ArraySet<>();
/**
* If set to {@code false} all calls to resize the docked stack {@link #resizeDockedStackLocked}
* will be ignored. Useful for the case where the caller is handling resizing of other stack and
* moving tasks around and doesn't want dock stack to be resized due to an automatic trigger
* like the docked stack going empty.
*/
private boolean mAllowDockedStackResize = true;
/**
* Is dock currently minimized.
*/
boolean mIsDockMinimized;
final KeyguardController mKeyguardController;
private PowerManager mPowerManager;
private int mDeferResumeCount;
/**
* Description of a request to start a new activity, which has been held
* due to app switches being disabled.
*/
static class PendingActivityLaunch {
final ActivityRecord r;
final ActivityRecord sourceRecord;
final int startFlags;
final ActivityStack stack;
final ProcessRecord callerApp;
PendingActivityLaunch(ActivityRecord _r, ActivityRecord _sourceRecord,
int _startFlags, ActivityStack _stack, ProcessRecord _callerApp) {
r = _r;
sourceRecord = _sourceRecord;
startFlags = _startFlags;
stack = _stack;
callerApp = _callerApp;
}
void sendErrorResult(String message) {
try {
if (callerApp.thread != null) {
callerApp.thread.scheduleCrash(message);
}
} catch (RemoteException e) {
Slog.e(TAG, "Exception scheduling crash of failed "
+ "activity launcher sourceRecord=" + sourceRecord, e);
}
}
}
public ActivityStackSupervisor(ActivityManagerService service, Looper looper) {
mService = service;
mHandler = new ActivityStackSupervisorHandler(looper);
mActivityMetricsLogger = new ActivityMetricsLogger(this, mService.mContext, looper);
mKeyguardController = new KeyguardController(service, this);
}
void setRecentTasks(RecentTasks recentTasks) {
mRecentTasks = recentTasks;
}
/**
* At the time when the constructor runs, the power manager has not yet been
* initialized. So we initialize our wakelocks afterwards.
*/
void initPowerManagement() {
mPowerManager = (PowerManager)mService.mContext.getSystemService(Context.POWER_SERVICE);
mGoingToSleep = mPowerManager
.newWakeLock(PARTIAL_WAKE_LOCK, "ActivityManager-Sleep");
mLaunchingActivity = mPowerManager.newWakeLock(PARTIAL_WAKE_LOCK, "*launch*");
mLaunchingActivity.setReferenceCounted(false);
}
// This function returns a IStatusBarService. The value is from ServiceManager.
// getService and is cached.
private IStatusBarService getStatusBarService() {
synchronized (mService) {
if (mStatusBarService == null) {
mStatusBarService = IStatusBarService.Stub.asInterface(
ServiceManager.checkService(Context.STATUS_BAR_SERVICE));
if (mStatusBarService == null) {
Slog.w("StatusBarManager", "warning: no STATUS_BAR_SERVICE");
}
}
return mStatusBarService;
}
}
private IDevicePolicyManager getDevicePolicyManager() {
synchronized (mService) {
if (mDevicePolicyManager == null) {
mDevicePolicyManager = IDevicePolicyManager.Stub.asInterface(
ServiceManager.checkService(Context.DEVICE_POLICY_SERVICE));
if (mDevicePolicyManager == null) {
Slog.w(TAG, "warning: no DEVICE_POLICY_SERVICE");
}
}
return mDevicePolicyManager;
}
}
void setWindowManager(WindowManagerService wm) {
synchronized (mService) {
mWindowManager = wm;
mKeyguardController.setWindowManager(wm);
mDisplayManager =
(DisplayManager)mService.mContext.getSystemService(Context.DISPLAY_SERVICE);
mDisplayManager.registerDisplayListener(this, null);
mDisplayManagerInternal = LocalServices.getService(DisplayManagerInternal.class);
Display[] displays = mDisplayManager.getDisplays();
for (int displayNdx = displays.length - 1; displayNdx >= 0; --displayNdx) {
final int displayId = displays[displayNdx].getDisplayId();
ActivityDisplay activityDisplay = new ActivityDisplay(displayId);
if (activityDisplay.mDisplay == null) {
throw new IllegalStateException("Default Display does not exist");
}
mActivityDisplays.put(displayId, activityDisplay);
calculateDefaultMinimalSizeOfResizeableTasks(activityDisplay);
}
mHomeStack = mFocusedStack = mLastFocusedStack =
getStack(HOME_STACK_ID, CREATE_IF_NEEDED, ON_TOP);
mInputManagerInternal = LocalServices.getService(InputManagerInternal.class);
}
}
ActivityStack getFocusedStack() {
return mFocusedStack;
}
ActivityStack getLastStack() {
return mLastFocusedStack;
}
boolean isFocusedStack(ActivityStack stack) {
return stack != null && stack == mFocusedStack;
}
/** The top most stack on its display. */
boolean isFrontStackOnDisplay(ActivityStack stack) {
return isFrontOfStackList(stack, stack.getDisplay().mStacks);
}
private boolean isFrontOfStackList(ActivityStack stack, List<ActivityStack> stackList) {
return stack == stackList.get((stackList.size() - 1));
}
/** NOTE: Should only be called from {@link ActivityStack#moveToFront} */
void setFocusStackUnchecked(String reason, ActivityStack focusCandidate) {
if (!focusCandidate.isFocusable()) {
// The focus candidate isn't focusable. Move focus to the top stack that is focusable.
focusCandidate = getNextFocusableStackLocked(focusCandidate);
}
if (focusCandidate != mFocusedStack) {
mLastFocusedStack = mFocusedStack;
mFocusedStack = focusCandidate;
EventLogTags.writeAmFocusedStack(
mCurrentUser, mFocusedStack == null ? -1 : mFocusedStack.getStackId(),
mLastFocusedStack == null ? -1 : mLastFocusedStack.getStackId(), reason);
}
final ActivityRecord r = topRunningActivityLocked();
if (mService.mBooting || !mService.mBooted) {
if (r != null && r.idle) {
checkFinishBootingLocked();
}
}
}
void moveHomeStackToFront(String reason) {
mHomeStack.moveToFront(reason);
}
void moveRecentsStackToFront(String reason) {
final ActivityStack recentsStack = getStack(RECENTS_STACK_ID);
if (recentsStack != null) {
recentsStack.moveToFront(reason);
}
}
/** Returns true if the focus activity was adjusted to the home stack top activity. */
boolean moveHomeStackTaskToTop(String reason) {
mHomeStack.moveHomeStackTaskToTop();
final ActivityRecord top = getHomeActivity();
if (top == null) {
return false;
}
moveFocusableActivityStackToFrontLocked(top, reason);
return true;
}
boolean resumeHomeStackTask(ActivityRecord prev, String reason) {
if (!mService.mBooting && !mService.mBooted) {
// Not ready yet!
return false;
}
if (prev != null) {
prev.getTask().setTaskToReturnTo(APPLICATION_ACTIVITY_TYPE);
}
mHomeStack.moveHomeStackTaskToTop();
ActivityRecord r = getHomeActivity();
final String myReason = reason + " resumeHomeStackTask";
// Only resume home activity if isn't finishing.
if (r != null && !r.finishing) {
moveFocusableActivityStackToFrontLocked(r, myReason);
return resumeFocusedStackTopActivityLocked(mHomeStack, prev, null);
}
return mService.startHomeActivityLocked(mCurrentUser, myReason);
}
TaskRecord anyTaskForIdLocked(int id) {
return anyTaskForIdLocked(id, MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE,
INVALID_STACK_ID);
}
/**
* Returns a {@link TaskRecord} for the input id if available. {@code null} otherwise.
* @param id Id of the task we would like returned.
* @param matchMode The mode to match the given task id in.
* @param stackId The stack to restore the task to (default launch stack will be used if
* stackId is {@link android.app.ActivityManager.StackId#INVALID_STACK_ID}). Only
* valid if the matchMode is
* {@link #MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE}.
*/
TaskRecord anyTaskForIdLocked(int id, @AnyTaskForIdMatchTaskMode int matchMode, int stackId) {
// If there is a stack id set, ensure that we are attempting to actually restore a task
if (matchMode != MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE &&
stackId != INVALID_STACK_ID) {
throw new IllegalArgumentException("Should not specify stackId for non-restore lookup");
}
int numDisplays = mActivityDisplays.size();
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
ActivityStack stack = stacks.get(stackNdx);
final TaskRecord task = stack.taskForIdLocked(id);
if (task != null) {
return task;
}
}
}
// If we are matching stack tasks only, return now
if (matchMode == MATCH_TASK_IN_STACKS_ONLY) {
return null;
}
// Otherwise, check the recent tasks and return if we find it there and we are not restoring
// the task from recents
if (DEBUG_RECENTS) Slog.v(TAG_RECENTS, "Looking for task id=" + id + " in recents");
final TaskRecord task = mRecentTasks.taskForIdLocked(id);
if (task == null) {
if (DEBUG_RECENTS) {
Slog.d(TAG_RECENTS, "\tDidn't find task id=" + id + " in recents");
}
return null;
}
if (matchMode == MATCH_TASK_IN_STACKS_OR_RECENT_TASKS) {
return task;
}
// Implicitly, this case is MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE
if (!restoreRecentTaskLocked(task, stackId)) {
if (DEBUG_RECENTS) Slog.w(TAG_RECENTS,
"Couldn't restore task id=" + id + " found in recents");
return null;
}
if (DEBUG_RECENTS) Slog.w(TAG_RECENTS, "Restored task id=" + id + " from in recents");
return task;
}
ActivityRecord isInAnyStackLocked(IBinder token) {
int numDisplays = mActivityDisplays.size();
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityRecord r = stacks.get(stackNdx).isInStackLocked(token);
if (r != null) {
return r;
}
}
}
return null;
}
/**
* Detects whether we should show a lock screen in front of this task for a locked user.
* <p>
* We'll do this if either of the following holds:
* <ul>
* <li>The top activity explicitly belongs to {@param userId}.</li>
* <li>The top activity returns a result to an activity belonging to {@param userId}.</li>
* </ul>
*
* @return {@code true} if the top activity looks like it belongs to {@param userId}.
*/
private boolean taskTopActivityIsUser(TaskRecord task, @UserIdInt int userId) {
// To handle the case that work app is in the task but just is not the top one.
final ActivityRecord activityRecord = task.getTopActivity();
final ActivityRecord resultTo = (activityRecord != null ? activityRecord.resultTo : null);
return (activityRecord != null && activityRecord.userId == userId)
|| (resultTo != null && resultTo.userId == userId);
}
/**
* Find all visible task stacks containing {@param userId} and intercept them with an activity
* to block out the contents and possibly start a credential-confirming intent.
*
* @param userId user handle for the locked managed profile.
*/
void lockAllProfileTasks(@UserIdInt int userId) {
mWindowManager.deferSurfaceLayout();
try {
final List<ActivityStack> stacks = getStacks();
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; stackNdx--) {
final List<TaskRecord> tasks = stacks.get(stackNdx).getAllTasks();
for (int taskNdx = tasks.size() - 1; taskNdx >= 0; taskNdx--) {
final TaskRecord task = tasks.get(taskNdx);
// Check the task for a top activity belonging to userId, or returning a result
// to an activity belonging to userId. Example case: a document picker for
// personal files, opened by a work app, should still get locked.
if (taskTopActivityIsUser(task, userId)) {
mService.mTaskChangeNotificationController.notifyTaskProfileLocked(
task.taskId, userId);
}
}
}
} finally {
mWindowManager.continueSurfaceLayout();
}
}
void setNextTaskIdForUserLocked(int taskId, int userId) {
final int currentTaskId = mCurTaskIdForUser.get(userId, -1);
if (taskId > currentTaskId) {
mCurTaskIdForUser.put(userId, taskId);
}
}
static int nextTaskIdForUser(int taskId, int userId) {
int nextTaskId = taskId + 1;
if (nextTaskId == (userId + 1) * MAX_TASK_IDS_PER_USER) {
// Wrap around as there will be smaller task ids that are available now.
nextTaskId -= MAX_TASK_IDS_PER_USER;
}
return nextTaskId;
}
int getNextTaskIdForUserLocked(int userId) {
final int currentTaskId = mCurTaskIdForUser.get(userId, userId * MAX_TASK_IDS_PER_USER);
// for a userId u, a taskId can only be in the range
// [u*MAX_TASK_IDS_PER_USER, (u+1)*MAX_TASK_IDS_PER_USER-1], so if MAX_TASK_IDS_PER_USER
// was 10, user 0 could only have taskIds 0 to 9, user 1: 10 to 19, user 2: 20 to 29, so on.
int candidateTaskId = nextTaskIdForUser(currentTaskId, userId);
while (mRecentTasks.taskIdTakenForUserLocked(candidateTaskId, userId)
|| anyTaskForIdLocked(candidateTaskId, MATCH_TASK_IN_STACKS_OR_RECENT_TASKS,
INVALID_STACK_ID) != null) {
candidateTaskId = nextTaskIdForUser(candidateTaskId, userId);
if (candidateTaskId == currentTaskId) {
// Something wrong!
// All MAX_TASK_IDS_PER_USER task ids are taken up by running tasks for this user
throw new IllegalStateException("Cannot get an available task id."
+ " Reached limit of " + MAX_TASK_IDS_PER_USER
+ " running tasks per user.");
}
}
mCurTaskIdForUser.put(userId, candidateTaskId);
return candidateTaskId;
}
ActivityRecord getResumedActivityLocked() {
ActivityStack stack = mFocusedStack;
if (stack == null) {
return null;
}
ActivityRecord resumedActivity = stack.mResumedActivity;
if (resumedActivity == null || resumedActivity.app == null) {
resumedActivity = stack.mPausingActivity;
if (resumedActivity == null || resumedActivity.app == null) {
resumedActivity = stack.topRunningActivityLocked();
}
}
return resumedActivity;
}
boolean attachApplicationLocked(ProcessRecord app) throws RemoteException {
final String processName = app.processName;
boolean didSomething = false;
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
if (!isFocusedStack(stack)) {
continue;
}
stack.getAllRunningVisibleActivitiesLocked(mTmpActivityList);
final ActivityRecord top = stack.topRunningActivityLocked();
final int size = mTmpActivityList.size();
for (int i = 0; i < size; i++) {
final ActivityRecord activity = mTmpActivityList.get(i);
if (activity.app == null && app.uid == activity.info.applicationInfo.uid
&& processName.equals(activity.processName)) {
try {
if (realStartActivityLocked(activity, app,
top == activity /* andResume */, true /* checkConfig */)) {
didSomething = true;
}
} catch (RemoteException e) {
Slog.w(TAG, "Exception in new application when starting activity "
+ top.intent.getComponent().flattenToShortString(), e);
throw e;
}
}
}
}
}
if (!didSomething) {
ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
}
return didSomething;
}
boolean allResumedActivitiesIdle() {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
if (!isFocusedStack(stack) || stack.numActivities() == 0) {
continue;
}
final ActivityRecord resumedActivity = stack.mResumedActivity;
if (resumedActivity == null || !resumedActivity.idle) {
if (DEBUG_STATES) Slog.d(TAG_STATES, "allResumedActivitiesIdle: stack="
+ stack.mStackId + " " + resumedActivity + " not idle");
return false;
}
}
}
// Send launch end powerhint when idle
mService.mActivityStarter.sendPowerHintForLaunchEndIfNeeded();
return true;
}
boolean allResumedActivitiesComplete() {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
if (isFocusedStack(stack)) {
final ActivityRecord r = stack.mResumedActivity;
if (r != null && r.state != RESUMED) {
return false;
}
}
}
}
// TODO: Not sure if this should check if all Paused are complete too.
if (DEBUG_STACK) Slog.d(TAG_STACK,
"allResumedActivitiesComplete: mLastFocusedStack changing from=" +
mLastFocusedStack + " to=" + mFocusedStack);
mLastFocusedStack = mFocusedStack;
return true;
}
boolean allResumedActivitiesVisible() {
boolean foundResumed = false;
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
final ActivityRecord r = stack.mResumedActivity;
if (r != null) {
if (!r.nowVisible || mActivitiesWaitingForVisibleActivity.contains(r)) {
return false;
}
foundResumed = true;
}
}
}
return foundResumed;
}
/**
* Pause all activities in either all of the stacks or just the back stacks.
* @param userLeaving Passed to pauseActivity() to indicate whether to call onUserLeaving().
* @param resuming The resuming activity.
* @param dontWait The resuming activity isn't going to wait for all activities to be paused
* before resuming.
* @return true if any activity was paused as a result of this call.
*/
boolean pauseBackStacks(boolean userLeaving, ActivityRecord resuming, boolean dontWait) {
boolean someActivityPaused = false;
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
if (!isFocusedStack(stack) && stack.mResumedActivity != null) {
if (DEBUG_STATES) Slog.d(TAG_STATES, "pauseBackStacks: stack=" + stack +
" mResumedActivity=" + stack.mResumedActivity);
someActivityPaused |= stack.startPausingLocked(userLeaving, false, resuming,
dontWait);
}
}
}
return someActivityPaused;
}
boolean allPausedActivitiesComplete() {
boolean pausing = true;
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
final ActivityRecord r = stack.mPausingActivity;
if (r != null && r.state != PAUSED && r.state != STOPPED && r.state != STOPPING) {
if (DEBUG_STATES) {
Slog.d(TAG_STATES,
"allPausedActivitiesComplete: r=" + r + " state=" + r.state);
pausing = false;
} else {
return false;
}
}
}
}
return pausing;
}
void cancelInitializingActivities() {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
stacks.get(stackNdx).cancelInitializingActivities();
}
}
}
void waitActivityVisible(ComponentName name, WaitResult result) {
final WaitInfo waitInfo = new WaitInfo(name, result);
mWaitingForActivityVisible.add(waitInfo);
}
void cleanupActivity(ActivityRecord r) {
// Make sure this record is no longer in the pending finishes list.
// This could happen, for example, if we are trimming activities
// down to the max limit while they are still waiting to finish.
mFinishingActivities.remove(r);
mActivitiesWaitingForVisibleActivity.remove(r);
for (int i = mWaitingForActivityVisible.size() - 1; i >= 0; --i) {
if (mWaitingForActivityVisible.get(i).matches(r.realActivity)) {
mWaitingForActivityVisible.remove(i);
}
}
}
void reportActivityVisibleLocked(ActivityRecord r) {
sendWaitingVisibleReportLocked(r);
}
void sendWaitingVisibleReportLocked(ActivityRecord r) {
boolean changed = false;
for (int i = mWaitingForActivityVisible.size() - 1; i >= 0; --i) {
final WaitInfo w = mWaitingForActivityVisible.get(i);
if (w.matches(r.realActivity)) {
final WaitResult result = w.getResult();
changed = true;
result.timeout = false;
result.who = w.getComponent();
result.totalTime = SystemClock.uptimeMillis() - result.thisTime;
result.thisTime = result.totalTime;
mWaitingForActivityVisible.remove(w);
}
}
if (changed) {
mService.notifyAll();
}
}
void reportTaskToFrontNoLaunch(ActivityRecord r) {
boolean changed = false;
for (int i = mWaitingActivityLaunched.size() - 1; i >= 0; i--) {
WaitResult w = mWaitingActivityLaunched.remove(i);
if (w.who == null) {
changed = true;
// Set result to START_TASK_TO_FRONT so that startActivityMayWait() knows that
// the starting activity ends up moving another activity to front, and it should
// wait for this new activity to become visible instead.
