| /* |
| * Copyright (C) 2006 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 com.android.server.am.ActivityManagerService.TAG; |
| import static com.android.server.am.ActivityRecord.HOME_ACTIVITY_TYPE; |
| import static com.android.server.am.ActivityRecord.APPLICATION_ACTIVITY_TYPE; |
| import static com.android.server.am.ActivityRecord.RECENTS_ACTIVITY_TYPE; |
| import static com.android.server.am.ActivityStackSupervisor.DEBUG_ADD_REMOVE; |
| |
| import android.app.Activity; |
| import android.app.ActivityManager; |
| import android.app.ActivityManager.TaskThumbnail; |
| import android.app.ActivityOptions; |
| import android.content.ComponentName; |
| import android.content.Intent; |
| import android.content.pm.ActivityInfo; |
| import android.graphics.Bitmap; |
| import android.os.ParcelFileDescriptor; |
| import android.os.UserHandle; |
| import android.service.voice.IVoiceInteractionSession; |
| import android.util.Slog; |
| import com.android.internal.app.IVoiceInteractor; |
| import com.android.internal.util.XmlUtils; |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| |
| final class TaskRecord { |
| private static final String ATTR_TASKID = "task_id"; |
| private static final String TAG_INTENT = "intent"; |
| private static final String TAG_AFFINITYINTENT = "affinity_intent"; |
| private static final String ATTR_REALACTIVITY = "real_activity"; |
| private static final String ATTR_ORIGACTIVITY = "orig_activity"; |
| private static final String TAG_ACTIVITY = "activity"; |
| private static final String ATTR_AFFINITY = "affinity"; |
| private static final String ATTR_ROOTHASRESET = "root_has_reset"; |
| private static final String ATTR_AUTOREMOVERECENTS = "auto_remove_recents"; |
| private static final String ATTR_ASKEDCOMPATMODE = "asked_compat_mode"; |
| private static final String ATTR_USERID = "user_id"; |
| private static final String ATTR_TASKTYPE = "task_type"; |
| private static final String ATTR_FIRSTACTIVETIME = "first_active_time"; |
| private static final String ATTR_LASTACTIVETIME = "last_active_time"; |
| private static final String ATTR_LASTDESCRIPTION = "last_description"; |
| private static final String ATTR_LASTTIMEMOVED = "last_time_moved"; |
| private static final String ATTR_NEVERRELINQUISH = "never_relinquish_identity"; |
| private static final String ATTR_TASKDESCRIPTIONLABEL = "task_description_label"; |
| private static final String ATTR_TASKDESCRIPTIONCOLOR = "task_description_color"; |
| private static final String ATTR_TASK_AFFILIATION = "task_affiliation"; |
| private static final String ATTR_PREV_AFFILIATION = "prev_affiliation"; |
| private static final String ATTR_NEXT_AFFILIATION = "next_affiliation"; |
| private static final String ATTR_TASK_AFFILIATION_COLOR = "task_affiliation_color"; |
| private static final String ATTR_CALLING_UID = "calling_uid"; |
| private static final String ATTR_CALLING_PACKAGE = "calling_package"; |
| private static final String LAST_ACTIVITY_ICON_SUFFIX = "_last_activity_icon_"; |
| |
| private static final String TASK_THUMBNAIL_SUFFIX = "_task_thumbnail"; |
| |
| static final boolean IGNORE_RETURN_TO_RECENTS = true; |
| |
| final int taskId; // Unique identifier for this task. |
| String affinity; // The affinity name for this task, or null. |
| final IVoiceInteractionSession voiceSession; // Voice interaction session driving task |
| final IVoiceInteractor voiceInteractor; // Associated interactor to provide to app |
| Intent intent; // The original intent that started the task. |
| Intent affinityIntent; // Intent of affinity-moved activity that started this task. |
| ComponentName origActivity; // The non-alias activity component of the intent. |
| ComponentName realActivity; // The actual activity component that started the task. |
| long firstActiveTime; // First time this task was active. |
| long lastActiveTime; // Last time this task was active, including sleep. |
| boolean rootWasReset; // True if the intent at the root of the task had |
| // the FLAG_ACTIVITY_RESET_TASK_IF_NEEDED flag. |
| boolean autoRemoveRecents; // If true, we should automatically remove the task from |
| // recents when activity finishes |
| boolean askedCompatMode;// Have asked the user about compat mode for this task. |
| boolean hasBeenVisible; // Set if any activities in the task have been visible to the user. |
| |
| String stringName; // caching of toString() result. |
| int userId; // user for which this task was created |
| int creatorUid; // The app uid that originally created the task |
| |
| int numFullscreen; // Number of fullscreen activities. |
| |
| // This represents the last resolved activity values for this task |
| // NOTE: This value needs to be persisted with each task |
| ActivityManager.TaskDescription lastTaskDescription = |
| new ActivityManager.TaskDescription(); |
| |
| /** List of all activities in the task arranged in history order */ |