// Do not modify other fields.
w.result = START_TASK_TO_FRONT;
}
}
if (changed) {
mService.notifyAll();
}
}
void reportActivityLaunchedLocked(boolean timeout, ActivityRecord r,
long thisTime, long totalTime) {
boolean changed = false;
for (int i = mWaitingActivityLaunched.size() - 1; i >= 0; i--) {
WaitResult w = mWaitingActivityLaunched.remove(i);
if (w.who == null) {
changed = true;
w.timeout = timeout;
if (r != null) {
w.who = new ComponentName(r.info.packageName, r.info.name);
}
w.thisTime = thisTime;
w.totalTime = totalTime;
// Do not modify w.result.
}
}
if (changed) {
mService.notifyAll();
}
}
ActivityRecord topRunningActivityLocked() {
final ActivityStack focusedStack = mFocusedStack;
ActivityRecord r = focusedStack.topRunningActivityLocked();
if (r != null) {
return r;
}
// Look in other non-focused and non-home stacks.
mWindowManager.getDisplaysInFocusOrder(mTmpOrderedDisplayIds);
for (int i = mTmpOrderedDisplayIds.size() - 1; i >= 0; --i) {
final int displayId = mTmpOrderedDisplayIds.get(i);
final List<ActivityStack> stacks = mActivityDisplays.get(displayId).mStacks;
if (stacks == null) {
continue;
}
for (int j = stacks.size() - 1; j >= 0; --j) {
final ActivityStack stack = stacks.get(j);
if (stack != focusedStack && isFrontStackOnDisplay(stack) && stack.isFocusable()) {
r = stack.topRunningActivityLocked();
if (r != null) {
return r;
}
}
}
}
return null;
}
void getTasksLocked(int maxNum, List<RunningTaskInfo> list, int callingUid, boolean allowed) {
// Gather all of the running tasks for each stack into runningTaskLists.
ArrayList<ArrayList<RunningTaskInfo>> runningTaskLists =
new ArrayList<ArrayList<RunningTaskInfo>>();
final int numDisplays = mActivityDisplays.size();
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
ArrayList<RunningTaskInfo> stackTaskList = new ArrayList<>();
runningTaskLists.add(stackTaskList);
stack.getTasksLocked(stackTaskList, callingUid, allowed);
}
}
// The lists are already sorted from most recent to oldest. Just pull the most recent off
// each list and add it to list. Stop when all lists are empty or maxNum reached.
while (maxNum > 0) {
long mostRecentActiveTime = Long.MIN_VALUE;
ArrayList<RunningTaskInfo> selectedStackList = null;
final int numTaskLists = runningTaskLists.size();
for (int stackNdx = 0; stackNdx < numTaskLists; ++stackNdx) {
ArrayList<RunningTaskInfo> stackTaskList = runningTaskLists.get(stackNdx);
if (!stackTaskList.isEmpty()) {
final long lastActiveTime = stackTaskList.get(0).lastActiveTime;
if (lastActiveTime > mostRecentActiveTime) {
mostRecentActiveTime = lastActiveTime;
selectedStackList = stackTaskList;
}
}
}
if (selectedStackList != null) {
list.add(selectedStackList.remove(0));
--maxNum;
} else {
break;
}
}
}
ActivityInfo resolveActivity(Intent intent, ResolveInfo rInfo, int startFlags,
ProfilerInfo profilerInfo) {
final ActivityInfo aInfo = rInfo != null ? rInfo.activityInfo : null;
if (aInfo != null) {
// Store the found target back into the intent, because now that
// we have it we never want to do this again. For example, if the
// user navigates back to this point in the history, we should
// always restart the exact same activity.
intent.setComponent(new ComponentName(
aInfo.applicationInfo.packageName, aInfo.name));
// Don't debug things in the system process
if (!aInfo.processName.equals("system")) {
if ((startFlags & ActivityManager.START_FLAG_DEBUG) != 0) {
mService.setDebugApp(aInfo.processName, true, false);
}
if ((startFlags & ActivityManager.START_FLAG_NATIVE_DEBUGGING) != 0) {
mService.setNativeDebuggingAppLocked(aInfo.applicationInfo, aInfo.processName);
}
if ((startFlags & ActivityManager.START_FLAG_TRACK_ALLOCATION) != 0) {
mService.setTrackAllocationApp(aInfo.applicationInfo, aInfo.processName);
}
if (profilerInfo != null) {
mService.setProfileApp(aInfo.applicationInfo, aInfo.processName, profilerInfo);
}
}
final String intentLaunchToken = intent.getLaunchToken();
if (aInfo.launchToken == null && intentLaunchToken != null) {
aInfo.launchToken = intentLaunchToken;
}
}
return aInfo;
}
ResolveInfo resolveIntent(Intent intent, String resolvedType, int userId) {
return resolveIntent(intent, resolvedType, userId, 0);
}
ResolveInfo resolveIntent(Intent intent, String resolvedType, int userId, int flags) {
synchronized (mService) {
return mService.getPackageManagerInternalLocked().resolveIntent(intent, resolvedType,
PackageManager.MATCH_INSTANT | PackageManager.MATCH_DEFAULT_ONLY | flags
| ActivityManagerService.STOCK_PM_FLAGS, userId);
}
}
ActivityInfo resolveActivity(Intent intent, String resolvedType, int startFlags,
ProfilerInfo profilerInfo, int userId) {
final ResolveInfo rInfo = resolveIntent(intent, resolvedType, userId);
return resolveActivity(intent, rInfo, startFlags, profilerInfo);
}
final boolean realStartActivityLocked(ActivityRecord r, ProcessRecord app,
boolean andResume, boolean checkConfig) throws RemoteException {
if (!allPausedActivitiesComplete()) {
// While there are activities pausing we skipping starting any new activities until
// pauses are complete. NOTE: that we also do this for activities that are starting in
// the paused state because they will first be resumed then paused on the client side.
if (DEBUG_SWITCH || DEBUG_PAUSE || DEBUG_STATES) Slog.v(TAG_PAUSE,
"realStartActivityLocked: Skipping start of r=" + r
+ " some activities pausing...");
return false;
}
final TaskRecord task = r.getTask();
final ActivityStack stack = task.getStack();
beginDeferResume();
try {
r.startFreezingScreenLocked(app, 0);
// schedule launch ticks to collect information about slow apps.
r.startLaunchTickingLocked();
r.app = app;
if (mKeyguardController.isKeyguardLocked()) {
r.notifyUnknownVisibilityLaunched();
}
// Have the window manager re-evaluate the orientation of the screen based on the new
// activity order. Note that as a result of this, it can call back into the activity
// manager with a new orientation. We don't care about that, because the activity is
// not currently running so we are just restarting it anyway.
if (checkConfig) {
final int displayId = r.getDisplayId();
final Configuration config = mWindowManager.updateOrientationFromAppTokens(
getDisplayOverrideConfiguration(displayId),
r.mayFreezeScreenLocked(app) ? r.appToken : null, displayId);
// Deferring resume here because we're going to launch new activity shortly.
// We don't want to perform a redundant launch of the same record while ensuring
// configurations and trying to resume top activity of focused stack.
mService.updateDisplayOverrideConfigurationLocked(config, r, true /* deferResume */,
displayId);
}
if (r.getStack().checkKeyguardVisibility(r, true /* shouldBeVisible */,
true /* isTop */)) {
// We only set the visibility to true if the activity is allowed to be visible
// based on
// keyguard state. This avoids setting this into motion in window manager that is
// later cancelled due to later calls to ensure visible activities that set
// visibility back to false.
r.setVisibility(true);
}
final int applicationInfoUid =
(r.info.applicationInfo != null) ? r.info.applicationInfo.uid : -1;
if ((r.userId != app.userId) || (r.appInfo.uid != applicationInfoUid)) {
Slog.wtf(TAG,
"User ID for activity changing for " + r
+ " appInfo.uid=" + r.appInfo.uid
+ " info.ai.uid=" + applicationInfoUid
+ " old=" + r.app + " new=" + app);
}
app.waitingToKill = null;
r.launchCount++;
r.lastLaunchTime = SystemClock.uptimeMillis();
if (DEBUG_ALL) Slog.v(TAG, "Launching: " + r);
int idx = app.activities.indexOf(r);
if (idx < 0) {
app.activities.add(r);
}
mService.updateLruProcessLocked(app, true, null);
mService.updateOomAdjLocked();
if (task.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE ||
task.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE_PRIV) {
setLockTaskModeLocked(task, LOCK_TASK_MODE_LOCKED, "mLockTaskAuth==LAUNCHABLE",
false);
}
try {
if (app.thread == null) {
throw new RemoteException();
}
List<ResultInfo> results = null;
List<ReferrerIntent> newIntents = null;
if (andResume) {
// We don't need to deliver new intents and/or set results if activity is going
// to pause immediately after launch.
results = r.results;
newIntents = r.newIntents;
}
if (DEBUG_SWITCH) Slog.v(TAG_SWITCH,
"Launching: " + r + " icicle=" + r.icicle + " with results=" + results
+ " newIntents=" + newIntents + " andResume=" + andResume);
EventLog.writeEvent(EventLogTags.AM_RESTART_ACTIVITY, r.userId,
System.identityHashCode(r), task.taskId, r.shortComponentName);
if (r.isHomeActivity()) {
// Home process is the root process of the task.
mService.mHomeProcess = task.mActivities.get(0).app;
}
mService.notifyPackageUse(r.intent.getComponent().getPackageName(),
PackageManager.NOTIFY_PACKAGE_USE_ACTIVITY);
r.sleeping = false;
r.forceNewConfig = false;
mService.showUnsupportedZoomDialogIfNeededLocked(r);
mService.showAskCompatModeDialogLocked(r);
r.compat = mService.compatibilityInfoForPackageLocked(r.info.applicationInfo);
ProfilerInfo profilerInfo = null;
if (mService.mProfileApp != null && mService.mProfileApp.equals(app.processName)) {
if (mService.mProfileProc == null || mService.mProfileProc == app) {
mService.mProfileProc = app;
ProfilerInfo profilerInfoSvc = mService.mProfilerInfo;
if (profilerInfoSvc != null && profilerInfoSvc.profileFile != null) {
if (profilerInfoSvc.profileFd != null) {
try {
profilerInfoSvc.profileFd = profilerInfoSvc.profileFd.dup();
} catch (IOException e) {
profilerInfoSvc.closeFd();
}
}
profilerInfo = new ProfilerInfo(profilerInfoSvc);
}
}
}
app.hasShownUi = true;
app.pendingUiClean = true;
app.forceProcessStateUpTo(mService.mTopProcessState);
// Because we could be starting an Activity in the system process this may not go
// across a Binder interface which would create a new Configuration. Consequently
// we have to always create a new Configuration here.
final MergedConfiguration mergedConfiguration = new MergedConfiguration(
mService.getGlobalConfiguration(), r.getMergedOverrideConfiguration());
r.setLastReportedConfiguration(mergedConfiguration);
logIfTransactionTooLarge(r.intent, r.icicle);
app.thread.scheduleLaunchActivity(new Intent(r.intent), r.appToken,
System.identityHashCode(r), r.info,
// TODO: Have this take the merged configuration instead of separate global
// and override configs.
mergedConfiguration.getGlobalConfiguration(),
mergedConfiguration.getOverrideConfiguration(), r.compat,
r.launchedFromPackage, task.voiceInteractor, app.repProcState, r.icicle,
r.persistentState, results, newIntents, !andResume,
mService.isNextTransitionForward(), profilerInfo);
if ((app.info.privateFlags & ApplicationInfo.PRIVATE_FLAG_CANT_SAVE_STATE) != 0) {
// This may be a heavy-weight process! Note that the package
// manager will ensure that only activity can run in the main
// process of the .apk, which is the only thing that will be
// considered heavy-weight.
if (app.processName.equals(app.info.packageName)) {
if (mService.mHeavyWeightProcess != null
&& mService.mHeavyWeightProcess != app) {
Slog.w(TAG, "Starting new heavy weight process " + app
+ " when already running "
+ mService.mHeavyWeightProcess);
}
mService.mHeavyWeightProcess = app;
Message msg = mService.mHandler.obtainMessage(
ActivityManagerService.POST_HEAVY_NOTIFICATION_MSG);
msg.obj = r;
mService.mHandler.sendMessage(msg);
}
}
} catch (RemoteException e) {
if (r.launchFailed) {
// This is the second time we failed -- finish activity
// and give up.
Slog.e(TAG, "Second failure launching "
+ r.intent.getComponent().flattenToShortString()
+ ", giving up", e);
mService.appDiedLocked(app);
stack.requestFinishActivityLocked(r.appToken, Activity.RESULT_CANCELED, null,
"2nd-crash", false);
return false;
}
// This is the first time we failed -- restart process and
// retry.
r.launchFailed = true;
app.activities.remove(r);
throw e;
}
} finally {
endDeferResume();
}
r.launchFailed = false;
if (stack.updateLRUListLocked(r)) {
Slog.w(TAG, "Activity " + r + " being launched, but already in LRU list");
}
if (andResume && readyToResume()) {
// As part of the process of launching, ActivityThread also performs
// a resume.
stack.minimalResumeActivityLocked(r);
} else {
// This activity is not starting in the resumed state... which should look like we asked
// it to pause+stop (but remain visible), and it has done so and reported back the
// current icicle and other state.
if (DEBUG_STATES) Slog.v(TAG_STATES,
"Moving to PAUSED: " + r + " (starting in paused state)");
r.state = PAUSED;
}
// Launch the new version setup screen if needed. We do this -after-
// launching the initial activity (that is, home), so that it can have
// a chance to initialize itself while in the background, making the
// switch back to it faster and look better.
if (isFocusedStack(stack)) {
mService.startSetupActivityLocked();
}
// Update any services we are bound to that might care about whether
// their client may have activities.
if (r.app != null) {
mService.mServices.updateServiceConnectionActivitiesLocked(r.app);
}
return true;
}
private void logIfTransactionTooLarge(Intent intent, Bundle icicle) {
int extrasSize = 0;
if (intent != null) {
final Bundle extras = intent.getExtras();
if (extras != null) {
extrasSize = extras.getSize();
}
}
int icicleSize = (icicle == null ? 0 : icicle.getSize());
if (extrasSize + icicleSize > 200000) {
Slog.e(TAG, "Transaction too large, intent: " + intent + ", extras size: " + extrasSize
+ ", icicle size: " + icicleSize);
}
}
void startSpecificActivityLocked(ActivityRecord r,
boolean andResume, boolean checkConfig) {
// Is this activity's application already running?
ProcessRecord app = mService.getProcessRecordLocked(r.processName,
r.info.applicationInfo.uid, true);
r.getStack().setLaunchTime(r);
if (app != null && app.thread != null) {
try {
if ((r.info.flags&ActivityInfo.FLAG_MULTIPROCESS) == 0
|| !"android".equals(r.info.packageName)) {
// Don't add this if it is a platform component that is marked
// to run in multiple processes, because this is actually
// part of the framework so doesn't make sense to track as a
// separate apk in the process.
app.addPackage(r.info.packageName, r.info.applicationInfo.versionCode,
mService.mProcessStats);
}
realStartActivityLocked(r, app, andResume, checkConfig);
return;
} catch (RemoteException e) {
Slog.w(TAG, "Exception when starting activity "
+ r.intent.getComponent().flattenToShortString(), e);
}
// If a dead object exception was thrown -- fall through to
// restart the application.
}
mService.startProcessLocked(r.processName, r.info.applicationInfo, true, 0,
"activity", r.intent.getComponent(), false, false, true);
}
boolean checkStartAnyActivityPermission(Intent intent, ActivityInfo aInfo,
String resultWho, int requestCode, int callingPid, int callingUid,
String callingPackage, boolean ignoreTargetSecurity, ProcessRecord callerApp,
ActivityRecord resultRecord, ActivityStack resultStack, ActivityOptions options) {
final int startAnyPerm = mService.checkPermission(START_ANY_ACTIVITY, callingPid,
callingUid);
if (startAnyPerm == PERMISSION_GRANTED) {
return true;
}
final int componentRestriction = getComponentRestrictionForCallingPackage(
aInfo, callingPackage, callingPid, callingUid, ignoreTargetSecurity);
final int actionRestriction = getActionRestrictionForCallingPackage(
intent.getAction(), callingPackage, callingPid, callingUid);
if (componentRestriction == ACTIVITY_RESTRICTION_PERMISSION
|| actionRestriction == ACTIVITY_RESTRICTION_PERMISSION) {
if (resultRecord != null) {
resultStack.sendActivityResultLocked(-1,
resultRecord, resultWho, requestCode,
Activity.RESULT_CANCELED, null);
}
final String msg;
if (actionRestriction == ACTIVITY_RESTRICTION_PERMISSION) {
msg = "Permission Denial: starting " + intent.toString()
+ " from " + callerApp + " (pid=" + callingPid
+ ", uid=" + callingUid + ")" + " with revoked permission "
+ ACTION_TO_RUNTIME_PERMISSION.get(intent.getAction());
} else if (!aInfo.exported) {
msg = "Permission Denial: starting " + intent.toString()
+ " from " + callerApp + " (pid=" + callingPid
+ ", uid=" + callingUid + ")"
+ " not exported from uid " + aInfo.applicationInfo.uid;
} else {
msg = "Permission Denial: starting " + intent.toString()
+ " from " + callerApp + " (pid=" + callingPid
+ ", uid=" + callingUid + ")"
+ " requires " + aInfo.permission;
}
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
if (actionRestriction == ACTIVITY_RESTRICTION_APPOP) {
final String message = "Appop Denial: starting " + intent.toString()
+ " from " + callerApp + " (pid=" + callingPid
+ ", uid=" + callingUid + ")"
+ " requires " + AppOpsManager.permissionToOp(
ACTION_TO_RUNTIME_PERMISSION.get(intent.getAction()));
Slog.w(TAG, message);
return false;
} else if (componentRestriction == ACTIVITY_RESTRICTION_APPOP) {
final String message = "Appop Denial: starting " + intent.toString()
+ " from " + callerApp + " (pid=" + callingPid
+ ", uid=" + callingUid + ")"
+ " requires appop " + AppOpsManager.permissionToOp(aInfo.permission);
Slog.w(TAG, message);
return false;
}
if (options != null) {
if (options.getLaunchTaskId() != INVALID_STACK_ID) {
final int startInTaskPerm = mService.checkPermission(START_TASKS_FROM_RECENTS,
callingPid, callingUid);
if (startInTaskPerm == PERMISSION_DENIED) {
final String msg = "Permission Denial: starting " + intent.toString()
+ " from " + callerApp + " (pid=" + callingPid
+ ", uid=" + callingUid + ") with launchTaskId="
+ options.getLaunchTaskId();
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
}
// Check if someone tries to launch an activity on a private display with a different
// owner.
final int launchDisplayId = options.getLaunchDisplayId();
if (launchDisplayId != INVALID_DISPLAY && !isCallerAllowedToLaunchOnDisplay(callingPid,
callingUid, launchDisplayId, aInfo)) {
final String msg = "Permission Denial: starting " + intent.toString()
+ " from " + callerApp + " (pid=" + callingPid
+ ", uid=" + callingUid + ") with launchDisplayId="
+ launchDisplayId;
Slog.w(TAG, msg);
throw new SecurityException(msg);
}
}
return true;
}
/** Check if caller is allowed to launch activities on specified display. */
boolean isCallerAllowedToLaunchOnDisplay(int callingPid, int callingUid, int launchDisplayId,
ActivityInfo aInfo) {
if (DEBUG_TASKS) Slog.d(TAG, "Launch on display check: displayId=" + launchDisplayId
+ " callingPid=" + callingPid + " callingUid=" + callingUid);
if (callingPid == -1 && callingUid == -1) {
if (DEBUG_TASKS) Slog.d(TAG, "Launch on display check: no caller info, skip check");
return true;
}
final ActivityDisplay activityDisplay = getActivityDisplayOrCreateLocked(launchDisplayId);
if (activityDisplay == null) {
Slog.w(TAG, "Launch on display check: display not found");
return false;
}
// Check if the caller has enough privileges to embed activities and launch to private
// displays.
final int startAnyPerm = mService.checkPermission(INTERNAL_SYSTEM_WINDOW, callingPid,
callingUid);
if (startAnyPerm == PERMISSION_GRANTED) {
if (DEBUG_TASKS) Slog.d(TAG, "Launch on display check:"
+ " allow launch any on display");
return true;
}
// Check if caller is already present on display
final boolean uidPresentOnDisplay = activityDisplay.isUidPresent(callingUid);
final int displayOwnerUid = activityDisplay.mDisplay.getOwnerUid();
if (activityDisplay.mDisplay.getType() == TYPE_VIRTUAL && displayOwnerUid != SYSTEM_UID
&& displayOwnerUid != aInfo.applicationInfo.uid) {
// Limit launching on virtual displays, because their contents can be read from Surface
// by apps that created them.
if ((aInfo.flags & ActivityInfo.FLAG_ALLOW_EMBEDDED) == 0) {
if (DEBUG_TASKS) Slog.d(TAG, "Launch on display check:"
+ " disallow launch on virtual display for not-embedded activity.");
return false;
}
// Check if the caller is allowed to embed activities from other apps.
if (mService.checkPermission(ACTIVITY_EMBEDDING, callingPid, callingUid)
== PERMISSION_DENIED && !uidPresentOnDisplay) {
if (DEBUG_TASKS) Slog.d(TAG, "Launch on display check:"
+ " disallow activity embedding without permission.");
return false;
}
}
if (!activityDisplay.isPrivate()) {
// Anyone can launch on a public display.
if (DEBUG_TASKS) Slog.d(TAG, "Launch on display check:"
+ " allow launch on public display");
return true;
}
// Check if the caller is the owner of the display.
if (displayOwnerUid == callingUid) {
if (DEBUG_TASKS) Slog.d(TAG, "Launch on display check:"
+ " allow launch for owner of the display");
return true;
}
if (uidPresentOnDisplay) {
if (DEBUG_TASKS) Slog.d(TAG, "Launch on display check:"
+ " allow launch for caller present on the display");
return true;
}
Slog.w(TAG, "Launch on display check: denied");
return false;
}
/** Update lists of UIDs that are present on displays and have access to them. */
void updateUIDsPresentOnDisplay() {
mDisplayAccessUIDs.clear();
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ActivityDisplay activityDisplay = mActivityDisplays.valueAt(displayNdx);
// Only bother calculating the whitelist for private displays
if (activityDisplay.isPrivate()) {
mDisplayAccessUIDs.append(
activityDisplay.mDisplayId, activityDisplay.getPresentUIDs());
}
}
// Store updated lists in DisplayManager. Callers from outside of AM should get them there.
mDisplayManagerInternal.setDisplayAccessUIDs(mDisplayAccessUIDs);
}
UserInfo getUserInfo(int userId) {
final long identity = Binder.clearCallingIdentity();
try {
return UserManager.get(mService.mContext).getUserInfo(userId);
} finally {
Binder.restoreCallingIdentity(identity);
}
}
private int getComponentRestrictionForCallingPackage(ActivityInfo activityInfo,
String callingPackage, int callingPid, int callingUid, boolean ignoreTargetSecurity) {
if (!ignoreTargetSecurity && mService.checkComponentPermission(activityInfo.permission,
callingPid, callingUid, activityInfo.applicationInfo.uid, activityInfo.exported)
== PERMISSION_DENIED) {
return ACTIVITY_RESTRICTION_PERMISSION;
}
if (activityInfo.permission == null) {
return ACTIVITY_RESTRICTION_NONE;
}
final int opCode = AppOpsManager.permissionToOpCode(activityInfo.permission);
if (opCode == AppOpsManager.OP_NONE) {
return ACTIVITY_RESTRICTION_NONE;
}
if (mService.mAppOpsService.noteOperation(opCode, callingUid,
callingPackage) != AppOpsManager.MODE_ALLOWED) {
if (!ignoreTargetSecurity) {
return ACTIVITY_RESTRICTION_APPOP;
}
}
return ACTIVITY_RESTRICTION_NONE;
}
private int getActionRestrictionForCallingPackage(String action,
String callingPackage, int callingPid, int callingUid) {
if (action == null) {
return ACTIVITY_RESTRICTION_NONE;
}
String permission = ACTION_TO_RUNTIME_PERMISSION.get(action);
if (permission == null) {
return ACTIVITY_RESTRICTION_NONE;
}
final PackageInfo packageInfo;
try {
packageInfo = mService.mContext.getPackageManager()
.getPackageInfo(callingPackage, PackageManager.GET_PERMISSIONS);
} catch (PackageManager.NameNotFoundException e) {
Slog.i(TAG, "Cannot find package info for " + callingPackage);
return ACTIVITY_RESTRICTION_NONE;
}
if (!ArrayUtils.contains(packageInfo.requestedPermissions, permission)) {
return ACTIVITY_RESTRICTION_NONE;
}
if (mService.checkPermission(permission, callingPid, callingUid) == PERMISSION_DENIED) {
return ACTIVITY_RESTRICTION_PERMISSION;
}
final int opCode = AppOpsManager.permissionToOpCode(permission);
if (opCode == AppOpsManager.OP_NONE) {
return ACTIVITY_RESTRICTION_NONE;
}
if (mService.mAppOpsService.noteOperation(opCode, callingUid,
callingPackage) != AppOpsManager.MODE_ALLOWED) {
return ACTIVITY_RESTRICTION_APPOP;
}
return ACTIVITY_RESTRICTION_NONE;
}
void setLaunchSource(int uid) {
mLaunchingActivity.setWorkSource(new WorkSource(uid));
}
void acquireLaunchWakelock() {
if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) {
throw new IllegalStateException("Calling must be system uid");
}
mLaunchingActivity.acquire();
if (!mHandler.hasMessages(LAUNCH_TIMEOUT_MSG)) {
// To be safe, don't allow the wake lock to be held for too long.
mHandler.sendEmptyMessageDelayed(LAUNCH_TIMEOUT_MSG, LAUNCH_TIMEOUT);
}
}
/**
* Called when the frontmost task is idle.
* @return the state of mService.mBooting before this was called.
*/
private boolean checkFinishBootingLocked() {
final boolean booting = mService.mBooting;
boolean enableScreen = false;
mService.mBooting = false;
if (!mService.mBooted) {
mService.mBooted = true;
enableScreen = true;
}
if (booting || enableScreen) {
mService.postFinishBooting(booting, enableScreen);
}
return booting;
}
// Checked.
final ActivityRecord activityIdleInternalLocked(final IBinder token, boolean fromTimeout,
boolean processPausingActivities, Configuration config) {
if (DEBUG_ALL) Slog.v(TAG, "Activity idle: " + token);
ArrayList<ActivityRecord> finishes = null;
ArrayList<UserState> startingUsers = null;
int NS = 0;
int NF = 0;
boolean booting = false;
boolean activityRemoved = false;
ActivityRecord r = ActivityRecord.forTokenLocked(token);
if (r != null) {
if (DEBUG_IDLE) Slog.d(TAG_IDLE, "activityIdleInternalLocked: Callers="
+ Debug.getCallers(4));
mHandler.removeMessages(IDLE_TIMEOUT_MSG, r);
r.finishLaunchTickingLocked();
if (fromTimeout) {
reportActivityLaunchedLocked(fromTimeout, r, -1, -1);
}
// This is a hack to semi-deal with a race condition
// in the client where it can be constructed with a
// newer configuration from when we asked it to launch.
// We'll update with whatever configuration it now says
// it used to launch.
if (config != null) {
r.setLastReportedGlobalConfiguration(config);
}
// We are now idle. If someone is waiting for a thumbnail from
// us, we can now deliver.
r.idle = true;
//Slog.i(TAG, "IDLE: mBooted=" + mBooted + ", fromTimeout=" + fromTimeout);
if (isFocusedStack(r.getStack()) || fromTimeout) {
booting = checkFinishBootingLocked();
}
}
if (allResumedActivitiesIdle()) {
if (r != null) {
mService.scheduleAppGcsLocked();
}
if (mLaunchingActivity.isHeld()) {
mHandler.removeMessages(LAUNCH_TIMEOUT_MSG);
if (VALIDATE_WAKE_LOCK_CALLER &&
Binder.getCallingUid() != Process.myUid()) {
throw new IllegalStateException("Calling must be system uid");
}
mLaunchingActivity.release();
}
ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
}
// Atomically retrieve all of the other things to do.
final ArrayList<ActivityRecord> stops = processStoppingActivitiesLocked(r,
true /* remove */, processPausingActivities);
NS = stops != null ? stops.size() : 0;
if ((NF = mFinishingActivities.size()) > 0) {
finishes = new ArrayList<>(mFinishingActivities);
mFinishingActivities.clear();
}
if (mStartingUsers.size() > 0) {
startingUsers = new ArrayList<>(mStartingUsers);
mStartingUsers.clear();
}
// Stop any activities that are scheduled to do so but have been
// waiting for the next one to start.
for (int i = 0; i < NS; i++) {
r = stops.get(i);
final ActivityStack stack = r.getStack();
if (stack != null) {
if (r.finishing) {
stack.finishCurrentActivityLocked(r, ActivityStack.FINISH_IMMEDIATELY, false);
} else {
stack.stopActivityLocked(r);
}
}
}
// Finish any activities that are scheduled to do so but have been
// waiting for the next one to start.
for (int i = 0; i < NF; i++) {
r = finishes.get(i);
final ActivityStack stack = r.getStack();
if (stack != null) {
activityRemoved |= stack.destroyActivityLocked(r, true, "finish-idle");
}
}
if (!booting) {
// Complete user switch
if (startingUsers != null) {
for (int i = 0; i < startingUsers.size(); i++) {
mService.mUserController.finishUserSwitch(startingUsers.get(i));
}
}
}
mService.trimApplications();
//dump();
//mWindowManager.dump();
if (activityRemoved) {
resumeFocusedStackTopActivityLocked();
}
return r;
}
boolean handleAppDiedLocked(ProcessRecord app) {
boolean hasVisibleActivities = false;
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
hasVisibleActivities |= stacks.get(stackNdx).handleAppDiedLocked(app);
}
}
return hasVisibleActivities;
}
void closeSystemDialogsLocked() {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
stacks.get(stackNdx).closeSystemDialogsLocked();
}
}
}
void removeUserLocked(int userId) {
mUserStackInFront.delete(userId);
}
/**
* Update the last used stack id for non-current user (current user's last
* used stack is the focused stack)
*/
void updateUserStackLocked(int userId, ActivityStack stack) {
if (userId != mCurrentUser) {
mUserStackInFront.put(userId, stack != null ? stack.getStackId() : HOME_STACK_ID);
}
}
/**
* @return true if some activity was finished (or would have finished if doit were true).
*/
boolean finishDisabledPackageActivitiesLocked(String packageName, Set<String> filterByClasses,
boolean doit, boolean evenPersistent, int userId) {
boolean didSomething = false;
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
if (stack.finishDisabledPackageActivitiesLocked(
packageName, filterByClasses, doit, evenPersistent, userId)) {
didSomething = true;
}
}
}
return didSomething;
}
void updatePreviousProcessLocked(ActivityRecord r) {
// Now that this process has stopped, we may want to consider
// it to be the previous app to try to keep around in case
// the user wants to return to it.
// First, found out what is currently the foreground app, so that
// we don't blow away the previous app if this activity is being
// hosted by the process that is actually still the foreground.
ProcessRecord fgApp = null;
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
if (isFocusedStack(stack)) {
if (stack.mResumedActivity != null) {
fgApp = stack.mResumedActivity.app;
} else if (stack.mPausingActivity != null) {
fgApp = stack.mPausingActivity.app;
}
break;
}
}
}
// Now set this one as the previous process, only if that really
// makes sense to.
if (r.app != null && fgApp != null && r.app != fgApp
&& r.lastVisibleTime > mService.mPreviousProcessVisibleTime
&& r.app != mService.mHomeProcess) {
mService.mPreviousProcess = r.app;
mService.mPreviousProcessVisibleTime = r.lastVisibleTime;
}
}
boolean resumeFocusedStackTopActivityLocked() {
return resumeFocusedStackTopActivityLocked(null, null, null);
}
boolean resumeFocusedStackTopActivityLocked(
ActivityStack targetStack, ActivityRecord target, ActivityOptions targetOptions) {
if (!readyToResume()) {
return false;
}
if (targetStack != null && isFocusedStack(targetStack)) {
return targetStack.resumeTopActivityUncheckedLocked(target, targetOptions);
}
final ActivityRecord r = mFocusedStack.topRunningActivityLocked();
if (r == null || r.state != RESUMED) {
mFocusedStack.resumeTopActivityUncheckedLocked(null, null);
} else if (r.state == RESUMED) {
// Kick off any lingering app transitions form the MoveTaskToFront operation.
mFocusedStack.executeAppTransition(targetOptions);
}
return false;
}
void updateActivityApplicationInfoLocked(ApplicationInfo aInfo) {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
stacks.get(stackNdx).updateActivityApplicationInfoLocked(aInfo);
}
}
}
TaskRecord finishTopRunningActivityLocked(ProcessRecord app, String reason) {
TaskRecord finishedTask = null;
ActivityStack focusedStack = getFocusedStack();
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
final int numStacks = stacks.size();
for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
TaskRecord t = stack.finishTopRunningActivityLocked(app, reason);
if (stack == focusedStack || finishedTask == null) {
finishedTask = t;
}
}
}
return finishedTask;
}
void finishVoiceTask(IVoiceInteractionSession session) {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
final int numStacks = stacks.size();
for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
stack.finishVoiceTask(session);
}
}
}
void findTaskToMoveToFrontLocked(TaskRecord task, int flags, ActivityOptions options,
String reason, boolean forceNonResizeable) {
if ((flags & ActivityManager.MOVE_TASK_NO_USER_ACTION) == 0) {
mUserLeaving = true;
}
if ((flags & ActivityManager.MOVE_TASK_WITH_HOME) != 0) {
// Caller wants the home activity moved with it. To accomplish this,
// we'll just indicate that this task returns to the home task.
task.setTaskToReturnTo(HOME_ACTIVITY_TYPE);
}
ActivityStack currentStack = task.getStack();
if (currentStack == null) {
Slog.e(TAG, "findTaskToMoveToFrontLocked: can't move task="
+ task + " to front. Stack is null");
return;
}
if (task.isResizeable() && options != null) {
int stackId = options.getLaunchStackId();
if (canUseActivityOptionsLaunchBounds(options, stackId)) {
final Rect bounds = TaskRecord.validateBounds(options.getLaunchBounds());
task.updateOverrideConfiguration(bounds);
if (stackId == INVALID_STACK_ID) {
stackId = task.getLaunchStackId();
}
if (stackId != currentStack.mStackId) {
task.reparent(stackId, ON_TOP, REPARENT_KEEP_STACK_AT_FRONT, !ANIMATE,
DEFER_RESUME, "findTaskToMoveToFrontLocked");
stackId = currentStack.mStackId;
// moveTaskToStackUncheckedLocked() should already placed the task on top,
// still need moveTaskToFrontLocked() below for any transition settings.
}
if (StackId.resizeStackWithLaunchBounds(stackId)) {
resizeStackLocked(stackId, bounds,
null /* tempTaskBounds */, null /* tempTaskInsetBounds */,
!PRESERVE_WINDOWS, true /* allowResizeInDockedMode */, !DEFER_RESUME);
} else {
// WM resizeTask must be done after the task is moved to the correct stack,
// because Task's setBounds() also updates dim layer's bounds, but that has
// dependency on the stack.
task.resizeWindowContainer();
}
}
}
final ActivityRecord r = task.getTopActivity();
currentStack.moveTaskToFrontLocked(task, false /* noAnimation */, options,
r == null ? null : r.appTimeTracker, reason);
if (DEBUG_STACK) Slog.d(TAG_STACK,
"findTaskToMoveToFront: moved to front of stack=" + currentStack);
handleNonResizableTaskIfNeeded(task, INVALID_STACK_ID, DEFAULT_DISPLAY,
currentStack.mStackId, forceNonResizeable);
}
boolean canUseActivityOptionsLaunchBounds(ActivityOptions options, int launchStackId) {
// We use the launch bounds in the activity options is the device supports freeform
// window management or is launching into the pinned stack.
if (options.getLaunchBounds() == null) {
return false;
}
return (mService.mSupportsPictureInPicture && launchStackId == PINNED_STACK_ID)
|| mService.mSupportsFreeformWindowManagement;
}
protected <T extends ActivityStack> T getStack(int stackId) {
return getStack(stackId, !CREATE_IF_NEEDED, !ON_TOP);
}
protected <T extends ActivityStack> T getStack(int stackId, boolean createStaticStackIfNeeded,
boolean createOnTop) {
final ActivityStack stack = mStacks.get(stackId);
if (stack != null) {
return (T) stack;
}
if (!createStaticStackIfNeeded || !StackId.isStaticStack(stackId)) {
return null;
}
if (stackId == DOCKED_STACK_ID) {
// Make sure recents stack exist when creating a dock stack as it normally need to be on
// the other side of the docked stack and we make visibility decisions based on that.
getStack(RECENTS_STACK_ID, CREATE_IF_NEEDED, createOnTop);
}
return (T) createStackOnDisplay(stackId, DEFAULT_DISPLAY, createOnTop);
}
/**
* Get a topmost stack on the display, that is a valid launch stack for specified activity.
* If there is no such stack, new dynamic stack can be created.
* @param displayId Target display.
* @param r Activity that should be launched there.
* @return Existing stack if there is a valid one, new dynamic stack if it is valid or null.