| final ArrayList<ActivityRecord> mActivities; |
| |
| /** Current stack */ |
| ActivityStack stack; |
| |
| /** Takes on same set of values as ActivityRecord.mActivityType */ |
| int taskType; |
| |
| /** Takes on same value as first root activity */ |
| boolean isPersistable = false; |
| int maxRecents; |
| |
| /** Only used for persistable tasks, otherwise 0. The last time this task was moved. Used for |
| * determining the order when restoring. Sign indicates whether last task movement was to front |
| * (positive) or back (negative). Absolute value indicates time. */ |
| long mLastTimeMoved = System.currentTimeMillis(); |
| |
| /** Indication of what to run next when task exits. Use ActivityRecord types. |
| * ActivityRecord.APPLICATION_ACTIVITY_TYPE indicates to resume the task below this one in the |
| * task stack. */ |
| private int mTaskToReturnTo = APPLICATION_ACTIVITY_TYPE; |
| |
| /** If original intent did not allow relinquishing task identity, save that information */ |
| boolean mNeverRelinquishIdentity = true; |
| |
| // Used in the unique case where we are clearing the task in order to reuse it. In that case we |
| // do not want to delete the stack when the task goes empty. |
| boolean mReuseTask = false; |
| |
| private Bitmap mLastThumbnail; // Last thumbnail captured for this item. |
| private final File mLastThumbnailFile; // File containing last thubmnail. |
| private final String mFilename; |
| CharSequence lastDescription; // Last description captured for this item. |
| |
| int mAffiliatedTaskId; // taskId of parent affiliation or self if no parent. |
| int mAffiliatedTaskColor; // color of the parent task affiliation. |
| TaskRecord mPrevAffiliate; // previous task in affiliated chain. |
| int mPrevAffiliateTaskId = -1; // previous id for persistence. |
| TaskRecord mNextAffiliate; // next task in affiliated chain. |
| int mNextAffiliateTaskId = -1; // next id for persistence. |
| |
| // For relaunching the task from recents as though it was launched by the original launcher. |
| int mCallingUid; |
| String mCallingPackage; |
| |
| final ActivityManagerService mService; |
| |
| TaskRecord(ActivityManagerService service, int _taskId, ActivityInfo info, Intent _intent, |
| IVoiceInteractionSession _voiceSession, IVoiceInteractor _voiceInteractor) { |
| mService = service; |
| mFilename = String.valueOf(_taskId) + TASK_THUMBNAIL_SUFFIX + |
| TaskPersister.IMAGE_EXTENSION; |
| mLastThumbnailFile = new File(TaskPersister.sImagesDir, mFilename); |
| taskId = _taskId; |
| mAffiliatedTaskId = _taskId; |
| voiceSession = _voiceSession; |
| voiceInteractor = _voiceInteractor; |
| mActivities = new ArrayList<ActivityRecord>(); |
| setIntent(_intent, info); |
| } |
| |
| TaskRecord(ActivityManagerService service, int _taskId, Intent _intent, Intent _affinityIntent, |
| String _affinity, ComponentName _realActivity, ComponentName _origActivity, |
| boolean _rootWasReset, boolean _autoRemoveRecents, boolean _askedCompatMode, |
| int _taskType, int _userId, |
| String _lastDescription, ArrayList<ActivityRecord> activities, long _firstActiveTime, |
| long _lastActiveTime, long lastTimeMoved, boolean neverRelinquishIdentity, |
| ActivityManager.TaskDescription _lastTaskDescription, int taskAffiliation, |
| int prevTaskId, int nextTaskId, int taskAffiliationColor, int callingUid, |
| String callingPackage) { |
| mService = service; |
| mFilename = String.valueOf(_taskId) + TASK_THUMBNAIL_SUFFIX + |
| TaskPersister.IMAGE_EXTENSION; |
| mLastThumbnailFile = new File(TaskPersister.sImagesDir, mFilename); |
| taskId = _taskId; |
| intent = _intent; |
| affinityIntent = _affinityIntent; |
| affinity = _affinity; |
| voiceSession = null; |
| voiceInteractor = null; |
| realActivity = _realActivity; |
| origActivity = _origActivity; |
| rootWasReset = _rootWasReset; |
| autoRemoveRecents = _autoRemoveRecents; |
| askedCompatMode = _askedCompatMode; |
| taskType = _taskType; |
| mTaskToReturnTo = HOME_ACTIVITY_TYPE; |
| userId = _userId; |
| firstActiveTime = _firstActiveTime; |
| lastActiveTime = _lastActiveTime; |
| lastDescription = _lastDescription; |
| mActivities = activities; |
| mLastTimeMoved = lastTimeMoved; |
| mNeverRelinquishIdentity = neverRelinquishIdentity; |
| lastTaskDescription = _lastTaskDescription; |
| mAffiliatedTaskId = taskAffiliation; |
| mAffiliatedTaskColor = taskAffiliationColor; |
| mPrevAffiliateTaskId = prevTaskId; |
| mNextAffiliateTaskId = nextTaskId; |
| mCallingUid = callingUid; |
| mCallingPackage = callingPackage; |
| } |
| |
| void touchActiveTime() { |
| lastActiveTime = System.currentTimeMillis(); |
| if (firstActiveTime == 0) { |
| firstActiveTime = lastActiveTime; |
| } |
| } |
| |
| long getInactiveDuration() { |
| return System.currentTimeMillis() - lastActiveTime; |
| } |
| |
| /** Sets the original intent, and the calling uid and package. */ |
| void setIntent(ActivityRecord r) { |
| setIntent(r.intent, r.info); |