*/
ActivityStack getValidLaunchStackOnDisplay(int displayId, @NonNull ActivityRecord r) {
final ActivityDisplay activityDisplay = getActivityDisplayOrCreateLocked(displayId);
if (activityDisplay == null) {
throw new IllegalArgumentException(
"Display with displayId=" + displayId + " not found.");
}
// Return the topmost valid stack on the display.
for (int i = activityDisplay.mStacks.size() - 1; i >= 0; --i) {
final ActivityStack stack = activityDisplay.mStacks.get(i);
if (mService.mActivityStarter.isValidLaunchStackId(stack.mStackId, displayId, r)) {
return stack;
}
}
// If there is no valid stack on the external display - check if new dynamic stack will do.
if (displayId != Display.DEFAULT_DISPLAY) {
final int newDynamicStackId = getNextStackId();
if (mService.mActivityStarter.isValidLaunchStackId(newDynamicStackId, displayId, r)) {
return createStackOnDisplay(newDynamicStackId, displayId, true /*onTop*/);
}
}
Slog.w(TAG, "getValidLaunchStackOnDisplay: can't launch on displayId " + displayId);
return null;
}
ArrayList<ActivityStack> getStacks() {
ArrayList<ActivityStack> allStacks = new ArrayList<>();
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
allStacks.addAll(mActivityDisplays.valueAt(displayNdx).mStacks);
}
return allStacks;
}
ArrayList<ActivityStack> getStacksOnDefaultDisplay() {
return mActivityDisplays.valueAt(DEFAULT_DISPLAY).mStacks;
}
/**
* Get next focusable stack in the system. This will search across displays and stacks
* in last-focused order for a focusable and visible stack, different from the target stack.
*
* @param currentFocus The stack that previously had focus and thus needs to be ignored when
* searching for next candidate.
* @return Next focusable {@link ActivityStack}, null if not found.
*/
ActivityStack getNextFocusableStackLocked(ActivityStack currentFocus) {
mWindowManager.getDisplaysInFocusOrder(mTmpOrderedDisplayIds);
for (int i = mTmpOrderedDisplayIds.size() - 1; i >= 0; --i) {
final int displayId = mTmpOrderedDisplayIds.get(i);
// If a display is registered in WM, it must also be available in AM.
@SuppressWarnings("ConstantConditions")
final List<ActivityStack> stacks = getActivityDisplayOrCreateLocked(displayId).mStacks;
for (int j = stacks.size() - 1; j >= 0; --j) {
final ActivityStack stack = stacks.get(j);
if (stack != currentFocus && stack.isFocusable()
&& stack.shouldBeVisible(null) != STACK_INVISIBLE) {
return stack;
}
}
}
return null;
}
/**
* Get next valid stack for launching provided activity in the system. This will search across
* displays and stacks in last-focused order for a focusable and visible stack, except those
* that are on a currently focused display.
*
* @param r The activity that is being launched.
* @param currentFocus The display that previously had focus and thus needs to be ignored when
* searching for the next candidate.
* @return Next valid {@link ActivityStack}, null if not found.
*/
ActivityStack getNextValidLaunchStackLocked(@NonNull ActivityRecord r, int currentFocus) {
mWindowManager.getDisplaysInFocusOrder(mTmpOrderedDisplayIds);
for (int i = mTmpOrderedDisplayIds.size() - 1; i >= 0; --i) {
final int displayId = mTmpOrderedDisplayIds.get(i);
if (displayId == currentFocus) {
continue;
}
final ActivityStack stack = getValidLaunchStackOnDisplay(displayId, r);
if (stack != null) {
return stack;
}
}
return null;
}
ActivityRecord getHomeActivity() {
return getHomeActivityForUser(mCurrentUser);
}
ActivityRecord getHomeActivityForUser(int userId) {
final ArrayList<TaskRecord> tasks = mHomeStack.getAllTasks();
for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) {
final TaskRecord task = tasks.get(taskNdx);
if (task.isHomeTask()) {
final ArrayList<ActivityRecord> activities = task.mActivities;
for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) {
final ActivityRecord r = activities.get(activityNdx);
if (r.isHomeActivity()
&& ((userId == UserHandle.USER_ALL) || (r.userId == userId))) {
return r;
}
}
}
}
return null;
}
/**
* Returns if a stack should be treated as if it's docked. Returns true if the stack is
* the docked stack itself, or if it's side-by-side to the docked stack.
*/
boolean isStackDockedInEffect(int stackId) {
return stackId == DOCKED_STACK_ID ||
(StackId.isResizeableByDockedStack(stackId) && getStack(DOCKED_STACK_ID) != null);
}
void resizeStackLocked(int stackId, Rect bounds, Rect tempTaskBounds, Rect tempTaskInsetBounds,
boolean preserveWindows, boolean allowResizeInDockedMode, boolean deferResume) {
if (stackId == DOCKED_STACK_ID) {
resizeDockedStackLocked(bounds, tempTaskBounds, tempTaskInsetBounds, null, null,
preserveWindows, deferResume);
return;
}
final ActivityStack stack = getStack(stackId);
if (stack == null) {
Slog.w(TAG, "resizeStack: stackId " + stackId + " not found.");
return;
}
if (!allowResizeInDockedMode && !StackId.tasksAreFloating(stackId) &&
getStack(DOCKED_STACK_ID) != null) {
// If the docked stack exists, don't resize non-floating stacks independently of the
// size computed from the docked stack size (otherwise they will be out of sync)
return;
}
Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "am.resizeStack_" + stackId);
mWindowManager.deferSurfaceLayout();
try {
stack.resize(bounds, tempTaskBounds, tempTaskInsetBounds);
if (!deferResume) {
stack.ensureVisibleActivitiesConfigurationLocked(
stack.topRunningActivityLocked(), preserveWindows);
}
} finally {
mWindowManager.continueSurfaceLayout();
Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER);
}
}
void deferUpdateBounds(int stackId) {
final ActivityStack stack = getStack(stackId);
if (stack != null) {
stack.deferUpdateBounds();
}
}
void continueUpdateBounds(int stackId) {
final ActivityStack stack = getStack(stackId);
if (stack != null) {
stack.continueUpdateBounds();
}
}
void notifyAppTransitionDone() {
continueUpdateBounds(RECENTS_STACK_ID);
for (int i = mResizingTasksDuringAnimation.size() - 1; i >= 0; i--) {
final int taskId = mResizingTasksDuringAnimation.valueAt(i);
final TaskRecord task =
anyTaskForIdLocked(taskId, MATCH_TASK_IN_STACKS_ONLY, INVALID_STACK_ID);
if (task != null) {
task.setTaskDockedResizing(false);
}
}
mResizingTasksDuringAnimation.clear();
}
private void moveTasksToFullscreenStackInSurfaceTransaction(int fromStackId,
boolean onTop) {
final ActivityStack stack = getStack(fromStackId);
if (stack == null) {
return;
}
mWindowManager.deferSurfaceLayout();
try {
if (fromStackId == DOCKED_STACK_ID) {
// We are moving all tasks from the docked stack to the fullscreen stack,
// which is dismissing the docked stack, so resize all other stacks to
// fullscreen here already so we don't end up with resize trashing.
for (int i = FIRST_STATIC_STACK_ID; i <= LAST_STATIC_STACK_ID; i++) {
if (StackId.isResizeableByDockedStack(i)) {
ActivityStack otherStack = getStack(i);
if (otherStack != null) {
resizeStackLocked(i, null, null, null, PRESERVE_WINDOWS,
true /* allowResizeInDockedMode */, DEFER_RESUME);
}
}
}
// Also disable docked stack resizing since we have manually adjusted the
// size of other stacks above and we don't want to trigger a docked stack
// resize when we remove task from it below and it is detached from the
// display because it no longer contains any tasks.
mAllowDockedStackResize = false;
} else if (fromStackId == PINNED_STACK_ID) {
if (onTop) {
// Log if we are expanding the PiP to fullscreen
MetricsLogger.action(mService.mContext,
ACTION_PICTURE_IN_PICTURE_EXPANDED_TO_FULLSCREEN);
}
}
ActivityStack fullscreenStack = getStack(FULLSCREEN_WORKSPACE_STACK_ID);
final boolean isFullscreenStackVisible = fullscreenStack != null &&
fullscreenStack.shouldBeVisible(null) == STACK_VISIBLE;
// If we are moving from the pinned stack, then the animation takes care of updating
// the picture-in-picture mode.
final boolean schedulePictureInPictureModeChange = (fromStackId == PINNED_STACK_ID);
final ArrayList<TaskRecord> tasks = stack.getAllTasks();
final int size = tasks.size();
if (onTop) {
for (int i = 0; i < size; i++) {
final TaskRecord task = tasks.get(i);
final boolean isTopTask = i == (size - 1);
if (fromStackId == PINNED_STACK_ID) {
// Update the return-to to reflect where the pinned stack task was moved
// from so that we retain the stack that was previously visible if the
// pinned stack is recreated. See moveActivityToPinnedStackLocked().
task.setTaskToReturnTo(isFullscreenStackVisible && onTop ?
APPLICATION_ACTIVITY_TYPE : HOME_ACTIVITY_TYPE);
}
// Defer resume until all the tasks have been moved to the fullscreen stack
task.reparent(FULLSCREEN_WORKSPACE_STACK_ID, ON_TOP,
REPARENT_MOVE_STACK_TO_FRONT, isTopTask /* animate */, DEFER_RESUME,
schedulePictureInPictureModeChange,
"moveTasksToFullscreenStack - onTop");
}
} else {
for (int i = 0; i < size; i++) {
final TaskRecord task = tasks.get(i);
// Position the tasks in the fullscreen stack in order at the bottom of the
// stack. Also defer resume until all the tasks have been moved to the
// fullscreen stack.
task.reparent(FULLSCREEN_WORKSPACE_STACK_ID, i /* position */,
REPARENT_LEAVE_STACK_IN_PLACE, !ANIMATE, DEFER_RESUME,
schedulePictureInPictureModeChange,
"moveTasksToFullscreenStack - NOT_onTop");
}
}
ensureActivitiesVisibleLocked(null, 0, PRESERVE_WINDOWS);
resumeFocusedStackTopActivityLocked();
} finally {
mAllowDockedStackResize = true;
mWindowManager.continueSurfaceLayout();
}
}
void moveTasksToFullscreenStackLocked(int fromStackId, boolean onTop) {
mWindowManager.inSurfaceTransaction(
() -> moveTasksToFullscreenStackInSurfaceTransaction(fromStackId, onTop));
}
void resizeDockedStackLocked(Rect dockedBounds, Rect tempDockedTaskBounds,
Rect tempDockedTaskInsetBounds, Rect tempOtherTaskBounds, Rect tempOtherTaskInsetBounds,
boolean preserveWindows) {
resizeDockedStackLocked(dockedBounds, tempDockedTaskBounds, tempDockedTaskInsetBounds,
tempOtherTaskBounds, tempOtherTaskInsetBounds, preserveWindows,
false /* deferResume */);
}
void resizeDockedStackLocked(Rect dockedBounds, Rect tempDockedTaskBounds,
Rect tempDockedTaskInsetBounds, Rect tempOtherTaskBounds, Rect tempOtherTaskInsetBounds,
boolean preserveWindows, boolean deferResume) {
if (!mAllowDockedStackResize) {
// Docked stack resize currently disabled.
return;
}
final ActivityStack stack = getStack(DOCKED_STACK_ID);
if (stack == null) {
Slog.w(TAG, "resizeDockedStackLocked: docked stack not found");
return;
}
Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "am.resizeDockedStack");
mWindowManager.deferSurfaceLayout();
try {
// Don't allow re-entry while resizing. E.g. due to docked stack detaching.
mAllowDockedStackResize = false;
ActivityRecord r = stack.topRunningActivityLocked();
stack.resize(dockedBounds, tempDockedTaskBounds, tempDockedTaskInsetBounds);
// TODO: Checking for isAttached might not be needed as if the user passes in null
// dockedBounds then they want the docked stack to be dismissed.
if (stack.mFullscreen || (dockedBounds == null && !stack.isAttached())) {
// The dock stack either was dismissed or went fullscreen, which is kinda the same.
// In this case we make all other static stacks fullscreen and move all
// docked stack tasks to the fullscreen stack.
moveTasksToFullscreenStackLocked(DOCKED_STACK_ID, ON_TOP);
// stack shouldn't contain anymore activities, so nothing to resume.
r = null;
} else {
// Docked stacks occupy a dedicated region on screen so the size of all other
// static stacks need to be adjusted so they don't overlap with the docked stack.
// We get the bounds to use from window manager which has been adjusted for any
// screen controls and is also the same for all stacks.
final Rect otherTaskRect = new Rect();
for (int i = FIRST_STATIC_STACK_ID; i <= LAST_STATIC_STACK_ID; i++) {
final ActivityStack current = getStack(i);
if (current != null && StackId.isResizeableByDockedStack(i)) {
current.getStackDockedModeBounds(
tempOtherTaskBounds /* currentTempTaskBounds */,
tempRect /* outStackBounds */,
otherTaskRect /* outTempTaskBounds */, true /* ignoreVisibility */);
resizeStackLocked(i, !tempRect.isEmpty() ? tempRect : null,
!otherTaskRect.isEmpty() ? otherTaskRect : tempOtherTaskBounds,
tempOtherTaskInsetBounds, preserveWindows,
true /* allowResizeInDockedMode */, deferResume);
}
}
}
if (!deferResume) {
stack.ensureVisibleActivitiesConfigurationLocked(r, preserveWindows);
}
} finally {
mAllowDockedStackResize = true;
mWindowManager.continueSurfaceLayout();
Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER);
}
}
void resizePinnedStackLocked(Rect pinnedBounds, Rect tempPinnedTaskBounds) {
final PinnedActivityStack stack = getStack(PINNED_STACK_ID);
if (stack == null) {
Slog.w(TAG, "resizePinnedStackLocked: pinned stack not found");
return;
}
// It is possible for the bounds animation from the WM to call this but be delayed by
// another AM call that is holding the AMS lock. In such a case, the pinnedBounds may be
// incorrect if AMS.resizeStackWithBoundsFromWindowManager() is already called while waiting
// for the AMS lock to be freed. So check and make sure these bounds are still good.
final PinnedStackWindowController stackController = stack.getWindowContainerController();
if (stackController.pinnedStackResizeDisallowed()) {
return;
}
Trace.traceBegin(TRACE_TAG_ACTIVITY_MANAGER, "am.resizePinnedStack");
mWindowManager.deferSurfaceLayout();
try {
ActivityRecord r = stack.topRunningActivityLocked();
Rect insetBounds = null;
if (tempPinnedTaskBounds != null) {
// We always use 0,0 as the position for the inset rect because
// if we are getting insets at all in the pinned stack it must mean
// we are headed for fullscreen.
insetBounds = tempRect;
insetBounds.top = 0;
insetBounds.left = 0;
insetBounds.right = tempPinnedTaskBounds.width();
insetBounds.bottom = tempPinnedTaskBounds.height();
}
stack.resize(pinnedBounds, tempPinnedTaskBounds, insetBounds);
stack.ensureVisibleActivitiesConfigurationLocked(r, false);
} finally {
mWindowManager.continueSurfaceLayout();
Trace.traceEnd(TRACE_TAG_ACTIVITY_MANAGER);
}
}
ActivityStack createStackOnDisplay(int stackId, int displayId, boolean onTop) {
final ActivityDisplay activityDisplay = getActivityDisplayOrCreateLocked(displayId);
if (activityDisplay == null) {
return null;
}
return createStack(stackId, activityDisplay, onTop);
}
ActivityStack createStack(int stackId, ActivityDisplay display, boolean onTop) {
switch (stackId) {
case PINNED_STACK_ID:
return new PinnedActivityStack(display, stackId, this, mRecentTasks, onTop);
default:
return new ActivityStack(display, stackId, this, mRecentTasks, onTop);
}
}
void removeStackInSurfaceTransaction(int stackId) {
final ActivityStack stack = getStack(stackId);
if (stack == null) {
return;
}
final ArrayList<TaskRecord> tasks = stack.getAllTasks();
if (stack.getStackId() == PINNED_STACK_ID) {
/**
* Workaround: Force-stop all the activities in the pinned stack before we reparent them
* to the fullscreen stack. This is to guarantee that when we are removing a stack,
* that the client receives onStop() before it is reparented. We do this by detaching
* the stack from the display so that it will be considered invisible when
* ensureActivitiesVisibleLocked() is called, and all of its activitys will be marked
* invisible as well and added to the stopping list. After which we process the
* stopping list by handling the idle.
*/
final PinnedActivityStack pinnedStack = (PinnedActivityStack) stack;
pinnedStack.mForceHidden = true;
pinnedStack.ensureActivitiesVisibleLocked(null, 0, PRESERVE_WINDOWS);
pinnedStack.mForceHidden = false;
activityIdleInternalLocked(null, false /* fromTimeout */,
true /* processPausingActivites */, null /* configuration */);
// Move all the tasks to the bottom of the fullscreen stack
moveTasksToFullscreenStackLocked(PINNED_STACK_ID, !ON_TOP);
} else {
for (int i = tasks.size() - 1; i >= 0; i--) {
removeTaskByIdLocked(tasks.get(i).taskId, true /* killProcess */,
REMOVE_FROM_RECENTS);
}
}
}
/**
* Removes the stack associated with the given {@param stackId}. If the {@param stackId} is the
* pinned stack, then its tasks are not explicitly removed when the stack is destroyed, but
* instead moved back onto the fullscreen stack.
*/
void removeStackLocked(int stackId) {
mWindowManager.inSurfaceTransaction(
() -> removeStackInSurfaceTransaction(stackId));
}
/**
* See {@link #removeTaskByIdLocked(int, boolean, boolean, boolean)}
*/
boolean removeTaskByIdLocked(int taskId, boolean killProcess, boolean removeFromRecents) {
return removeTaskByIdLocked(taskId, killProcess, removeFromRecents, !PAUSE_IMMEDIATELY);
}
/**
* Removes the task with the specified task id.
*
* @param taskId Identifier of the task to be removed.
* @param killProcess Kill any process associated with the task if possible.
* @param removeFromRecents Whether to also remove the task from recents.
* @param pauseImmediately Pauses all task activities immediately without waiting for the
* pause-complete callback from the activity.
* @return Returns true if the given task was found and removed.
*/
boolean removeTaskByIdLocked(int taskId, boolean killProcess, boolean removeFromRecents,
boolean pauseImmediately) {
final TaskRecord tr = anyTaskForIdLocked(taskId, MATCH_TASK_IN_STACKS_OR_RECENT_TASKS,
INVALID_STACK_ID);
if (tr != null) {
tr.removeTaskActivitiesLocked(pauseImmediately);
cleanUpRemovedTaskLocked(tr, killProcess, removeFromRecents);
if (tr.isPersistable) {
mService.notifyTaskPersisterLocked(null, true);
}
return true;
}
Slog.w(TAG, "Request to remove task ignored for non-existent task " + taskId);
return false;
}
void cleanUpRemovedTaskLocked(TaskRecord tr, boolean killProcess, boolean removeFromRecents) {
if (removeFromRecents) {
mRecentTasks.remove(tr);
tr.removedFromRecents();
}
ComponentName component = tr.getBaseIntent().getComponent();
if (component == null) {
Slog.w(TAG, "No component for base intent of task: " + tr);
return;
}
// Find any running services associated with this app and stop if needed.
mService.mServices.cleanUpRemovedTaskLocked(tr, component, new Intent(tr.getBaseIntent()));
if (!killProcess) {
return;
}
// Determine if the process(es) for this task should be killed.
final String pkg = component.getPackageName();
ArrayList<ProcessRecord> procsToKill = new ArrayList<>();
ArrayMap<String, SparseArray<ProcessRecord>> pmap = mService.mProcessNames.getMap();
for (int i = 0; i < pmap.size(); i++) {
SparseArray<ProcessRecord> uids = pmap.valueAt(i);
for (int j = 0; j < uids.size(); j++) {
ProcessRecord proc = uids.valueAt(j);
if (proc.userId != tr.userId) {
// Don't kill process for a different user.
continue;
}
if (proc == mService.mHomeProcess) {
// Don't kill the home process along with tasks from the same package.
continue;
}
if (!proc.pkgList.containsKey(pkg)) {
// Don't kill process that is not associated with this task.
continue;
}
for (int k = 0; k < proc.activities.size(); k++) {
TaskRecord otherTask = proc.activities.get(k).getTask();
if (tr.taskId != otherTask.taskId && otherTask.inRecents) {
// Don't kill process(es) that has an activity in a different task that is
// also in recents.
return;
}
}
if (proc.foregroundServices) {
// Don't kill process(es) with foreground service.
return;
}
// Add process to kill list.
procsToKill.add(proc);
}
}
// Kill the running processes.
for (int i = 0; i < procsToKill.size(); i++) {
ProcessRecord pr = procsToKill.get(i);
if (pr.setSchedGroup == ProcessList.SCHED_GROUP_BACKGROUND
&& pr.curReceivers.isEmpty()) {
pr.kill("remove task", true);
} else {
// We delay killing processes that are not in the background or running a receiver.
pr.waitingToKill = "remove task";
}
}
}
int getNextStackId() {
while (true) {
if (mNextFreeStackId >= FIRST_DYNAMIC_STACK_ID
&& getStack(mNextFreeStackId) == null) {
break;
}
mNextFreeStackId++;
}
return mNextFreeStackId;
}
/**
* Restores a recent task to a stack
* @param task The recent task to be restored.
* @param stackId The stack to restore the task to (default launch stack will be used
* if stackId is {@link android.app.ActivityManager.StackId#INVALID_STACK_ID}
* or is not a static stack).
* @return true if the task has been restored successfully.
*/
boolean restoreRecentTaskLocked(TaskRecord task, int stackId) {
if (!StackId.isStaticStack(stackId)) {
// If stack is not static (or stack id is invalid) - use the default one.
// This means that tasks that were on external displays will be restored on the
// primary display.
stackId = task.getLaunchStackId();
} else if (stackId == DOCKED_STACK_ID && !task.supportsSplitScreen()) {
// Preferred stack is the docked stack, but the task can't go in the docked stack.
// Put it in the fullscreen stack.
stackId = FULLSCREEN_WORKSPACE_STACK_ID;
}
final ActivityStack currentStack = task.getStack();
if (currentStack != null) {
// Task has already been restored once. See if we need to do anything more
if (currentStack.mStackId == stackId) {
// Nothing else to do since it is already restored in the right stack.
return true;
}
// Remove current stack association, so we can re-associate the task with the
// right stack below.
currentStack.removeTask(task, "restoreRecentTaskLocked", REMOVE_TASK_MODE_MOVING);
}
final ActivityStack stack =
getStack(stackId, CREATE_IF_NEEDED, !ON_TOP);
if (stack == null) {
// What does this mean??? Not sure how we would get here...
if (DEBUG_RECENTS) Slog.v(TAG_RECENTS,
"Unable to find/create stack to restore recent task=" + task);
return false;
}
stack.addTask(task, false /* toTop */, "restoreRecentTask");
// TODO: move call for creation here and other place into Stack.addTask()
task.createWindowContainer(false /* toTop */, true /* showForAllUsers */);
if (DEBUG_RECENTS) Slog.v(TAG_RECENTS,
"Added restored task=" + task + " to stack=" + stack);
final ArrayList<ActivityRecord> activities = task.mActivities;
for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) {
activities.get(activityNdx).createWindowContainer();
}
return true;
}
/**
* Move stack with all its existing content to specified display.
* @param stackId Id of stack to move.
* @param displayId Id of display to move stack to.
* @param onTop Indicates whether container should be place on top or on bottom.
*/
void moveStackToDisplayLocked(int stackId, int displayId, boolean onTop) {
final ActivityDisplay activityDisplay = getActivityDisplayOrCreateLocked(displayId);
if (activityDisplay == null) {
throw new IllegalArgumentException("moveStackToDisplayLocked: Unknown displayId="
+ displayId);
}
final ActivityStack stack = mStacks.get(stackId);
if (stack == null) {
throw new IllegalArgumentException("moveStackToDisplayLocked: Unknown stackId="
+ stackId);
}
final ActivityDisplay currentDisplay = stack.getDisplay();
if (currentDisplay == null) {
throw new IllegalStateException("moveStackToDisplayLocked: Stack with stack=" + stack
+ " is not attached to any display.");
}
if (currentDisplay.mDisplayId == displayId) {
throw new IllegalArgumentException("Trying to move stack=" + stack
+ " to its current displayId=" + displayId);
}
stack.reparent(activityDisplay, onTop);
// TODO(multi-display): resize stacks properly if moved from split-screen.
}
/**
* Returns the reparent target stack, creating the stack if necessary. This call also enforces
* the various checks on tasks that are going to be reparented from one stack to another.
*/
ActivityStack getReparentTargetStack(TaskRecord task, int stackId, boolean toTop) {
final ActivityStack prevStack = task.getStack();
// Check that we aren't reparenting to the same stack that the task is already in
if (prevStack != null && prevStack.mStackId == stackId) {
Slog.w(TAG, "Can not reparent to same stack, task=" + task
+ " already in stackId=" + stackId);
return prevStack;
}
// Ensure that we aren't trying to move into a multi-window stack without multi-window
// support
if (StackId.isMultiWindowStack(stackId) && !mService.mSupportsMultiWindow) {
throw new IllegalArgumentException("Device doesn't support multi-window, can not"
+ " reparent task=" + task + " to stackId=" + stackId);
}
// Ensure that we're not moving a task to a dynamic stack if device doesn't support
// multi-display.
// TODO(multi-display): Support non-dynamic stacks on secondary displays.
if (StackId.isDynamicStack(stackId) && !mService.mSupportsMultiDisplay) {
throw new IllegalArgumentException("Device doesn't support multi-display, can not"
+ " reparent task=" + task + " to stackId=" + stackId);
}
// Ensure that we aren't trying to move into a freeform stack without freeform
// support
if (stackId == FREEFORM_WORKSPACE_STACK_ID && !mService.mSupportsFreeformWindowManagement) {
throw new IllegalArgumentException("Device doesn't support freeform, can not reparent"
+ " task=" + task);
}
// We don't allow moving a unresizeable task to the docked stack since the docked stack is
// used for split-screen mode and will cause things like the docked divider to show up. We
// instead leave the task in its current stack or move it to the fullscreen stack if it
// isn't currently in a stack.
if (stackId == DOCKED_STACK_ID && !task.isResizeable()) {
stackId = (prevStack != null) ? prevStack.mStackId : FULLSCREEN_WORKSPACE_STACK_ID;
Slog.w(TAG, "Can not move unresizeable task=" + task + " to docked stack."
+ " Moving to stackId=" + stackId + " instead.");
}
// Temporarily disable resizeablility of the task as we don't want it to be resized if, for
// example, a docked stack is created which will lead to the stack we are moving from being
// resized and and its resizeable tasks being resized.
try {
task.mTemporarilyUnresizable = true;
return getStack(stackId, CREATE_IF_NEEDED, toTop);
} finally {
task.mTemporarilyUnresizable = false;
}
}
boolean moveTopStackActivityToPinnedStackLocked(int stackId, Rect destBounds) {
final ActivityStack stack = getStack(stackId, !CREATE_IF_NEEDED, !ON_TOP);
if (stack == null) {
throw new IllegalArgumentException(
"moveTopStackActivityToPinnedStackLocked: Unknown stackId=" + stackId);
}
final ActivityRecord r = stack.topRunningActivityLocked();
if (r == null) {
Slog.w(TAG, "moveTopStackActivityToPinnedStackLocked: No top running activity"
+ " in stack=" + stack);
return false;
}
if (!mService.mForceResizableActivities && !r.supportsPictureInPicture()) {
Slog.w(TAG,
"moveTopStackActivityToPinnedStackLocked: Picture-In-Picture not supported for "
+ " r=" + r);
return false;
}
moveActivityToPinnedStackLocked(r, null /* sourceBounds */, 0f /* aspectRatio */,
true /* moveHomeStackToFront */, "moveTopActivityToPinnedStack");
return true;
}
void moveActivityToPinnedStackLocked(ActivityRecord r, Rect sourceHintBounds, float aspectRatio,
boolean moveHomeStackToFront, String reason) {
mWindowManager.deferSurfaceLayout();
// This will clear the pinned stack by moving an existing task to the full screen stack,
// ensuring only one task is present.
moveTasksToFullscreenStackLocked(PINNED_STACK_ID, !ON_TOP);
// Need to make sure the pinned stack exist so we can resize it below...
final PinnedActivityStack stack = getStack(PINNED_STACK_ID, CREATE_IF_NEEDED, ON_TOP);
try {
final TaskRecord task = r.getTask();
// Resize the pinned stack to match the current size of the task the activity we are
// going to be moving is currently contained in. We do this to have the right starting
// animation bounds for the pinned stack to the desired bounds the caller wants.
resizeStackLocked(PINNED_STACK_ID, task.mBounds, null /* tempTaskBounds */,
null /* tempTaskInsetBounds */, !PRESERVE_WINDOWS,
true /* allowResizeInDockedMode */, !DEFER_RESUME);
if (task.mActivities.size() == 1) {
// There is only one activity in the task. So, we can just move the task over to
// the stack without re-parenting the activity in a different task. We don't
// move the home stack forward if we are currently entering picture-in-picture
// while pausing because that changes the focused stack and may prevent the new
// starting activity from resuming.
if (moveHomeStackToFront && task.getTaskToReturnTo() == HOME_ACTIVITY_TYPE
&& (r.state == RESUMED || !r.supportsEnterPipOnTaskSwitch)) {
// Move the home stack forward if the task we just moved to the pinned stack
// was launched from home so home should be visible behind it.
moveHomeStackToFront(reason);
}
// Defer resume until below, and do not schedule PiP changes until we animate below
task.reparent(PINNED_STACK_ID, ON_TOP, REPARENT_MOVE_STACK_TO_FRONT, !ANIMATE,
DEFER_RESUME, false /* schedulePictureInPictureModeChange */, reason);
} else {
// There are multiple activities in the task and moving the top activity should
// reveal/leave the other activities in their original task.
// Currently, we don't support reparenting activities across tasks in two different
// stacks, so instead, just create a new task in the same stack, reparent the
// activity into that task, and then reparent the whole task to the new stack. This
// ensures that all the necessary work to migrate states in the old and new stacks
// is also done.
final TaskRecord newTask = task.getStack().createTaskRecord(
getNextTaskIdForUserLocked(r.userId), r.info, r.intent, null, null, true,
r.mActivityType);
r.reparent(newTask, MAX_VALUE, "moveActivityToStack");
// Defer resume until below, and do not schedule PiP changes until we animate below
newTask.reparent(PINNED_STACK_ID, ON_TOP, REPARENT_MOVE_STACK_TO_FRONT, !ANIMATE,
DEFER_RESUME, false /* schedulePictureInPictureModeChange */, reason);
}
// Reset the state that indicates it can enter PiP while pausing after we've moved it
// to the pinned stack
r.supportsEnterPipOnTaskSwitch = false;
} finally {
mWindowManager.continueSurfaceLayout();
}
// Calculate the default bounds (don't use existing stack bounds as we may have just created
// the stack, and schedule the start of the animation into PiP (the bounds animator that
// is triggered by this is posted on another thread)
final Rect destBounds = stack.getDefaultPictureInPictureBounds(aspectRatio);
stack.animateResizePinnedStack(sourceHintBounds, destBounds, -1 /* animationDuration */,
true /* fromFullscreen */);
// Update the visibility of all activities after the they have been reparented to the new
// stack. This MUST run after the animation above is scheduled to ensure that the windows
// drawn signal is scheduled after the bounds animation start call on the bounds animator
// thread.
ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
resumeFocusedStackTopActivityLocked();
mService.mTaskChangeNotificationController.notifyActivityPinned(r.packageName, r.userId,
r.getTask().taskId);
}
/** Move activity with its stack to front and make the stack focused. */
boolean moveFocusableActivityStackToFrontLocked(ActivityRecord r, String reason) {
if (r == null || !r.isFocusable()) {
if (DEBUG_FOCUS) Slog.d(TAG_FOCUS,
"moveActivityStackToFront: unfocusable r=" + r);
return false;
}
final TaskRecord task = r.getTask();
final ActivityStack stack = r.getStack();
if (stack == null) {
Slog.w(TAG, "moveActivityStackToFront: invalid task or stack: r="
+ r + " task=" + task);
return false;
}
if (stack == mFocusedStack && stack.topRunningActivityLocked() == r) {
if (DEBUG_FOCUS) Slog.d(TAG_FOCUS,
"moveActivityStackToFront: already on top, r=" + r);
return false;
}
if (DEBUG_FOCUS) Slog.d(TAG_FOCUS,
"moveActivityStackToFront: r=" + r);
stack.moveToFront(reason, task);
return true;
}
ActivityRecord findTaskLocked(ActivityRecord r, int displayId) {
mTmpFindTaskResult.r = null;
mTmpFindTaskResult.matchedByRootAffinity = false;
ActivityRecord affinityMatch = null;
if (DEBUG_TASKS) Slog.d(TAG_TASKS, "Looking for task of " + r);
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
if (!checkActivityBelongsInStack(r, stack)) {
if (DEBUG_TASKS) Slog.d(TAG_TASKS, "Skipping stack: (mismatch activity/stack) "
+ stack);
continue;
}
stack.findTaskLocked(r, mTmpFindTaskResult);
// It is possible to have tasks in multiple stacks with the same root affinity, so
// we should keep looking after finding an affinity match to see if there is a
// better match in another stack. Also, task affinity isn't a good enough reason
// to target a display which isn't the source of the intent, so skip any affinity
// matches not on the specified display.
if (mTmpFindTaskResult.r != null) {
if (!mTmpFindTaskResult.matchedByRootAffinity) {
return mTmpFindTaskResult.r;
} else if (mTmpFindTaskResult.r.getDisplayId() == displayId) {
// Note: since the traversing through the stacks is top down, the floating
// tasks should always have lower priority than any affinity-matching tasks
// in the fullscreen stacks
affinityMatch = mTmpFindTaskResult.r;
}
}
}
}
if (DEBUG_TASKS && affinityMatch == null) Slog.d(TAG_TASKS, "No task found");
return affinityMatch;
}
/**
* Checks that for the given activity {@param r}, its activity type matches the {@param stack}
* type.
*/
private boolean checkActivityBelongsInStack(ActivityRecord r, ActivityStack stack) {
if (r.isHomeActivity()) {
return stack.isHomeStack();
} else if (r.isRecentsActivity()) {
return stack.isRecentsStack();
} else if (r.isAssistantActivity()) {
return stack.isAssistantStack();
}
return true;
}
ActivityRecord findActivityLocked(Intent intent, ActivityInfo info,
boolean compareIntentFilters) {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityRecord ar = stacks.get(stackNdx)
.findActivityLocked(intent, info, compareIntentFilters);
if (ar != null) {
return ar;
}
}
}
return null;
}
boolean hasAwakeDisplay() {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ActivityDisplay display = mActivityDisplays.valueAt(displayNdx);
if (!display.shouldSleep()) {
return true;
}
}
return false;
}
void goingToSleepLocked() {
scheduleSleepTimeout();
if (!mGoingToSleep.isHeld()) {
mGoingToSleep.acquire();
if (mLaunchingActivity.isHeld()) {
if (VALIDATE_WAKE_LOCK_CALLER && Binder.getCallingUid() != Process.myUid()) {
throw new IllegalStateException("Calling must be system uid");
}
mLaunchingActivity.release();
mService.mHandler.removeMessages(LAUNCH_TIMEOUT_MSG);
}
}
applySleepTokensLocked(false /* applyToStacks */);
checkReadyForSleepLocked(true /* allowDelay */);
}
void prepareForShutdownLocked() {
for (int i = 0; i < mActivityDisplays.size(); i++) {
createSleepTokenLocked("shutdown", mActivityDisplays.keyAt(i));
}
}
boolean shutdownLocked(int timeout) {
goingToSleepLocked();
boolean timedout = false;
final long endTime = System.currentTimeMillis() + timeout;
while (true) {
if (!putStacksToSleepLocked(true /* allowDelay */, true /* shuttingDown */)) {
long timeRemaining = endTime - System.currentTimeMillis();
if (timeRemaining > 0) {
try {
mService.wait(timeRemaining);
} catch (InterruptedException e) {
}
} else {
Slog.w(TAG, "Activity manager shutdown timed out");
timedout = true;
break;
}
} else {
break;
}
}
// Force checkReadyForSleep to complete.
checkReadyForSleepLocked(false /* allowDelay */);
return timedout;
}
void comeOutOfSleepIfNeededLocked() {
removeSleepTimeouts();
if (mGoingToSleep.isHeld()) {
mGoingToSleep.release();
}
}
void applySleepTokensLocked(boolean applyToStacks) {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
// Set the sleeping state of the display.
final ActivityDisplay display = mActivityDisplays.valueAt(displayNdx);
final boolean displayShouldSleep = display.shouldSleep();
if (displayShouldSleep == display.isSleeping()) {
continue;
}
display.setIsSleeping(displayShouldSleep);
if (!applyToStacks) {
continue;
}
// Set the sleeping state of the stacks on the display.
final ArrayList<ActivityStack> stacks = display.mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
if (displayShouldSleep) {
stack.goToSleepIfPossible(false /* shuttingDown */);
} else {
stack.awakeFromSleepingLocked();
if (isFocusedStack(stack)) {
resumeFocusedStackTopActivityLocked();
}
}
}
if (displayShouldSleep || mGoingToSleepActivities.isEmpty()) {
continue;
}
// The display is awake now, so clean up the going to sleep list.
for (Iterator<ActivityRecord> it = mGoingToSleepActivities.iterator(); it.hasNext(); ) {
final ActivityRecord r = it.next();
if (r.getDisplayId() == display.mDisplayId) {
it.remove();
}
}
}
}
void activitySleptLocked(ActivityRecord r) {
mGoingToSleepActivities.remove(r);
final ActivityStack s = r.getStack();
if (s != null) {
s.checkReadyForSleep();
} else {
checkReadyForSleepLocked(true);
}
}
void checkReadyForSleepLocked(boolean allowDelay) {
if (!mService.isSleepingOrShuttingDownLocked()) {
// Do not care.
return;
}
if (!putStacksToSleepLocked(allowDelay, false /* shuttingDown */)) {
return;
}
// Send launch end powerhint before going sleep
mService.mActivityStarter.sendPowerHintForLaunchEndIfNeeded();
removeSleepTimeouts();
if (mGoingToSleep.isHeld()) {
mGoingToSleep.release();
}
if (mService.mShuttingDown) {
mService.notifyAll();
}
}
// Tries to put all activity stacks to sleep. Returns true if all stacks were
// successfully put to sleep.
private boolean putStacksToSleepLocked(boolean allowDelay, boolean shuttingDown) {
boolean allSleep = true;
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
if (allowDelay) {
allSleep &= stacks.get(stackNdx).goToSleepIfPossible(shuttingDown);
} else {
stacks.get(stackNdx).goToSleep();
}
}
}
return allSleep;
}
boolean reportResumedActivityLocked(ActivityRecord r) {
// A resumed activity cannot be stopping. remove from list
mStoppingActivities.remove(r);
final ActivityStack stack = r.getStack();
if (isFocusedStack(stack)) {
mService.updateUsageStats(r, true);
}
if (allResumedActivitiesComplete()) {
ensureActivitiesVisibleLocked(null, 0, !PRESERVE_WINDOWS);
mWindowManager.executeAppTransition();
return true;
}
return false;
}
void handleAppCrashLocked(ProcessRecord app) {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
int stackNdx = stacks.size() - 1;
while (stackNdx >= 0) {
stacks.get(stackNdx).handleAppCrashLocked(app);
stackNdx--;
}
}
}
// Called when WindowManager has finished animating the launchingBehind activity to the back.
private void handleLaunchTaskBehindCompleteLocked(ActivityRecord r) {
final TaskRecord task = r.getTask();
final ActivityStack stack = task.getStack();
r.mLaunchTaskBehind = false;
task.setLastThumbnailLocked(r.screenshotActivityLocked());
mRecentTasks.addLocked(task);
mService.mTaskChangeNotificationController.notifyTaskStackChanged();
r.setVisibility(false);
// When launching tasks behind, update the last active time of the top task after the new
// task has been shown briefly
final ActivityRecord top = stack.topActivity();
if (top != null) {
top.getTask().touchActiveTime();
}
}
void scheduleLaunchTaskBehindComplete(IBinder token) {
mHandler.obtainMessage(LAUNCH_TASK_BEHIND_COMPLETE, token).sendToTarget();
}
void ensureActivitiesVisibleLocked(ActivityRecord starting, int configChanges,
boolean preserveWindows) {
mKeyguardController.beginActivityVisibilityUpdate();
try {
// First the front stacks. In case any are not fullscreen and are in front of home.