| mCallingUid = r.launchedFromUid; |
| mCallingPackage = r.launchedFromPackage; |
| } |
| |
| /** Sets the original intent, _without_ updating the calling uid or package. */ |
| private void setIntent(Intent _intent, ActivityInfo info) { |
| if (intent == null) { |
| mNeverRelinquishIdentity = |
| (info.flags & ActivityInfo.FLAG_RELINQUISH_TASK_IDENTITY) == 0; |
| } else if (mNeverRelinquishIdentity) { |
| return; |
| } |
| |
| affinity = info.taskAffinity; |
| stringName = null; |
| |
| if (info.targetActivity == null) { |
| if (_intent != null) { |
| // If this Intent has a selector, we want to clear it for the |
| // recent task since it is not relevant if the user later wants |
| // to re-launch the app. |
| if (_intent.getSelector() != null || _intent.getSourceBounds() != null) { |
| _intent = new Intent(_intent); |
| _intent.setSelector(null); |
| _intent.setSourceBounds(null); |
| } |
| } |
| if (ActivityManagerService.DEBUG_TASKS) Slog.v(ActivityManagerService.TAG, |
| "Setting Intent of " + this + " to " + _intent); |
| intent = _intent; |
| realActivity = _intent != null ? _intent.getComponent() : null; |
| origActivity = null; |
| } else { |
| ComponentName targetComponent = new ComponentName( |
| info.packageName, info.targetActivity); |
| if (_intent != null) { |
| Intent targetIntent = new Intent(_intent); |
| targetIntent.setComponent(targetComponent); |
| targetIntent.setSelector(null); |
| targetIntent.setSourceBounds(null); |
| if (ActivityManagerService.DEBUG_TASKS) Slog.v(ActivityManagerService.TAG, |
| "Setting Intent of " + this + " to target " + targetIntent); |
| intent = targetIntent; |
| realActivity = targetComponent; |
| origActivity = _intent.getComponent(); |
| } else { |
| intent = null; |
| realActivity = targetComponent; |
| origActivity = new ComponentName(info.packageName, info.name); |
| } |
| } |
| |
| if (intent != null && |
| (intent.getFlags()&Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) != 0) { |
| // Once we are set to an Intent with this flag, we count this |
| // task as having a true root activity. |
| rootWasReset = true; |
| } |
| |
| userId = UserHandle.getUserId(info.applicationInfo.uid); |
| creatorUid = info.applicationInfo.uid; |
| if ((info.flags & ActivityInfo.FLAG_AUTO_REMOVE_FROM_RECENTS) != 0) { |
| // If the activity itself has requested auto-remove, then just always do it. |
| autoRemoveRecents = true; |
| } else if ((intent.getFlags()&(Intent.FLAG_ACTIVITY_NEW_DOCUMENT |
| |Intent.FLAG_ACTIVITY_RETAIN_IN_RECENTS)) == Intent.FLAG_ACTIVITY_NEW_DOCUMENT) { |
| // If the caller has not asked for the document to be retained, then we may |
| // want to turn on auto-remove, depending on whether the target has set its |
| // own document launch mode. |
| if (info.documentLaunchMode != ActivityInfo.DOCUMENT_LAUNCH_NONE) { |
| autoRemoveRecents = false; |
| } else { |
| autoRemoveRecents = true; |
| } |
| } else { |
| autoRemoveRecents = false; |
| } |
| } |
| |
| void setTaskToReturnTo(int taskToReturnTo) { |
| if (IGNORE_RETURN_TO_RECENTS && taskToReturnTo == RECENTS_ACTIVITY_TYPE) { |
| taskToReturnTo = HOME_ACTIVITY_TYPE; |
| } |
| mTaskToReturnTo = taskToReturnTo; |
| } |
| |
| int getTaskToReturnTo() { |
| return mTaskToReturnTo; |
| } |
| |
| void setPrevAffiliate(TaskRecord prevAffiliate) { |
| mPrevAffiliate = prevAffiliate; |
| mPrevAffiliateTaskId = prevAffiliate == null ? -1 : prevAffiliate.taskId; |
| } |
| |
| void setNextAffiliate(TaskRecord nextAffiliate) { |
| mNextAffiliate = nextAffiliate; |
| mNextAffiliateTaskId = nextAffiliate == null ? -1 : nextAffiliate.taskId; |
| } |
| |
| // Close up recents linked list. |
| void closeRecentsChain() { |
| if (mPrevAffiliate != null) { |
| mPrevAffiliate.setNextAffiliate(mNextAffiliate); |
| } |
| if (mNextAffiliate != null) { |
| mNextAffiliate.setPrevAffiliate(mPrevAffiliate); |
| } |
| setPrevAffiliate(null); |
| setNextAffiliate(null); |
| } |
| |
| void setTaskToAffiliateWith(TaskRecord taskToAffiliateWith) { |
| closeRecentsChain(); |
| mAffiliatedTaskId = taskToAffiliateWith.mAffiliatedTaskId; |
| mAffiliatedTaskColor = taskToAffiliateWith.mAffiliatedTaskColor; |
| // Find the end |
| while (taskToAffiliateWith.mNextAffiliate != null) { |
| final TaskRecord nextRecents = taskToAffiliateWith.mNextAffiliate; |
| if (nextRecents.mAffiliatedTaskId != mAffiliatedTaskId) { |
| Slog.e(TAG, "setTaskToAffiliateWith: nextRecents=" + nextRecents + " affilTaskId=" |
| + nextRecents.mAffiliatedTaskId + " should be " + mAffiliatedTaskId); |
| if (nextRecents.mPrevAffiliate == taskToAffiliateWith) { |
| nextRecents.setPrevAffiliate(null); |
| } |
| taskToAffiliateWith.setNextAffiliate(null); |
| break; |
| } |
| taskToAffiliateWith = nextRecents; |
| } |
| taskToAffiliateWith.setNextAffiliate(this); |
| setPrevAffiliate(taskToAffiliateWith); |
| setNextAffiliate(null); |
| } |
| |
| void setLastThumbnail(Bitmap thumbnail) { |