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
final int topStackNdx = stacks.size() - 1;
for (int stackNdx = topStackNdx; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
stack.ensureActivitiesVisibleLocked(starting, configChanges, preserveWindows);
}
}
} finally {
mKeyguardController.endActivityVisibilityUpdate();
}
}
void addStartingWindowsForVisibleActivities(boolean taskSwitch) {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
final int topStackNdx = stacks.size() - 1;
for (int stackNdx = topStackNdx; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
stack.addStartingWindowsForVisibleActivities(taskSwitch);
}
}
}
void invalidateTaskLayers() {
mTaskLayersChanged = true;
}
void rankTaskLayersIfNeeded() {
if (!mTaskLayersChanged) {
return;
}
mTaskLayersChanged = false;
for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); displayNdx++) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
int baseLayer = 0;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
baseLayer += stacks.get(stackNdx).rankTaskLayers(baseLayer);
}
}
}
void clearOtherAppTimeTrackers(AppTimeTracker except) {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
final int topStackNdx = stacks.size() - 1;
for (int stackNdx = topStackNdx; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
stack.clearOtherAppTimeTrackers(except);
}
}
}
void scheduleDestroyAllActivities(ProcessRecord app, String reason) {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
final int numStacks = stacks.size();
for (int stackNdx = 0; stackNdx < numStacks; ++stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
stack.scheduleDestroyActivities(app, reason);
}
}
}
void releaseSomeActivitiesLocked(ProcessRecord app, String reason) {
// Examine all activities currently running in the process.
TaskRecord firstTask = null;
// Tasks is non-null only if two or more tasks are found.
ArraySet<TaskRecord> tasks = null;
if (DEBUG_RELEASE) Slog.d(TAG_RELEASE, "Trying to release some activities in " + app);
for (int i = 0; i < app.activities.size(); i++) {
ActivityRecord r = app.activities.get(i);
// First, if we find an activity that is in the process of being destroyed,
// then we just aren't going to do anything for now; we want things to settle
// down before we try to prune more activities.
if (r.finishing || r.state == DESTROYING || r.state == DESTROYED) {
if (DEBUG_RELEASE) Slog.d(TAG_RELEASE, "Abort release; already destroying: " + r);
return;
}
// Don't consider any activies that are currently not in a state where they
// can be destroyed.
if (r.visible || !r.stopped || !r.haveState || r.state == RESUMED || r.state == PAUSING
|| r.state == PAUSED || r.state == STOPPING) {
if (DEBUG_RELEASE) Slog.d(TAG_RELEASE, "Not releasing in-use activity: " + r);
continue;
}
final TaskRecord task = r.getTask();
if (task != null) {
if (DEBUG_RELEASE) Slog.d(TAG_RELEASE, "Collecting release task " + task
+ " from " + r);
if (firstTask == null) {
firstTask = task;
} else if (firstTask != task) {
if (tasks == null) {
tasks = new ArraySet<>();
tasks.add(firstTask);
}
tasks.add(task);
}
}
}
if (tasks == null) {
if (DEBUG_RELEASE) Slog.d(TAG_RELEASE, "Didn't find two or more tasks to release");
return;
}
// If we have activities in multiple tasks that are in a position to be destroyed,
// let's iterate through the tasks and release the oldest one.
final int numDisplays = mActivityDisplays.size();
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
// Step through all stacks starting from behind, to hit the oldest things first.
for (int stackNdx = 0; stackNdx < stacks.size(); stackNdx++) {
final ActivityStack stack = stacks.get(stackNdx);
// Try to release activities in this stack; if we manage to, we are done.
if (stack.releaseSomeActivitiesLocked(app, tasks, reason) > 0) {
return;
}
}
}
}
boolean switchUserLocked(int userId, UserState uss) {
final int focusStackId = mFocusedStack.getStackId();
// We dismiss the docked stack whenever we switch users.
moveTasksToFullscreenStackLocked(DOCKED_STACK_ID, focusStackId == DOCKED_STACK_ID);
// Also dismiss the pinned stack whenever we switch users. Removing the pinned stack will
// also cause all tasks to be moved to the fullscreen stack at a position that is
// appropriate.
removeStackLocked(PINNED_STACK_ID);
mUserStackInFront.put(mCurrentUser, focusStackId);
final int restoreStackId = mUserStackInFront.get(userId, HOME_STACK_ID);
mCurrentUser = userId;
mStartingUsers.add(uss);
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
stack.switchUserLocked(userId);
TaskRecord task = stack.topTask();
if (task != null) {
stack.positionChildWindowContainerAtTop(task);
}
}
}
ActivityStack stack = getStack(restoreStackId);
if (stack == null) {
stack = mHomeStack;
}
final boolean homeInFront = stack.isHomeStack();
if (stack.isOnHomeDisplay()) {
stack.moveToFront("switchUserOnHomeDisplay");
} else {
// Stack was moved to another display while user was swapped out.
resumeHomeStackTask(null, "switchUserOnOtherDisplay");
}
return homeInFront;
}
/** Checks whether the userid is a profile of the current user. */
boolean isCurrentProfileLocked(int userId) {
if (userId == mCurrentUser) return true;
return mService.mUserController.isCurrentProfileLocked(userId);
}
/**
* Returns whether a stopping activity is present that should be stopped after visible, rather
* than idle.
* @return {@code true} if such activity is present. {@code false} otherwise.
*/
boolean isStoppingNoHistoryActivity() {
// Activities that are marked as nohistory should be stopped immediately after the resumed
// activity has become visible.
for (ActivityRecord record : mStoppingActivities) {
if (record.isNoHistory()) {
return true;
}
}
return false;
}
final ArrayList<ActivityRecord> processStoppingActivitiesLocked(ActivityRecord idleActivity,
boolean remove, boolean processPausingActivities) {
ArrayList<ActivityRecord> stops = null;
final boolean nowVisible = allResumedActivitiesVisible();
for (int activityNdx = mStoppingActivities.size() - 1; activityNdx >= 0; --activityNdx) {
ActivityRecord s = mStoppingActivities.get(activityNdx);
boolean waitingVisible = mActivitiesWaitingForVisibleActivity.contains(s);
if (DEBUG_STATES) Slog.v(TAG, "Stopping " + s + ": nowVisible=" + nowVisible
+ " waitingVisible=" + waitingVisible + " finishing=" + s.finishing);
if (waitingVisible && nowVisible) {
mActivitiesWaitingForVisibleActivity.remove(s);
waitingVisible = false;
if (s.finishing) {
// If this activity is finishing, it is sitting on top of
// everyone else but we now know it is no longer needed...
// so get rid of it. Otherwise, we need to go through the
// normal flow and hide it once we determine that it is
// hidden by the activities in front of it.
if (DEBUG_STATES) Slog.v(TAG, "Before stopping, can hide: " + s);
s.setVisibility(false);
}
}
if (remove) {
final ActivityStack stack = s.getStack();
final boolean shouldSleepOrShutDown = stack != null
? stack.shouldSleepOrShutDownActivities()
: mService.isSleepingOrShuttingDownLocked();
if (!waitingVisible || shouldSleepOrShutDown) {
if (!processPausingActivities && s.state == PAUSING) {
// Defer processing pausing activities in this iteration and reschedule
// a delayed idle to reprocess it again
removeTimeoutsForActivityLocked(idleActivity);
scheduleIdleTimeoutLocked(idleActivity);
continue;
}
if (DEBUG_STATES) Slog.v(TAG, "Ready to stop: " + s);
if (stops == null) {
stops = new ArrayList<>();
}
stops.add(s);
mStoppingActivities.remove(activityNdx);
}
}
}
return stops;
}
void validateTopActivitiesLocked() {
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
final ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
final ActivityRecord r = stack.topRunningActivityLocked();
final ActivityState state = r == null ? DESTROYED : r.state;
if (isFocusedStack(stack)) {
if (r == null) Slog.e(TAG,
"validateTop...: null top activity, stack=" + stack);
else {
final ActivityRecord pausing = stack.mPausingActivity;
if (pausing != null && pausing == r) Slog.e(TAG,
"validateTop...: top stack has pausing activity r=" + r
+ " state=" + state);
if (state != INITIALIZING && state != RESUMED) Slog.e(TAG,
"validateTop...: activity in front not resumed r=" + r
+ " state=" + state);
}
} else {
final ActivityRecord resumed = stack.mResumedActivity;
if (resumed != null && resumed == r) Slog.e(TAG,
"validateTop...: back stack has resumed activity r=" + r
+ " state=" + state);
if (r != null && (state == INITIALIZING || state == RESUMED)) Slog.e(TAG,
"validateTop...: activity in back resumed r=" + r + " state=" + state);
}
}
}
}
private String lockTaskModeToString() {
switch (mLockTaskModeState) {
case LOCK_TASK_MODE_LOCKED:
return "LOCKED";
case LOCK_TASK_MODE_PINNED:
return "PINNED";
case LOCK_TASK_MODE_NONE:
return "NONE";
default: return "unknown=" + mLockTaskModeState;
}
}
public void dump(PrintWriter pw, String prefix) {
pw.print(prefix); pw.print("mFocusedStack=" + mFocusedStack);
pw.print(" mLastFocusedStack="); pw.println(mLastFocusedStack);
pw.print(prefix);
pw.println("mCurTaskIdForUser=" + mCurTaskIdForUser);
pw.print(prefix); pw.println("mUserStackInFront=" + mUserStackInFront);
pw.print(prefix); pw.println("mStacks=" + mStacks);
pw.print(prefix); pw.print("mLockTaskModeState=" + lockTaskModeToString());
final SparseArray<String[]> packages = mService.mLockTaskPackages;
if (packages.size() > 0) {
pw.print(prefix); pw.println("mLockTaskPackages (userId:packages)=");
for (int i = 0; i < packages.size(); ++i) {
pw.print(prefix); pw.print(prefix); pw.print(packages.keyAt(i));
pw.print(":"); pw.println(Arrays.toString(packages.valueAt(i)));
}
}
if (!mWaitingForActivityVisible.isEmpty()) {
pw.print(prefix); pw.println("mWaitingForActivityVisible=");
for (int i = 0; i < mWaitingForActivityVisible.size(); ++i) {
pw.print(prefix); pw.print(prefix); mWaitingForActivityVisible.get(i).dump(pw, prefix);
}
}
pw.println(" mLockTaskModeTasks" + mLockTaskModeTasks);
mKeyguardController.dump(pw, prefix);
}
/**
* Dump all connected displays' configurations.
* @param prefix Prefix to apply to each line of the dump.
*/
void dumpDisplayConfigs(PrintWriter pw, String prefix) {
pw.print(prefix); pw.println("Display override configurations:");
final int displayCount = mActivityDisplays.size();
for (int i = 0; i < displayCount; i++) {
final ActivityDisplay activityDisplay = mActivityDisplays.valueAt(i);
pw.print(prefix); pw.print(" "); pw.print(activityDisplay.mDisplayId); pw.print(": ");
pw.println(activityDisplay.getOverrideConfiguration());
}
}
/**
* Dumps the activities matching the given {@param name} in the either the focused stack
* or all visible stacks if {@param dumpVisibleStacks} is true.
*/
ArrayList<ActivityRecord> getDumpActivitiesLocked(String name, boolean dumpVisibleStacksOnly,
boolean dumpFocusedStackOnly) {
if (dumpFocusedStackOnly) {
return mFocusedStack.getDumpActivitiesLocked(name);
} else {
ArrayList<ActivityRecord> activities = new ArrayList<>();
int numDisplays = mActivityDisplays.size();
for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
ActivityStack stack = stacks.get(stackNdx);
if (!dumpVisibleStacksOnly ||
stack.shouldBeVisible(null) == STACK_VISIBLE) {
activities.addAll(stack.getDumpActivitiesLocked(name));
}
}
}
return activities;
}
}
static boolean printThisActivity(PrintWriter pw, ActivityRecord activity, String dumpPackage,
boolean needSep, String prefix) {
if (activity != null) {
if (dumpPackage == null || dumpPackage.equals(activity.packageName)) {
if (needSep) {
pw.println();
}
pw.print(prefix);
pw.println(activity);
return true;
}
}
return false;
}
boolean dumpActivitiesLocked(FileDescriptor fd, PrintWriter pw, boolean dumpAll,
boolean dumpClient, String dumpPackage) {
boolean printed = false;
boolean needSep = false;
for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) {
ActivityDisplay activityDisplay = mActivityDisplays.valueAt(displayNdx);
pw.print("Display #"); pw.print(activityDisplay.mDisplayId);
pw.println(" (activities from top to bottom):");
ArrayList<ActivityStack> stacks = activityDisplay.mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
StringBuilder stackHeader = new StringBuilder(128);
stackHeader.append(" Stack #");
stackHeader.append(stack.mStackId);
stackHeader.append(":");
stackHeader.append("\n");
stackHeader.append(" mFullscreen=" + stack.mFullscreen);
stackHeader.append("\n");
stackHeader.append(" isSleeping=" + stack.shouldSleepActivities());
stackHeader.append("\n");
stackHeader.append(" mBounds=" + stack.mBounds);
final boolean printedStackHeader = stack.dumpActivitiesLocked(fd, pw, dumpAll,
dumpClient, dumpPackage, needSep, stackHeader.toString());
printed |= printedStackHeader;
if (!printedStackHeader) {
// Ensure we always dump the stack header even if there are no activities
pw.println();
pw.println(stackHeader);
}
printed |= dumpHistoryList(fd, pw, stack.mLRUActivities, " ", "Run", false,
!dumpAll, false, dumpPackage, true,
" Running activities (most recent first):", null);
needSep = printed;
boolean pr = printThisActivity(pw, stack.mPausingActivity, dumpPackage, needSep,
" mPausingActivity: ");
if (pr) {
printed = true;
needSep = false;
}
pr = printThisActivity(pw, stack.mResumedActivity, dumpPackage, needSep,
" mResumedActivity: ");
if (pr) {
printed = true;
needSep = false;
}
if (dumpAll) {
pr = printThisActivity(pw, stack.mLastPausedActivity, dumpPackage, needSep,
" mLastPausedActivity: ");
if (pr) {
printed = true;
needSep = true;
}
printed |= printThisActivity(pw, stack.mLastNoHistoryActivity, dumpPackage,
needSep, " mLastNoHistoryActivity: ");
}
needSep = printed;
}
}
printed |= dumpHistoryList(fd, pw, mFinishingActivities, " ", "Fin", false, !dumpAll,
false, dumpPackage, true, " Activities waiting to finish:", null);
printed |= dumpHistoryList(fd, pw, mStoppingActivities, " ", "Stop", false, !dumpAll,
false, dumpPackage, true, " Activities waiting to stop:", null);
printed |= dumpHistoryList(fd, pw, mActivitiesWaitingForVisibleActivity, " ", "Wait",
false, !dumpAll, false, dumpPackage, true,
" Activities waiting for another to become visible:", null);
printed |= dumpHistoryList(fd, pw, mGoingToSleepActivities, " ", "Sleep", false, !dumpAll,
false, dumpPackage, true, " Activities waiting to sleep:", null);
return printed;
}
static boolean dumpHistoryList(FileDescriptor fd, PrintWriter pw, List<ActivityRecord> list,
String prefix, String label, boolean complete, boolean brief, boolean client,
String dumpPackage, boolean needNL, String header1, String header2) {
TaskRecord lastTask = null;
String innerPrefix = null;
String[] args = null;
boolean printed = false;
for (int i=list.size()-1; i>=0; i--) {
final ActivityRecord r = list.get(i);
if (dumpPackage != null && !dumpPackage.equals(r.packageName)) {
continue;
}
if (innerPrefix == null) {
innerPrefix = prefix + " ";
args = new String[0];
}
printed = true;
final boolean full = !brief && (complete || !r.isInHistory());
if (needNL) {
pw.println("");
needNL = false;
}
if (header1 != null) {
pw.println(header1);
header1 = null;
}
if (header2 != null) {
pw.println(header2);
header2 = null;
}
if (lastTask != r.getTask()) {
lastTask = r.getTask();
pw.print(prefix);
pw.print(full ? "* " : " ");
pw.println(lastTask);
if (full) {
lastTask.dump(pw, prefix + " ");
} else if (complete) {
// Complete + brief == give a summary. Isn't that obvious?!?
if (lastTask.intent != null) {
pw.print(prefix); pw.print(" ");
pw.println(lastTask.intent.toInsecureStringWithClip());
}
}
}
pw.print(prefix); pw.print(full ? " * " : " "); pw.print(label);
pw.print(" #"); pw.print(i); pw.print(": ");
pw.println(r);
if (full) {
r.dump(pw, innerPrefix);
} else if (complete) {
// Complete + brief == give a summary. Isn't that obvious?!?
pw.print(innerPrefix); pw.println(r.intent.toInsecureString());
if (r.app != null) {
pw.print(innerPrefix); pw.println(r.app);
}
}
if (client && r.app != null && r.app.thread != null) {
// flush anything that is already in the PrintWriter since the thread is going
// to write to the file descriptor directly
pw.flush();
try {
TransferPipe tp = new TransferPipe();
try {
r.app.thread.dumpActivity(tp.getWriteFd(), r.appToken, innerPrefix, args);
// Short timeout, since blocking here can
// deadlock with the application.
tp.go(fd, 2000);
} finally {
tp.kill();
}
} catch (IOException e) {
pw.println(innerPrefix + "Failure while dumping the activity: " + e);
} catch (RemoteException e) {
pw.println(innerPrefix + "Got a RemoteException while dumping the activity");
}
needNL = true;
}
}
return printed;
}
void scheduleIdleTimeoutLocked(ActivityRecord next) {
if (DEBUG_IDLE) Slog.d(TAG_IDLE,
"scheduleIdleTimeoutLocked: Callers=" + Debug.getCallers(4));
Message msg = mHandler.obtainMessage(IDLE_TIMEOUT_MSG, next);
mHandler.sendMessageDelayed(msg, IDLE_TIMEOUT);
}
final void scheduleIdleLocked() {
mHandler.sendEmptyMessage(IDLE_NOW_MSG);
}
void removeTimeoutsForActivityLocked(ActivityRecord r) {
if (DEBUG_IDLE) Slog.d(TAG_IDLE, "removeTimeoutsForActivity: Callers="
+ Debug.getCallers(4));
mHandler.removeMessages(IDLE_TIMEOUT_MSG, r);
}
final void scheduleResumeTopActivities() {
if (!mHandler.hasMessages(RESUME_TOP_ACTIVITY_MSG)) {
mHandler.sendEmptyMessage(RESUME_TOP_ACTIVITY_MSG);
}
}
void removeSleepTimeouts() {
mHandler.removeMessages(SLEEP_TIMEOUT_MSG);
}
final void scheduleSleepTimeout() {
removeSleepTimeouts();
mHandler.sendEmptyMessageDelayed(SLEEP_TIMEOUT_MSG, SLEEP_TIMEOUT);
}
@Override
public void onDisplayAdded(int displayId) {
if (DEBUG_STACK) Slog.v(TAG, "Display added displayId=" + displayId);
mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_ADDED, displayId, 0));
}
@Override
public void onDisplayRemoved(int displayId) {
if (DEBUG_STACK) Slog.v(TAG, "Display removed displayId=" + displayId);
mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_REMOVED, displayId, 0));
}
@Override
public void onDisplayChanged(int displayId) {
if (DEBUG_STACK) Slog.v(TAG, "Display changed displayId=" + displayId);
mHandler.sendMessage(mHandler.obtainMessage(HANDLE_DISPLAY_CHANGED, displayId, 0));
}
private void handleDisplayAdded(int displayId) {
synchronized (mService) {
getActivityDisplayOrCreateLocked(displayId);
}
}
/** Check if display with specified id is added to the list. */
boolean isDisplayAdded(int displayId) {
return getActivityDisplayOrCreateLocked(displayId) != null;
}
ActivityDisplay getActivityDisplay(int displayId) {
return mActivityDisplays.get(displayId);
}
/**
* Get an existing instance of {@link ActivityDisplay} or create new if there is a
* corresponding record in display manager.
*/
private ActivityDisplay getActivityDisplayOrCreateLocked(int displayId) {
ActivityDisplay activityDisplay = mActivityDisplays.get(displayId);
if (activityDisplay != null) {
return activityDisplay;
}
if (mDisplayManager == null) {
// The system isn't fully initialized yet.
return null;
}
final Display display = mDisplayManager.getDisplay(displayId);
if (display == null) {
// The display is not registered in DisplayManager.
return null;
}
// The display hasn't been added to ActivityManager yet, create a new record now.
activityDisplay = new ActivityDisplay(displayId);
if (activityDisplay.mDisplay == null) {
Slog.w(TAG, "Display " + displayId + " gone before initialization complete");
return null;
}
mActivityDisplays.put(displayId, activityDisplay);
calculateDefaultMinimalSizeOfResizeableTasks(activityDisplay);
mWindowManager.onDisplayAdded(displayId);
return activityDisplay;
}
private void calculateDefaultMinimalSizeOfResizeableTasks(ActivityDisplay display) {
mDefaultMinSizeOfResizeableTask =
mService.mContext.getResources().getDimensionPixelSize(
com.android.internal.R.dimen.default_minimal_size_resizable_task);
}
private void handleDisplayRemoved(int displayId) {
if (displayId == DEFAULT_DISPLAY) {
throw new IllegalArgumentException("Can't remove the primary display.");
}
synchronized (mService) {
ActivityDisplay activityDisplay = mActivityDisplays.get(displayId);
if (activityDisplay != null) {
final boolean destroyContentOnRemoval
= activityDisplay.shouldDestroyContentOnRemove();
final ArrayList<ActivityStack> stacks = activityDisplay.mStacks;
while (!stacks.isEmpty()) {
final ActivityStack stack = stacks.get(0);
if (destroyContentOnRemoval) {
moveStackToDisplayLocked(stack.mStackId, DEFAULT_DISPLAY,
false /* onTop */);
stack.finishAllActivitiesLocked(true /* immediately */);
} else {
// Moving all tasks to fullscreen stack, because it's guaranteed to be
// a valid launch stack for all activities. This way the task history from
// external display will be preserved on primary after move.
moveTasksToFullscreenStackLocked(stack.getStackId(), true /* onTop */);
}
}
releaseSleepTokens(activityDisplay);
mActivityDisplays.remove(displayId);
mWindowManager.onDisplayRemoved(displayId);
}
}
}
private void handleDisplayChanged(int displayId) {
synchronized (mService) {
ActivityDisplay activityDisplay = mActivityDisplays.get(displayId);
if (activityDisplay != null) {
// The window policy is responsible for stopping activities on the default display
if (displayId != Display.DEFAULT_DISPLAY) {
int displayState = activityDisplay.mDisplay.getState();
if (displayState == Display.STATE_OFF && activityDisplay.mOffToken == null) {
activityDisplay.mOffToken =
mService.acquireSleepToken("Display-off", displayId);
} else if (displayState == Display.STATE_ON
&& activityDisplay.mOffToken != null) {
activityDisplay.mOffToken.release();
activityDisplay.mOffToken = null;
}
}
// TODO: Update the bounds.
}
mWindowManager.onDisplayChanged(displayId);
}
}
SleepToken createSleepTokenLocked(String tag, int displayId) {
ActivityDisplay display = mActivityDisplays.get(displayId);
if (display == null) {
throw new IllegalArgumentException("Invalid display: " + displayId);
}
final SleepTokenImpl token = new SleepTokenImpl(tag, displayId);
mSleepTokens.add(token);
display.mAllSleepTokens.add(token);
return token;
}
private void removeSleepTokenLocked(SleepTokenImpl token) {
mSleepTokens.remove(token);
ActivityDisplay display = mActivityDisplays.get(token.mDisplayId);
if (display != null) {
display.mAllSleepTokens.remove(token);
if (display.mAllSleepTokens.isEmpty()) {
mService.updateSleepIfNeededLocked();
}
}
}
private void releaseSleepTokens(ActivityDisplay display) {
if (display.mAllSleepTokens.isEmpty()) {
return;
}
for (SleepTokenImpl token : display.mAllSleepTokens) {
mSleepTokens.remove(token);
}
display.mAllSleepTokens.clear();
mService.updateSleepIfNeededLocked();
}
private StackInfo getStackInfoLocked(ActivityStack stack) {
final int displayId = stack.mDisplayId;
final ActivityDisplay display = mActivityDisplays.get(displayId);
StackInfo info = new StackInfo();
stack.getWindowContainerBounds(info.bounds);
info.displayId = displayId;
info.stackId = stack.mStackId;
info.userId = stack.mCurrentUser;
info.visible = stack.shouldBeVisible(null) == STACK_VISIBLE;
// A stack might be not attached to a display.
info.position = display != null
? display.mStacks.indexOf(stack)
: 0;
ArrayList<TaskRecord> tasks = stack.getAllTasks();
final int numTasks = tasks.size();
int[] taskIds = new int[numTasks];
String[] taskNames = new String[numTasks];
Rect[] taskBounds = new Rect[numTasks];
int[] taskUserIds = new int[numTasks];
for (int i = 0; i < numTasks; ++i) {
final TaskRecord task = tasks.get(i);
taskIds[i] = task.taskId;
taskNames[i] = task.origActivity != null ? task.origActivity.flattenToString()
: task.realActivity != null ? task.realActivity.flattenToString()
: task.getTopActivity() != null ? task.getTopActivity().packageName
: "unknown";
taskBounds[i] = new Rect();
task.getWindowContainerBounds(taskBounds[i]);
taskUserIds[i] = task.userId;
}
info.taskIds = taskIds;
info.taskNames = taskNames;
info.taskBounds = taskBounds;
info.taskUserIds = taskUserIds;
final ActivityRecord top = stack.topRunningActivityLocked();
info.topActivity = top != null ? top.intent.getComponent() : null;
return info;
}
StackInfo getStackInfoLocked(int stackId) {
ActivityStack stack = getStack(stackId);
if (stack != null) {
return getStackInfoLocked(stack);
}
return null;
}
ArrayList<StackInfo> getAllStackInfosLocked() {
ArrayList<StackInfo> list = new ArrayList<>();
for (int displayNdx = 0; displayNdx < mActivityDisplays.size(); ++displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int ndx = stacks.size() - 1; ndx >= 0; --ndx) {
list.add(getStackInfoLocked(stacks.get(ndx)));
}
}
return list;
}
TaskRecord getLockedTaskLocked() {
final int top = mLockTaskModeTasks.size() - 1;
if (top >= 0) {
return mLockTaskModeTasks.get(top);
}
return null;
}
boolean isLockedTask(TaskRecord task) {
return mLockTaskModeTasks.contains(task);
}
boolean isLastLockedTask(TaskRecord task) {
return mLockTaskModeTasks.size() == 1 && mLockTaskModeTasks.contains(task);
}
void removeLockedTaskLocked(final TaskRecord task) {
if (!mLockTaskModeTasks.remove(task)) {
return;
}
if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK, "removeLockedTaskLocked: removed " + task);
if (mLockTaskModeTasks.isEmpty()) {
// Last one.
if (DEBUG_LOCKTASK) Slog.d(TAG_LOCKTASK, "removeLockedTask: task=" + task +
" last task, reverting locktask mode. Callers=" + Debug.getCallers(3));
final Message lockTaskMsg = Message.obtain();
lockTaskMsg.arg1 = task.userId;
lockTaskMsg.what = LOCK_TASK_END_MSG;
mHandler.sendMessage(lockTaskMsg);
}
}
void handleNonResizableTaskIfNeeded(TaskRecord task, int preferredStackId,
int preferredDisplayId, int actualStackId) {
handleNonResizableTaskIfNeeded(task, preferredStackId, preferredDisplayId, actualStackId,
false /* forceNonResizable */);
}
private void handleNonResizableTaskIfNeeded(TaskRecord task, int preferredStackId,
int preferredDisplayId, int actualStackId, boolean forceNonResizable) {
final boolean isSecondaryDisplayPreferred =
(preferredDisplayId != DEFAULT_DISPLAY && preferredDisplayId != INVALID_DISPLAY)
|| StackId.isDynamicStack(preferredStackId);
if (((!isStackDockedInEffect(actualStackId) && preferredStackId != DOCKED_STACK_ID)
&& !isSecondaryDisplayPreferred) || task.isHomeTask()) {
return;
}
// Handle incorrect launch/move to secondary display if needed.
final boolean launchOnSecondaryDisplayFailed;
if (isSecondaryDisplayPreferred) {
final int actualDisplayId = task.getStack().mDisplayId;
if (!task.canBeLaunchedOnDisplay(actualDisplayId)) {
// The task landed on an inappropriate display somehow, move it to the default
// display.
// TODO(multi-display): Find proper stack for the task on the default display.
mService.moveTaskToStack(task.taskId, FULLSCREEN_WORKSPACE_STACK_ID,
true /* toTop */);
launchOnSecondaryDisplayFailed = true;
} else {
// The task might have landed on a display different from requested.
launchOnSecondaryDisplayFailed = actualDisplayId == DEFAULT_DISPLAY
|| (preferredDisplayId != INVALID_DISPLAY
&& preferredDisplayId != actualDisplayId);
}
} else {
// The task wasn't requested to be on a secondary display.
launchOnSecondaryDisplayFailed = false;
}
final ActivityRecord topActivity = task.getTopActivity();
if (launchOnSecondaryDisplayFailed || !task.supportsSplitScreen() || forceNonResizable) {
if (launchOnSecondaryDisplayFailed) {
// Display a warning toast that we tried to put a non-resizeable task on a secondary
// display with config different from global config.
mService.mTaskChangeNotificationController
.notifyActivityLaunchOnSecondaryDisplayFailed();
} else {
// Display a warning toast that we tried to put a non-dockable task in the docked
// stack.
mService.mTaskChangeNotificationController.notifyActivityDismissingDockedStack();
}
// Dismiss docked stack. If task appeared to be in docked stack but is not resizable -
// we need to move it to top of fullscreen stack, otherwise it will be covered.
moveTasksToFullscreenStackLocked(DOCKED_STACK_ID, actualStackId == DOCKED_STACK_ID);
} else if (topActivity != null && topActivity.isNonResizableOrForcedResizable()
&& !topActivity.noDisplay) {
final String packageName = topActivity.appInfo.packageName;
final int reason = isSecondaryDisplayPreferred
? FORCED_RESIZEABLE_REASON_SECONDARY_DISPLAY
: FORCED_RESIZEABLE_REASON_SPLIT_SCREEN;
mService.mTaskChangeNotificationController.notifyActivityForcedResizable(
task.taskId, reason, packageName);
}
}
void showLockTaskToast() {
if (mLockTaskNotify != null) {
mLockTaskNotify.showToast(mLockTaskModeState);
}
}
void showLockTaskEscapeMessageLocked(TaskRecord task) {
if (mLockTaskModeTasks.contains(task)) {
mHandler.sendEmptyMessage(SHOW_LOCK_TASK_ESCAPE_MESSAGE_MSG);
}
}
void setLockTaskModeLocked(TaskRecord task, int lockTaskModeState, String reason,
boolean andResume) {
if (task == null) {
// Take out of lock task mode if necessary
final TaskRecord lockedTask = getLockedTaskLocked();
if (lockedTask != null) {
removeLockedTaskLocked(lockedTask);
if (!mLockTaskModeTasks.isEmpty()) {
// There are locked tasks remaining, can only finish this task, not unlock it.
if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK,
"setLockTaskModeLocked: Tasks remaining, can't unlock");
lockedTask.performClearTaskLocked();
resumeFocusedStackTopActivityLocked();
return;
}
}
if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK,
"setLockTaskModeLocked: No tasks to unlock. Callers=" + Debug.getCallers(4));
return;
}
// Should have already been checked, but do it again.
if (task.mLockTaskAuth == LOCK_TASK_AUTH_DONT_LOCK) {
if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK,
"setLockTaskModeLocked: Can't lock due to auth");
return;
}
if (isLockTaskModeViolation(task)) {
Slog.e(TAG_LOCKTASK, "setLockTaskMode: Attempt to start an unauthorized lock task.");
return;
}
if (mLockTaskModeTasks.isEmpty()) {
// First locktask.
final Message lockTaskMsg = Message.obtain();
lockTaskMsg.obj = task.intent.getComponent().getPackageName();
lockTaskMsg.arg1 = task.userId;
lockTaskMsg.what = LOCK_TASK_START_MSG;
lockTaskMsg.arg2 = lockTaskModeState;
mHandler.sendMessage(lockTaskMsg);
}
// Add it or move it to the top.
if (DEBUG_LOCKTASK) Slog.w(TAG_LOCKTASK, "setLockTaskModeLocked: Locking to " + task +
" Callers=" + Debug.getCallers(4));
mLockTaskModeTasks.remove(task);
mLockTaskModeTasks.add(task);
if (task.mLockTaskUid == -1) {
task.mLockTaskUid = task.effectiveUid;
}
if (andResume) {
findTaskToMoveToFrontLocked(task, 0, null, reason,
lockTaskModeState != LOCK_TASK_MODE_NONE);
resumeFocusedStackTopActivityLocked();
mWindowManager.executeAppTransition();
} else if (lockTaskModeState != LOCK_TASK_MODE_NONE) {
handleNonResizableTaskIfNeeded(task, INVALID_STACK_ID, DEFAULT_DISPLAY,
task.getStackId(), true /* forceNonResizable */);
}
}
boolean isLockTaskModeViolation(TaskRecord task) {
return isLockTaskModeViolation(task, false);
}
boolean isLockTaskModeViolation(TaskRecord task, boolean isNewClearTask) {
if (getLockedTaskLocked() == task && !isNewClearTask) {
return false;
}
final int lockTaskAuth = task.mLockTaskAuth;
switch (lockTaskAuth) {
case LOCK_TASK_AUTH_DONT_LOCK:
return !mLockTaskModeTasks.isEmpty();
case LOCK_TASK_AUTH_LAUNCHABLE_PRIV:
case LOCK_TASK_AUTH_LAUNCHABLE:
case LOCK_TASK_AUTH_WHITELISTED:
return false;
case LOCK_TASK_AUTH_PINNABLE:
// Pinnable tasks can't be launched on top of locktask tasks.
return !mLockTaskModeTasks.isEmpty();
default:
Slog.w(TAG, "isLockTaskModeViolation: invalid lockTaskAuth value=" + lockTaskAuth);
return true;
}
}
void onLockTaskPackagesUpdatedLocked() {
boolean didSomething = false;
for (int taskNdx = mLockTaskModeTasks.size() - 1; taskNdx >= 0; --taskNdx) {
final TaskRecord lockedTask = mLockTaskModeTasks.get(taskNdx);
final boolean wasWhitelisted =
(lockedTask.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE) ||
(lockedTask.mLockTaskAuth == LOCK_TASK_AUTH_WHITELISTED);
lockedTask.setLockTaskAuth();
final boolean isWhitelisted =
(lockedTask.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE) ||
(lockedTask.mLockTaskAuth == LOCK_TASK_AUTH_WHITELISTED);
if (wasWhitelisted && !isWhitelisted) {
// Lost whitelisting authorization. End it now.
if (DEBUG_LOCKTASK) Slog.d(TAG_LOCKTASK, "onLockTaskPackagesUpdated: removing " +
lockedTask + " mLockTaskAuth=" + lockedTask.lockTaskAuthToString());
removeLockedTaskLocked(lockedTask);
lockedTask.performClearTaskLocked();
didSomething = true;
}
}
for (int displayNdx = mActivityDisplays.size() - 1; displayNdx >= 0; --displayNdx) {
ArrayList<ActivityStack> stacks = mActivityDisplays.valueAt(displayNdx).mStacks;
for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) {
final ActivityStack stack = stacks.get(stackNdx);
stack.onLockTaskPackagesUpdatedLocked();
}
}
final ActivityRecord r = topRunningActivityLocked();
final TaskRecord task = r != null ? r.getTask() : null;
if (mLockTaskModeTasks.isEmpty() && task != null
&& task.mLockTaskAuth == LOCK_TASK_AUTH_LAUNCHABLE) {
// This task must have just been authorized.
if (DEBUG_LOCKTASK) Slog.d(TAG_LOCKTASK,
"onLockTaskPackagesUpdated: starting new locktask task=" + task);
setLockTaskModeLocked(task, ActivityManager.LOCK_TASK_MODE_LOCKED, "package updated",
false);
didSomething = true;
}
if (didSomething) {
resumeFocusedStackTopActivityLocked();
}
}
int getLockTaskModeState() {
return mLockTaskModeState;
}
void activityRelaunchedLocked(IBinder token) {
mWindowManager.notifyAppRelaunchingFinished(token);
final ActivityRecord r = ActivityRecord.isInStackLocked(token);
if (r != null) {
if (r.getStack().shouldSleepOrShutDownActivities()) {
r.setSleeping(true, true);
}
}
}
void activityRelaunchingLocked(ActivityRecord r) {
mWindowManager.notifyAppRelaunching(r.appToken);
}
void logStackState() {
mActivityMetricsLogger.logWindowState();
}
void scheduleUpdateMultiWindowMode(TaskRecord task) {
// If the stack is animating in a way where we will be forcing a multi-mode change at the
// end, then ensure that we defer all in between multi-window mode changes
if (task.getStack().deferScheduleMultiWindowModeChanged()) {
return;
}
for (int i = task.mActivities.size() - 1; i >= 0; i--) {
final ActivityRecord r = task.mActivities.get(i);
if (r.app != null && r.app.thread != null) {
mMultiWindowModeChangedActivities.add(r);
}
}
if (!mHandler.hasMessages(REPORT_MULTI_WINDOW_MODE_CHANGED_MSG)) {
mHandler.sendEmptyMessage(REPORT_MULTI_WINDOW_MODE_CHANGED_MSG);
}
}
void scheduleUpdatePictureInPictureModeIfNeeded(TaskRecord task, ActivityStack prevStack) {
final ActivityStack stack = task.getStack();
if (prevStack == null || prevStack == stack
|| (prevStack.mStackId != PINNED_STACK_ID && stack.mStackId != PINNED_STACK_ID)) {
return;
}
scheduleUpdatePictureInPictureModeIfNeeded(task, stack.mBounds);
}
void scheduleUpdatePictureInPictureModeIfNeeded(TaskRecord task, Rect targetStackBounds) {
for (int i = task.mActivities.size() - 1; i >= 0; i--) {
final ActivityRecord r = task.mActivities.get(i);
if (r.app != null && r.app.thread != null) {
mPipModeChangedActivities.add(r);
}
}
mPipModeChangedTargetStackBounds = targetStackBounds;
if (!mHandler.hasMessages(REPORT_PIP_MODE_CHANGED_MSG)) {
mHandler.sendEmptyMessage(REPORT_PIP_MODE_CHANGED_MSG);
}
}
void updatePictureInPictureMode(TaskRecord task, Rect targetStackBounds, boolean forceUpdate) {
mHandler.removeMessages(REPORT_PIP_MODE_CHANGED_MSG);
for (int i = task.mActivities.size() - 1; i >= 0; i--) {
final ActivityRecord r = task.mActivities.get(i);
if (r.app != null && r.app.thread != null) {
r.updatePictureInPictureMode(targetStackBounds, forceUpdate);
}
}
}
void setDockedStackMinimized(boolean minimized) {
mIsDockMinimized = minimized;
}
void wakeUp(String reason) {
mPowerManager.wakeUp(SystemClock.uptimeMillis(), "android.server.am:TURN_ON:" + reason);
}
/**
* Begin deferring resume to avoid duplicate resumes in one pass.