| mLastThumbnail = thumbnail; |
| if (thumbnail == null) { |
| if (mLastThumbnailFile != null) { |
| mLastThumbnailFile.delete(); |
| } |
| } else { |
| mService.mTaskPersister.saveImage(thumbnail, mFilename); |
| } |
| } |
| |
| void getLastThumbnail(TaskThumbnail thumbs) { |
| thumbs.mainThumbnail = mLastThumbnail; |
| thumbs.thumbnailFileDescriptor = null; |
| if (mLastThumbnail == null) { |
| thumbs.mainThumbnail = mService.mTaskPersister.getThumbnail(mFilename); |
| } |
| if (mLastThumbnailFile.exists()) { |
| try { |
| thumbs.thumbnailFileDescriptor = ParcelFileDescriptor.open(mLastThumbnailFile, |
| ParcelFileDescriptor.MODE_READ_ONLY); |
| } catch (IOException e) { |
| } |
| } |
| } |
| |
| void freeLastThumbnail() { |
| mLastThumbnail = null; |
| } |
| |
| void disposeThumbnail() { |
| mLastThumbnail = null; |
| lastDescription = null; |
| } |
| |
| /** Returns the intent for the root activity for this task */ |
| Intent getBaseIntent() { |
| return intent != null ? intent : affinityIntent; |
| } |
| |
| /** Returns the first non-finishing activity from the root. */ |
| ActivityRecord getRootActivity() { |
| for (int i = 0; i < mActivities.size(); i++) { |
| final ActivityRecord r = mActivities.get(i); |
| if (r.finishing) { |
| continue; |
| } |
| return r; |
| } |
| return null; |
| } |
| |
| ActivityRecord getTopActivity() { |
| for (int i = mActivities.size() - 1; i >= 0; --i) { |
| final ActivityRecord r = mActivities.get(i); |
| if (r.finishing) { |
| continue; |
| } |
| return r; |
| } |
| return null; |
| } |
| |
| ActivityRecord topRunningActivityLocked(ActivityRecord notTop) { |
| for (int activityNdx = mActivities.size() - 1; activityNdx >= 0; --activityNdx) { |
| ActivityRecord r = mActivities.get(activityNdx); |
| if (!r.finishing && r != notTop && stack.okToShowLocked(r)) { |
| return r; |
| } |
| } |
| return null; |
| } |
| |
| /** Call after activity movement or finish to make sure that frontOfTask is set correctly */ |
| final void setFrontOfTask() { |
| boolean foundFront = false; |
| final int numActivities = mActivities.size(); |
| for (int activityNdx = 0; activityNdx < numActivities; ++activityNdx) { |
| final ActivityRecord r = mActivities.get(activityNdx); |
| if (foundFront || r.finishing) { |
| r.frontOfTask = false; |
| } else { |
| r.frontOfTask = true; |
| // Set frontOfTask false for every following activity. |
| foundFront = true; |
| } |
| } |
| if (!foundFront && numActivities > 0) { |
| // All activities of this task are finishing. As we ought to have a frontOfTask |
| // activity, make the bottom activity front. |
| mActivities.get(0).frontOfTask = true; |
| } |
| } |
| |
| /** |
| * Reorder the history stack so that the passed activity is brought to the front. |
| */ |
| final void moveActivityToFrontLocked(ActivityRecord newTop) { |
| if (DEBUG_ADD_REMOVE) Slog.i(TAG, "Removing and adding activity " + newTop |
| + " to stack at top", new RuntimeException("here").fillInStackTrace()); |
| |
| mActivities.remove(newTop); |
| mActivities.add(newTop); |
| updateEffectiveIntent(); |
| |
| setFrontOfTask(); |
| } |
| |
| void addActivityAtBottom(ActivityRecord r) { |
| addActivityAtIndex(0, r); |
| } |
| |
| void addActivityToTop(ActivityRecord r) { |
| addActivityAtIndex(mActivities.size(), r); |
| } |
| |
| void addActivityAtIndex(int index, ActivityRecord r) { |
| // Remove r first, and if it wasn't already in the list and it's fullscreen, count it. |
| if (!mActivities.remove(r) && r.fullscreen) { |
| // Was not previously in list. |
| numFullscreen++; |
| } |
| // Only set this based on the first activity |
| if (mActivities.isEmpty()) { |
| taskType = r.mActivityType; |
| isPersistable = r.isPersistable(); |
| mCallingUid = r.launchedFromUid; |
| mCallingPackage = r.launchedFromPackage; |
| // Clamp to [1, 100]. |
| maxRecents = Math.min(Math.max(r.info.maxRecents, 1), 100); |
| } else { |
| // Otherwise make all added activities match this one. |
| r.mActivityType = taskType; |
| } |
| mActivities.add(index, r); |
| updateEffectiveIntent(); |
| if (r.isPersistable()) { |
| mService.notifyTaskPersisterLocked(this, false); |
| } |
| } |
| |
| /** @return true if this was the last activity in the task */ |
| boolean removeActivity(ActivityRecord r) { |
| if (mActivities.remove(r) && r.fullscreen) { |
| // Was previously in list. |
| numFullscreen--; |
| } |
| if (r.isPersistable()) { |
| mService.notifyTaskPersisterLocked(this, false); |
| } |
| if (mActivities.isEmpty()) { |
| return !mReuseTask; |
| } |
| updateEffectiveIntent(); |
| return false; |
| } |
| |
| boolean autoRemoveFromRecents() { |
| // We will automatically remove the task either if it has explicitly asked for |
| // this, or it is empty and has never contained an activity that got shown to |
| // the user. |
| return autoRemoveRecents || (mActivities.isEmpty() && !hasBeenVisible); |
| } |
| |
| /** |
| * Completely remove all activities associated with an existing |
| * task starting at a specified index. |
| */ |
| final void performClearTaskAtIndexLocked(int activityNdx) { |
| int numActivities = mActivities.size(); |
| for ( ; activityNdx < numActivities; ++activityNdx) { |
| final ActivityRecord r = mActivities.get(activityNdx); |
| if (r.finishing) { |
| continue; |
| } |
| if (stack == null) { |
| // Task was restored from persistent storage. |
| r.takeFromHistory(); |
| mActivities.remove(activityNdx); |
| --activityNdx; |
| --numActivities; |
| } else if (stack.finishActivityLocked(r, Activity.RESULT_CANCELED, null, "clear", |
| false)) { |
| --activityNdx; |
| --numActivities; |
| } |
| } |
| } |
| |
| /** |
| * Completely remove all activities associated with an existing task. |
| */ |
| final void performClearTaskLocked() { |
| mReuseTask = true; |
| performClearTaskAtIndexLocked(0); |
| mReuseTask = false; |
| } |
| |
| /** |
| * Perform clear operation as requested by |
| * {@link Intent#FLAG_ACTIVITY_CLEAR_TOP}: search from the top of the |
| * stack to the given task, then look for |
| * an instance of that activity in the stack and, if found, finish all |
| * activities on top of it and return the instance. |
| * |
| * @param newR Description of the new activity being started. |
| * @return Returns the old activity that should be continued to be used, |
| * or null if none was found. |
| */ |
| final ActivityRecord performClearTaskLocked(ActivityRecord newR, int launchFlags) { |
| int numActivities = mActivities.size(); |
| for (int activityNdx = numActivities - 1; activityNdx >= 0; --activityNdx) { |
| ActivityRecord r = mActivities.get(activityNdx); |
| if (r.finishing) { |
| continue; |
| } |
| if (r.realActivity.equals(newR.realActivity)) { |
| // Here it is! Now finish everything in front... |
| final ActivityRecord ret = r; |
| |
| for (++activityNdx; activityNdx < numActivities; ++activityNdx) { |
| r = mActivities.get(activityNdx); |
| if (r.finishing) { |
| continue; |
| } |
| ActivityOptions opts = r.takeOptionsLocked(); |
| if (opts != null) { |
| ret.updateOptionsLocked(opts); |
| } |
| if (stack.finishActivityLocked(r, Activity.RESULT_CANCELED, null, "clear", |
| false)) { |
| --activityNdx; |
| --numActivities; |
| } |
| } |
| |
| // Finally, if this is a normal launch mode (that is, not |
| // expecting onNewIntent()), then we will finish the current |
| // instance of the activity so a new fresh one can be started. |
| if (ret.launchMode == ActivityInfo.LAUNCH_MULTIPLE |
| && (launchFlags & Intent.FLAG_ACTIVITY_SINGLE_TOP) == 0) { |
| if (!ret.finishing) { |
| stack.finishActivityLocked(ret, Activity.RESULT_CANCELED, null, |
| "clear", false); |
| return null; |
| } |
| } |
| |
| return ret; |
| } |
| } |
| |
| return null; |
| } |
| |
| public TaskThumbnail getTaskThumbnailLocked() { |
| if (stack != null) { |
| final ActivityRecord resumedActivity = stack.mResumedActivity; |
| if (resumedActivity != null && resumedActivity.task == this) { |
| final Bitmap thumbnail = stack.screenshotActivities(resumedActivity); |
| setLastThumbnail(thumbnail); |
| } |
| } |
| final TaskThumbnail taskThumbnail = new TaskThumbnail(); |
| getLastThumbnail(taskThumbnail); |
| return taskThumbnail; |
| } |
| |
| public void removeTaskActivitiesLocked() { |
| // Just remove the entire task. |
| performClearTaskAtIndexLocked(0); |
| } |
| |
| boolean isHomeTask() { |
| return taskType == HOME_ACTIVITY_TYPE; |
| } |
| |
| boolean isApplicationTask() { |
| return taskType == APPLICATION_ACTIVITY_TYPE; |
| } |
| |
| boolean isOverHomeStack() { |
| return mTaskToReturnTo == HOME_ACTIVITY_TYPE || mTaskToReturnTo == RECENTS_ACTIVITY_TYPE; |
| } |
| |
| /** |
| * Find the activity in the history stack within the given task. Returns |
| * the index within the history at which it's found, or < 0 if not found. |
| */ |
| final ActivityRecord findActivityInHistoryLocked(ActivityRecord r) { |
| final ComponentName realActivity = r.realActivity; |
| for (int activityNdx = mActivities.size() - 1; activityNdx >= 0; --activityNdx) { |
| ActivityRecord candidate = mActivities.get(activityNdx); |
| if (candidate.finishing) { |
| continue; |
| } |
| if (candidate.realActivity.equals(realActivity)) { |
| return candidate; |
| } |
| } |
| return null; |
| } |
| |
| /** Updates the last task description values. */ |
| void updateTaskDescription() { |
| // Traverse upwards looking for any break between main task activities and |
| // utility activities. |
| int activityNdx; |
| final int numActivities = mActivities.size(); |
| final boolean relinquish = numActivities == 0 ? false : |
| (mActivities.get(0).info.flags & ActivityInfo.FLAG_RELINQUISH_TASK_IDENTITY) != 0; |
| for (activityNdx = Math.min(numActivities, 1); activityNdx < numActivities; |
| ++activityNdx) { |
| final ActivityRecord r = mActivities.get(activityNdx); |
| if (relinquish && (r.info.flags & ActivityInfo.FLAG_RELINQUISH_TASK_IDENTITY) == 0) { |