*/
private void beginDeferResume() {
mDeferResumeCount++;
}
/**
* End deferring resume and determine if resume can be called.
*/
private void endDeferResume() {
mDeferResumeCount--;
}
/**
* @return True if resume can be called.
*/
private boolean readyToResume() {
return mDeferResumeCount == 0;
}
private final class ActivityStackSupervisorHandler extends Handler {
public ActivityStackSupervisorHandler(Looper looper) {
super(looper);
}
void activityIdleInternal(ActivityRecord r, boolean processPausingActivities) {
synchronized (mService) {
activityIdleInternalLocked(r != null ? r.appToken : null, true /* fromTimeout */,
processPausingActivities, null);
}
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case REPORT_MULTI_WINDOW_MODE_CHANGED_MSG: {
synchronized (mService) {
for (int i = mMultiWindowModeChangedActivities.size() - 1; i >= 0; i--) {
final ActivityRecord r = mMultiWindowModeChangedActivities.remove(i);
r.updateMultiWindowMode();
}
}
} break;
case REPORT_PIP_MODE_CHANGED_MSG: {
synchronized (mService) {
for (int i = mPipModeChangedActivities.size() - 1; i >= 0; i--) {
final ActivityRecord r = mPipModeChangedActivities.remove(i);
r.updatePictureInPictureMode(mPipModeChangedTargetStackBounds,
false /* forceUpdate */);
}
}
} break;
case IDLE_TIMEOUT_MSG: {
if (DEBUG_IDLE) Slog.d(TAG_IDLE,
"handleMessage: IDLE_TIMEOUT_MSG: r=" + msg.obj);
// We don't at this point know if the activity is fullscreen,
// so we need to be conservative and assume it isn't.
activityIdleInternal((ActivityRecord) msg.obj,
true /* processPausingActivities */);
} break;
case IDLE_NOW_MSG: {
if (DEBUG_IDLE) Slog.d(TAG_IDLE, "handleMessage: IDLE_NOW_MSG: r=" + msg.obj);
activityIdleInternal((ActivityRecord) msg.obj,
false /* processPausingActivities */);
} break;
case RESUME_TOP_ACTIVITY_MSG: {
synchronized (mService) {
resumeFocusedStackTopActivityLocked();
}
} break;
case SLEEP_TIMEOUT_MSG: {
synchronized (mService) {
if (mService.isSleepingOrShuttingDownLocked()) {
Slog.w(TAG, "Sleep timeout! Sleeping now.");
checkReadyForSleepLocked(false /* allowDelay */);
}
}
} break;
case LAUNCH_TIMEOUT_MSG: {
synchronized (mService) {
if (mLaunchingActivity.isHeld()) {
Slog.w(TAG, "Launch timeout has expired, giving up wake lock!");
if (VALIDATE_WAKE_LOCK_CALLER
&& Binder.getCallingUid() != Process.myUid()) {
throw new IllegalStateException("Calling must be system uid");
}
mLaunchingActivity.release();
}
}
} break;
case HANDLE_DISPLAY_ADDED: {
handleDisplayAdded(msg.arg1);
} break;
case HANDLE_DISPLAY_CHANGED: {
handleDisplayChanged(msg.arg1);
} break;
case HANDLE_DISPLAY_REMOVED: {
handleDisplayRemoved(msg.arg1);
} break;
case LOCK_TASK_START_MSG: {
// When lock task starts, we disable the status bars.
try {
if (mLockTaskNotify == null) {
mLockTaskNotify = new LockTaskNotify(mService.mContext);
}
mLockTaskNotify.show(true);
mLockTaskModeState = msg.arg2;
if (getStatusBarService() != null) {
int flags = 0;
if (mLockTaskModeState == LOCK_TASK_MODE_LOCKED) {
flags = StatusBarManager.DISABLE_MASK
& (~StatusBarManager.DISABLE_BACK);
} else if (mLockTaskModeState == LOCK_TASK_MODE_PINNED) {
flags = StatusBarManager.DISABLE_MASK
& (~StatusBarManager.DISABLE_BACK)
& (~StatusBarManager.DISABLE_HOME)
& (~StatusBarManager.DISABLE_RECENT);
}
getStatusBarService().disable(flags, mToken,
mService.mContext.getPackageName());
}
mWindowManager.disableKeyguard(mToken, LOCK_TASK_TAG);
if (getDevicePolicyManager() != null) {
getDevicePolicyManager().notifyLockTaskModeChanged(true,
(String)msg.obj, msg.arg1);
}
} catch (RemoteException ex) {
throw new RuntimeException(ex);
}
} break;
case LOCK_TASK_END_MSG: {
// When lock task ends, we enable the status bars.
try {
if (getStatusBarService() != null) {
getStatusBarService().disable(StatusBarManager.DISABLE_NONE, mToken,
mService.mContext.getPackageName());
}
mWindowManager.reenableKeyguard(mToken);
if (getDevicePolicyManager() != null) {
getDevicePolicyManager().notifyLockTaskModeChanged(false, null,
msg.arg1);
}
if (mLockTaskNotify == null) {
mLockTaskNotify = new LockTaskNotify(mService.mContext);
}
mLockTaskNotify.show(false);
try {
boolean shouldLockKeyguard = Settings.Secure.getIntForUser(
mService.mContext.getContentResolver(),
Settings.Secure.LOCK_TO_APP_EXIT_LOCKED,
UserHandle.USER_CURRENT) != 0;
if (mLockTaskModeState == LOCK_TASK_MODE_PINNED && shouldLockKeyguard) {
mWindowManager.lockNow(null);
mWindowManager.dismissKeyguard(null /* callback */);
new LockPatternUtils(mService.mContext)
.requireCredentialEntry(UserHandle.USER_ALL);
}
} catch (SettingNotFoundException e) {
// No setting, don't lock.
}
} catch (RemoteException ex) {
throw new RuntimeException(ex);
} finally {
mLockTaskModeState = LOCK_TASK_MODE_NONE;
}
} break;
case SHOW_LOCK_TASK_ESCAPE_MESSAGE_MSG: {
if (mLockTaskNotify == null) {
mLockTaskNotify = new LockTaskNotify(mService.mContext);
}
mLockTaskNotify.showToast(LOCK_TASK_MODE_PINNED);
} break;
case LAUNCH_TASK_BEHIND_COMPLETE: {
synchronized (mService) {
ActivityRecord r = ActivityRecord.forTokenLocked((IBinder) msg.obj);
if (r != null) {
handleLaunchTaskBehindCompleteLocked(r);
}
}
} break;
}
}
}
// TODO: Move to its own file.
/** Exactly one of these classes per Display in the system. Capable of holding zero or more
* attached {@link ActivityStack}s */
class ActivityDisplay extends ConfigurationContainer {
/** Actual Display this object tracks. */
int mDisplayId;
Display mDisplay;
/** All of the stacks on this display. Order matters, topmost stack is in front of all other
* stacks, bottommost behind. Accessed directly by ActivityManager package classes */
final ArrayList<ActivityStack> mStacks = new ArrayList<>();
/** Array of all UIDs that are present on the display. */
private IntArray mDisplayAccessUIDs = new IntArray();
/** All tokens used to put activities on this stack to sleep (including mOffToken) */
final ArrayList<SleepTokenImpl> mAllSleepTokens = new ArrayList<>();
/** The token acquired by ActivityStackSupervisor to put stacks on the display to sleep */
SleepToken mOffToken;
private boolean mSleeping;
@VisibleForTesting
ActivityDisplay() {
mActivityDisplays.put(mDisplayId, this);
}
// After instantiation, check that mDisplay is not null before using this. The alternative
// is for this to throw an exception if mDisplayManager.getDisplay() returns null.
ActivityDisplay(int displayId) {
final Display display = mDisplayManager.getDisplay(displayId);
if (display == null) {
return;
}
init(display);
}
void init(Display display) {
mDisplay = display;
mDisplayId = display.getDisplayId();
}
void attachStack(ActivityStack stack, int position) {
if (DEBUG_STACK) Slog.v(TAG_STACK, "attachStack: attaching " + stack
+ " to displayId=" + mDisplayId + " position=" + position);
mStacks.add(position, stack);
mService.updateSleepIfNeededLocked();
}
void detachStack(ActivityStack stack) {
if (DEBUG_STACK) Slog.v(TAG_STACK, "detachStack: detaching " + stack
+ " from displayId=" + mDisplayId);
mStacks.remove(stack);
mService.updateSleepIfNeededLocked();
}
@Override
public String toString() {
return "ActivityDisplay={" + mDisplayId + " numStacks=" + mStacks.size() + "}";
}
@Override
protected int getChildCount() {
return mStacks.size();
}
@Override
protected ConfigurationContainer getChildAt(int index) {
return mStacks.get(index);
}
@Override
protected ConfigurationContainer getParent() {
return ActivityStackSupervisor.this;
}
boolean isPrivate() {
return (mDisplay.getFlags() & FLAG_PRIVATE) != 0;
}
boolean isUidPresent(int uid) {
for (ActivityStack stack : mStacks) {
if (stack.isUidPresent(uid)) {
return true;
}
}
return false;
}
/** Update and get all UIDs that are present on the display and have access to it. */
private IntArray getPresentUIDs() {
mDisplayAccessUIDs.clear();
for (ActivityStack stack : mStacks) {
stack.getPresentUIDs(mDisplayAccessUIDs);
}
return mDisplayAccessUIDs;
}
boolean shouldDestroyContentOnRemove() {
return mDisplay.getRemoveMode() == REMOVE_MODE_DESTROY_CONTENT;
}
boolean shouldSleep() {
return (mStacks.isEmpty() || !mAllSleepTokens.isEmpty())
&& (mService.mRunningVoice == null);
}
boolean isSleeping() {
return mSleeping;
}
void setIsSleeping(boolean asleep) {
mSleeping = asleep;
}
}
ActivityStack findStackBehind(ActivityStack stack) {
// TODO(multi-display): We are only looking for stacks on the default display.
final ActivityDisplay display = mActivityDisplays.get(DEFAULT_DISPLAY);
if (display == null) {
return null;
}
final ArrayList<ActivityStack> stacks = display.mStacks;
for (int i = stacks.size() - 1; i >= 0; i--) {
if (stacks.get(i) == stack && i > 0) {
return stacks.get(i - 1);
}
}
throw new IllegalStateException("Failed to find a stack behind stack=" + stack
+ " in=" + stacks);
}
/**
* Puts a task into resizing mode during the next app transition.
*
* @param task The task to put into resizing mode
*/
private void setResizingDuringAnimation(TaskRecord task) {
mResizingTasksDuringAnimation.add(task.taskId);
task.setTaskDockedResizing(true);
}
final int startActivityFromRecentsInner(int taskId, Bundle bOptions) {
final TaskRecord task;
final int callingUid;
final String callingPackage;
final Intent intent;
final int userId;
final ActivityOptions activityOptions = (bOptions != null)
? new ActivityOptions(bOptions) : null;
final int launchStackId = (activityOptions != null)
? activityOptions.getLaunchStackId() : INVALID_STACK_ID;
if (StackId.isHomeOrRecentsStack(launchStackId)) {
throw new IllegalArgumentException("startActivityFromRecentsInner: Task "
+ taskId + " can't be launch in the home/recents stack.");
}
mWindowManager.deferSurfaceLayout();
try {
if (launchStackId == DOCKED_STACK_ID) {
mWindowManager.setDockedStackCreateState(
activityOptions.getDockCreateMode(), null /* initialBounds */);
// Defer updating the stack in which recents is until the app transition is done, to
// not run into issues where we still need to draw the task in recents but the
// docked stack is already created.
deferUpdateBounds(RECENTS_STACK_ID);
mWindowManager.prepareAppTransition(TRANSIT_DOCK_TASK_FROM_RECENTS, false);
}
task = anyTaskForIdLocked(taskId, MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE,
launchStackId);
if (task == null) {
continueUpdateBounds(RECENTS_STACK_ID);
mWindowManager.executeAppTransition();
throw new IllegalArgumentException(
"startActivityFromRecentsInner: Task " + taskId + " not found.");
}
// Since we don't have an actual source record here, we assume that the currently
// focused activity was the source.
final ActivityStack focusedStack = getFocusedStack();
final ActivityRecord sourceRecord =
focusedStack != null ? focusedStack.topActivity() : null;
if (launchStackId != INVALID_STACK_ID) {
if (task.getStackId() != launchStackId) {
task.reparent(launchStackId, ON_TOP, REPARENT_MOVE_STACK_TO_FRONT, ANIMATE,
DEFER_RESUME, "startActivityFromRecents");
}
}
// If the user must confirm credentials (e.g. when first launching a work app and the
// Work Challenge is present) let startActivityInPackage handle the intercepting.
if (!mService.mUserController.shouldConfirmCredentials(task.userId)
&& task.getRootActivity() != null) {
final ActivityRecord targetActivity = task.getTopActivity();
mService.mActivityStarter.sendPowerHintForLaunchStartIfNeeded(true /* forceSend */,
targetActivity);
mActivityMetricsLogger.notifyActivityLaunching();
try {
mService.moveTaskToFrontLocked(task.taskId, 0, bOptions,
true /* fromRecents */);
} finally {
mActivityMetricsLogger.notifyActivityLaunched(START_TASK_TO_FRONT,
targetActivity);
}
// If we are launching the task in the docked stack, put it into resizing mode so
// the window renders full-screen with the background filling the void. Also only
// call this at the end to make sure that tasks exists on the window manager side.
if (launchStackId == DOCKED_STACK_ID) {
setResizingDuringAnimation(task);
}
mService.mActivityStarter.postStartActivityProcessing(task.getTopActivity(),
ActivityManager.START_TASK_TO_FRONT,
sourceRecord != null
? sourceRecord.getTask().getStackId() : INVALID_STACK_ID,
sourceRecord, task.getStack());
return ActivityManager.START_TASK_TO_FRONT;
}
callingUid = task.mCallingUid;
callingPackage = task.mCallingPackage;
intent = task.intent;
intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY);
userId = task.userId;
int result = mService.startActivityInPackage(callingUid, callingPackage, intent, null,
null, null, 0, 0, bOptions, userId, task, "startActivityFromRecents");
if (launchStackId == DOCKED_STACK_ID) {
setResizingDuringAnimation(task);
}
return result;
} finally {
mWindowManager.continueSurfaceLayout();
}
}
/**
* @return a list of activities which are the top ones in each visible stack. The first
* entry will be the focused activity.
*/
List<IBinder> getTopVisibleActivities() {
final ArrayList<IBinder> topActivityTokens = new ArrayList<>();
// Traverse all displays.
for (int i = mActivityDisplays.size() - 1; i >= 0; i--) {
final ActivityDisplay display = mActivityDisplays.valueAt(i);
// Traverse all stacks on a display.
for (int j = display.mStacks.size() - 1; j >= 0; j--) {
final ActivityStack stack = display.mStacks.get(j);
// Get top activity from a visible stack and add it to the list.
if (stack.shouldBeVisible(null /* starting */)
== ActivityStack.STACK_VISIBLE) {
final ActivityRecord top = stack.topActivity();
if (top != null) {
if (stack == mFocusedStack) {
topActivityTokens.add(0, top.appToken);
} else {
topActivityTokens.add(top.appToken);
}
}
}
}
}
return topActivityTokens;
}
/**
* Internal container to store a match qualifier alongside a WaitResult.
*/
static class WaitInfo {
private final ComponentName mTargetComponent;
private final WaitResult mResult;
public WaitInfo(ComponentName targetComponent, WaitResult result) {
this.mTargetComponent = targetComponent;
this.mResult = result;
}
public boolean matches(ComponentName targetComponent) {
return mTargetComponent == null || mTargetComponent.equals(targetComponent);
}
public WaitResult getResult() {
return mResult;
}
public ComponentName getComponent() {
return mTargetComponent;
}
public void dump(PrintWriter pw, String prefix) {
pw.println(prefix + "WaitInfo:");
pw.println(prefix + " mTargetComponent=" + mTargetComponent);
pw.println(prefix + " mResult=");
mResult.dump(pw, prefix);
}
}
private final class SleepTokenImpl extends SleepToken {
private final String mTag;
private final long mAcquireTime;
private final int mDisplayId;
public SleepTokenImpl(String tag, int displayId) {
mTag = tag;
mDisplayId = displayId;
mAcquireTime = SystemClock.uptimeMillis();
}
@Override
public void release() {
synchronized (mService) {
removeSleepTokenLocked(this);
}
}
@Override
public String toString() {
return "{\"" + mTag + "\", display " + mDisplayId
+ ", acquire at " + TimeUtils.formatUptime(mAcquireTime) + "}";
}
}
}