| // This will be the top activity for determining taskDescription. Pre-inc to |
| // overcome initial decrement below. |
| ++activityNdx; |
| break; |
| } |
| if (r.intent != null && |
| (r.intent.getFlags() & Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET) != 0) { |
| break; |
| } |
| } |
| if (activityNdx > 0) { |
| // Traverse downwards starting below break looking for set label, icon. |
| // Note that if there are activities in the task but none of them set the |
| // recent activity values, then we do not fall back to the last set |
| // values in the TaskRecord. |
| String label = null; |
| Bitmap icon = null; |
| int colorPrimary = 0; |
| for (--activityNdx; activityNdx >= 0; --activityNdx) { |
| final ActivityRecord r = mActivities.get(activityNdx); |
| if (r.taskDescription != null) { |
| if (label == null) { |
| label = r.taskDescription.getLabel(); |
| } |
| if (icon == null) { |
| icon = r.taskDescription.getIcon(); |
| } |
| if (colorPrimary == 0) { |
| colorPrimary = r.taskDescription.getPrimaryColor(); |
| } |
| } |
| } |
| lastTaskDescription = new ActivityManager.TaskDescription(label, icon, colorPrimary); |
| // Update the task affiliation color if we are the parent of the group |
| if (taskId == mAffiliatedTaskId) { |
| mAffiliatedTaskColor = lastTaskDescription.getPrimaryColor(); |
| } |
| } |
| } |
| |
| int findEffectiveRootIndex() { |
| int activityNdx; |
| final int topActivityNdx = mActivities.size() - 1; |
| for (activityNdx = 0; activityNdx < topActivityNdx; ++activityNdx) { |
| final ActivityRecord r = mActivities.get(activityNdx); |
| if (r.finishing) { |
| continue; |
| } |
| if ((r.info.flags & ActivityInfo.FLAG_RELINQUISH_TASK_IDENTITY) == 0) { |
| break; |
| } |
| } |
| return activityNdx; |
| } |
| |
| void updateEffectiveIntent() { |
| final int effectiveRootIndex = findEffectiveRootIndex(); |
| final ActivityRecord r = mActivities.get(effectiveRootIndex); |
| setIntent(r); |
| } |
| |
| void saveTaskDescription(ActivityManager.TaskDescription taskDescription, |
| String iconFilename, XmlSerializer out) throws IOException { |
| if (taskDescription != null) { |
| final String label = taskDescription.getLabel(); |
| if (label != null) { |
| out.attribute(null, ATTR_TASKDESCRIPTIONLABEL, label); |
| } |
| final int colorPrimary = taskDescription.getPrimaryColor(); |
| if (colorPrimary != 0) { |
| out.attribute(null, ATTR_TASKDESCRIPTIONCOLOR, Integer.toHexString(colorPrimary)); |
| } |
| final Bitmap icon = taskDescription.getIcon(); |
| if (icon != null) { |
| mService.mTaskPersister.saveImage(icon, iconFilename); |
| } |
| } |
| } |
| |
| static boolean readTaskDescriptionAttribute(ActivityManager.TaskDescription taskDescription, |
| String attrName, String attrValue) { |
| if (ATTR_TASKDESCRIPTIONLABEL.equals(attrName)) { |
| taskDescription.setLabel(attrValue); |
| } else if (ATTR_TASKDESCRIPTIONCOLOR.equals(attrName)) { |
| taskDescription.setPrimaryColor((int) Long.parseLong(attrValue, 16)); |
| } else { |
| return false; |
| } |
| return true; |
| } |
| |
| void saveToXml(XmlSerializer out) throws IOException, XmlPullParserException { |
| Slog.i(TAG, "Saving task=" + this); |
| |
| out.attribute(null, ATTR_TASKID, String.valueOf(taskId)); |
| if (realActivity != null) { |
| out.attribute(null, ATTR_REALACTIVITY, realActivity.flattenToShortString()); |
| } |
| if (origActivity != null) { |
| out.attribute(null, ATTR_ORIGACTIVITY, origActivity.flattenToShortString()); |
| } |
| if (affinity != null) { |
| out.attribute(null, ATTR_AFFINITY, affinity); |
| } |
| out.attribute(null, ATTR_ROOTHASRESET, String.valueOf(rootWasReset)); |
| out.attribute(null, ATTR_AUTOREMOVERECENTS, String.valueOf(autoRemoveRecents)); |
| out.attribute(null, ATTR_ASKEDCOMPATMODE, String.valueOf(askedCompatMode)); |
| out.attribute(null, ATTR_USERID, String.valueOf(userId)); |
| out.attribute(null, ATTR_TASKTYPE, String.valueOf(taskType)); |
| out.attribute(null, ATTR_FIRSTACTIVETIME, String.valueOf(firstActiveTime)); |
| out.attribute(null, ATTR_LASTACTIVETIME, String.valueOf(lastActiveTime)); |
| out.attribute(null, ATTR_LASTTIMEMOVED, String.valueOf(mLastTimeMoved)); |
| out.attribute(null, ATTR_NEVERRELINQUISH, String.valueOf(mNeverRelinquishIdentity)); |
| if (lastDescription != null) { |
| out.attribute(null, ATTR_LASTDESCRIPTION, lastDescription.toString()); |
| } |
| if (lastTaskDescription != null) { |
| saveTaskDescription(lastTaskDescription, String.valueOf(taskId) + |
| LAST_ACTIVITY_ICON_SUFFIX + lastActiveTime, out); |
| } |
| out.attribute(null, ATTR_TASK_AFFILIATION_COLOR, String.valueOf(mAffiliatedTaskColor)); |
| out.attribute(null, ATTR_TASK_AFFILIATION, String.valueOf(mAffiliatedTaskId)); |
| out.attribute(null, ATTR_PREV_AFFILIATION, String.valueOf(mPrevAffiliateTaskId)); |
| out.attribute(null, ATTR_NEXT_AFFILIATION, String.valueOf(mNextAffiliateTaskId)); |
| out.attribute(null, ATTR_CALLING_UID, String.valueOf(mCallingUid)); |
| out.attribute(null, ATTR_CALLING_PACKAGE, mCallingPackage == null ? "" : mCallingPackage); |
| |
| if (affinityIntent != null) { |
| out.startTag(null, TAG_AFFINITYINTENT); |
| affinityIntent.saveToXml(out); |
| out.endTag(null, TAG_AFFINITYINTENT); |
| } |
| |
| out.startTag(null, TAG_INTENT); |
| intent.saveToXml(out); |
| out.endTag(null, TAG_INTENT); |
| |
| final ArrayList<ActivityRecord> activities = mActivities; |
| final int numActivities = activities.size(); |
| for (int activityNdx = 0; activityNdx < numActivities; ++activityNdx) { |
| final ActivityRecord r = activities.get(activityNdx); |
| if (r.info.persistableMode == ActivityInfo.PERSIST_ROOT_ONLY || !r.isPersistable() || |
| ((r.intent.getFlags() & Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET) != 0) && |
| activityNdx > 0) { |
| // Stop at first non-persistable or first break in task (CLEAR_WHEN_TASK_RESET). |
| break; |
| } |
| out.startTag(null, TAG_ACTIVITY); |
| r.saveToXml(out); |
| out.endTag(null, TAG_ACTIVITY); |
| } |
| } |
| |
| static TaskRecord restoreFromXml(XmlPullParser in, ActivityStackSupervisor stackSupervisor) |
| throws IOException, XmlPullParserException { |
| Intent intent = null; |
| Intent affinityIntent = null; |
| ArrayList<ActivityRecord> activities = new ArrayList<ActivityRecord>(); |
| ComponentName realActivity = null; |
| ComponentName origActivity = null; |
| String affinity = null; |
| boolean rootHasReset = false; |
| boolean autoRemoveRecents = false; |
| boolean askedCompatMode = false; |
| int taskType = ActivityRecord.APPLICATION_ACTIVITY_TYPE; |
| int userId = 0; |
| String lastDescription = null; |
| long firstActiveTime = -1; |
| long lastActiveTime = -1; |
| long lastTimeOnTop = 0; |
| boolean neverRelinquishIdentity = true; |
| int taskId = -1; |
| final int outerDepth = in.getDepth(); |
| ActivityManager.TaskDescription taskDescription = new ActivityManager.TaskDescription(); |
| int taskAffiliation = -1; |
| int taskAffiliationColor = 0; |
| int prevTaskId = -1; |
| int nextTaskId = -1; |
| int callingUid = -1; |
| String callingPackage = ""; |
| |
| for (int attrNdx = in.getAttributeCount() - 1; attrNdx >= 0; --attrNdx) { |
| final String attrName = in.getAttributeName(attrNdx); |
| final String attrValue = in.getAttributeValue(attrNdx); |
| if (TaskPersister.DEBUG) Slog.d(TaskPersister.TAG, "TaskRecord: attribute name=" + |
| attrName + " value=" + attrValue); |
| if (ATTR_TASKID.equals(attrName)) { |
| taskId = Integer.valueOf(attrValue); |
| } else if (ATTR_REALACTIVITY.equals(attrName)) { |
| realActivity = ComponentName.unflattenFromString(attrValue); |
| } else if (ATTR_ORIGACTIVITY.equals(attrName)) { |
| origActivity = ComponentName.unflattenFromString(attrValue); |
| } else if (ATTR_AFFINITY.equals(attrName)) { |
| affinity = attrValue; |
| } else if (ATTR_ROOTHASRESET.equals(attrName)) { |
| rootHasReset = Boolean.valueOf(attrValue); |
| } else if (ATTR_AUTOREMOVERECENTS.equals(attrName)) { |
| autoRemoveRecents = Boolean.valueOf(attrValue); |
| } else if (ATTR_ASKEDCOMPATMODE.equals(attrName)) { |
| askedCompatMode = Boolean.valueOf(attrValue); |
| } else if (ATTR_USERID.equals(attrName)) { |
| userId = Integer.valueOf(attrValue); |
| } else if (ATTR_TASKTYPE.equals(attrName)) { |
| taskType = Integer.valueOf(attrValue); |
| } else if (ATTR_FIRSTACTIVETIME.equals(attrName)) { |
| firstActiveTime = Long.valueOf(attrValue); |
| } else if (ATTR_LASTACTIVETIME.equals(attrName)) { |
| lastActiveTime = Long.valueOf(attrValue); |
| } else if (ATTR_LASTDESCRIPTION.equals(attrName)) { |
| lastDescription = attrValue; |
| } else if (ATTR_LASTTIMEMOVED.equals(attrName)) { |
| lastTimeOnTop = Long.valueOf(attrValue); |
| } else if (ATTR_NEVERRELINQUISH.equals(attrName)) { |
| neverRelinquishIdentity = Boolean.valueOf(attrValue); |
| } else if (readTaskDescriptionAttribute(taskDescription, attrName, attrValue)) { |
| // Completed in TaskPersister.readTaskDescriptionAttribute() |
| } else if (ATTR_TASK_AFFILIATION.equals(attrName)) { |
| taskAffiliation = Integer.valueOf(attrValue); |
| } else if (ATTR_PREV_AFFILIATION.equals(attrName)) { |
| prevTaskId = Integer.valueOf(attrValue); |
| } else if (ATTR_NEXT_AFFILIATION.equals(attrName)) { |
| nextTaskId = Integer.valueOf(attrValue); |
| } else if (ATTR_TASK_AFFILIATION_COLOR.equals(attrName)) { |
| taskAffiliationColor = Integer.valueOf(attrValue); |
| } else if (ATTR_CALLING_UID.equals(attrName)) { |
| callingUid = Integer.valueOf(attrValue); |
| } else if (ATTR_CALLING_PACKAGE.equals(attrName)) { |
| callingPackage = attrValue; |
| } else { |
| Slog.w(TAG, "TaskRecord: Unknown attribute=" + attrName); |
| } |
| } |
| |
| int event; |
| while (((event = in.next()) != XmlPullParser.END_DOCUMENT) && |
| (event != XmlPullParser.END_TAG || in.getDepth() < outerDepth)) { |
| if (event == XmlPullParser.START_TAG) { |
| final String name = in.getName(); |
| if (TaskPersister.DEBUG) Slog.d(TaskPersister.TAG, "TaskRecord: START_TAG name=" + |
| name); |
| if (TAG_AFFINITYINTENT.equals(name)) { |
| affinityIntent = Intent.restoreFromXml(in); |
| } else if (TAG_INTENT.equals(name)) { |
| intent = Intent.restoreFromXml(in); |
| } else if (TAG_ACTIVITY.equals(name)) { |
| ActivityRecord activity = |
| ActivityRecord.restoreFromXml(in, taskId, stackSupervisor); |
| if (TaskPersister.DEBUG) Slog.d(TaskPersister.TAG, "TaskRecord: activity=" + |
| activity); |
| if (activity != null) { |
| activities.add(activity); |
| } |
| } else { |
| Slog.e(TAG, "restoreTask: Unexpected name=" + name); |
| XmlUtils.skipCurrentTag(in); |
| } |
| } |
| } |
| |
| if (lastActiveTime >= 0) { |
| taskDescription.setIcon(TaskPersister.restoreImage(String.valueOf(taskId) + |
| LAST_ACTIVITY_ICON_SUFFIX + lastActiveTime + TaskPersister.IMAGE_EXTENSION)); |
| } |
| |
| final TaskRecord task = new TaskRecord(stackSupervisor.mService, taskId, intent, |
| affinityIntent, affinity, realActivity, origActivity, rootHasReset, |
| autoRemoveRecents, askedCompatMode, taskType, userId, lastDescription, activities, |
| firstActiveTime, lastActiveTime, lastTimeOnTop, neverRelinquishIdentity, |
| taskDescription, taskAffiliation, prevTaskId, nextTaskId, taskAffiliationColor, |
| callingUid, callingPackage); |
| |
| for (int activityNdx = activities.size() - 1; activityNdx >=0; --activityNdx) { |
| activities.get(activityNdx).task = task; |
| } |
| |
| Slog.i(TAG, "Restored task=" + task); |
| return task; |
| } |
| |
| void dump(PrintWriter pw, String prefix) { |
| if (rootWasReset || userId != 0 || numFullscreen != 0) { |
| pw.print(prefix); pw.print(" rootWasReset="); pw.print(rootWasReset); |
| pw.print(" userId="); pw.print(userId); |
| pw.print(" taskType="); pw.print(taskType); |
| pw.print(" numFullscreen="); pw.print(numFullscreen); |
| pw.print(" mTaskToReturnTo="); pw.println(mTaskToReturnTo); |
| } |
| if (affinity != null) { |
| pw.print(prefix); pw.print("affinity="); pw.println(affinity); |
| } |
| if (voiceSession != null || voiceInteractor != null) { |
| pw.print(prefix); pw.print("VOICE: session=0x"); |
| pw.print(Integer.toHexString(System.identityHashCode(voiceSession))); |
| pw.print(" interactor=0x"); |
| pw.println(Integer.toHexString(System.identityHashCode(voiceInteractor))); |
| } |
| if (intent != null) { |
| StringBuilder sb = new StringBuilder(128); |
| sb.append(prefix); sb.append("intent={"); |
| intent.toShortString(sb, false, true, false, true); |
| sb.append('}'); |
| pw.println(sb.toString()); |
| } |
| if (affinityIntent != null) { |
| StringBuilder sb = new StringBuilder(128); |
| sb.append(prefix); sb.append("affinityIntent={"); |
| affinityIntent.toShortString(sb, false, true, false, true); |
| sb.append('}'); |
| pw.println(sb.toString()); |
| } |
| if (origActivity != null) { |
| pw.print(prefix); pw.print("origActivity="); |
| pw.println(origActivity.flattenToShortString()); |
| } |
| if (realActivity != null) { |
| pw.print(prefix); pw.print("realActivity="); |
| pw.println(realActivity.flattenToShortString()); |
| } |
| pw.print(prefix); pw.print("Activities="); pw.println(mActivities); |
| if (!askedCompatMode) { |
| pw.print(prefix); pw.print("askedCompatMode="); pw.println(askedCompatMode); |
| } |
| pw.print(prefix); pw.print("lastThumbnail="); pw.print(mLastThumbnail); |
| pw.print(" lastThumbnailFile="); pw.print(mLastThumbnailFile); |
| pw.print(" lastDescription="); pw.println(lastDescription); |
| pw.print(prefix); pw.print("hasBeenVisible="); pw.print(hasBeenVisible); |
| pw.print(" firstActiveTime="); pw.print(lastActiveTime); |
| pw.print(" lastActiveTime="); pw.print(lastActiveTime); |
| pw.print(" (inactive for "); |
| pw.print((getInactiveDuration()/1000)); pw.println("s)"); |
| pw.print(prefix); pw.print("isPersistable="); pw.print(isPersistable); |
| pw.print(" affiliation="); pw.print(mAffiliatedTaskId); |
| pw.print(" prevAffiliation="); pw.print(mPrevAffiliateTaskId); |
| pw.print(" nextAffiliation="); pw.println(mNextAffiliateTaskId); |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder(128); |
| if (stringName != null) { |
| sb.append(stringName); |
| sb.append(" U="); |
| sb.append(userId); |
| sb.append(" sz="); |
| sb.append(mActivities.size()); |
| sb.append('}'); |
| return sb.toString(); |
| } |
| sb.append("TaskRecord{"); |
| sb.append(Integer.toHexString(System.identityHashCode(this))); |
| sb.append(" #"); |
| sb.append(taskId); |
| if (affinity != null) { |
| sb.append(" A="); |
| sb.append(affinity); |
| } else if (intent != null) { |
| sb.append(" I="); |
| sb.append(intent.getComponent().flattenToShortString()); |
| } else if (affinityIntent != null) { |
| sb.append(" aI="); |
| sb.append(affinityIntent.getComponent().flattenToShortString()); |
| } else { |
| sb.append(" ??"); |
| } |
| stringName = sb.toString(); |
| return toString(); |
| } |
| } |
