| /* |
| * Copyright (C) 2017 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.systemui.statusbar.phone; |
| |
| import static android.app.StatusBarManager.NAVIGATION_HINT_BACK_ALT; |
| import static android.app.StatusBarManager.NAVIGATION_HINT_IME_SHOWN; |
| import static android.app.StatusBarManager.WINDOW_STATE_HIDDEN; |
| import static android.app.StatusBarManager.WINDOW_STATE_SHOWING; |
| import static android.app.StatusBarManager.WindowType; |
| import static android.app.StatusBarManager.WindowVisibleState; |
| import static android.app.StatusBarManager.windowStateToString; |
| import static android.view.WindowManagerPolicyConstants.NAV_BAR_MODE_3BUTTON; |
| |
| import static com.android.systemui.recents.OverviewProxyService.OverviewProxyListener; |
| import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_A11Y_BUTTON_CLICKABLE; |
| import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_A11Y_BUTTON_LONG_CLICKABLE; |
| import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_NAV_BAR_HIDDEN; |
| import static com.android.systemui.statusbar.phone.BarTransitions.MODE_LIGHTS_OUT; |
| import static com.android.systemui.statusbar.phone.BarTransitions.MODE_LIGHTS_OUT_TRANSPARENT; |
| import static com.android.systemui.statusbar.phone.BarTransitions.MODE_OPAQUE; |
| import static com.android.systemui.statusbar.phone.BarTransitions.MODE_SEMI_TRANSPARENT; |
| import static com.android.systemui.statusbar.phone.BarTransitions.MODE_TRANSLUCENT; |
| import static com.android.systemui.statusbar.phone.BarTransitions.MODE_TRANSPARENT; |
| import static com.android.systemui.statusbar.phone.BarTransitions.TransitionMode; |
| import static com.android.systemui.statusbar.phone.StatusBar.DEBUG_WINDOW_STATE; |
| import static com.android.systemui.statusbar.phone.StatusBar.dumpBarTransitions; |
| |
| import android.accessibilityservice.AccessibilityServiceInfo; |
| import android.annotation.IdRes; |
| import android.annotation.Nullable; |
| import android.app.ActivityManager; |
| import android.app.ActivityTaskManager; |
| import android.app.IActivityTaskManager; |
| import android.app.StatusBarManager; |
| import android.content.BroadcastReceiver; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.res.Configuration; |
| import android.database.ContentObserver; |
| import android.graphics.PixelFormat; |
| import android.graphics.Rect; |
| import android.inputmethodservice.InputMethodService; |
| import android.net.Uri; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.telecom.TelecomManager; |
| import android.text.TextUtils; |
| import android.util.Log; |
| import android.view.Display; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.MotionEvent; |
| import android.view.Surface; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.WindowManager; |
| import android.view.WindowManager.LayoutParams; |
| import android.view.accessibility.AccessibilityEvent; |
| import android.view.accessibility.AccessibilityManager; |
| import android.view.accessibility.AccessibilityManager.AccessibilityServicesStateChangeListener; |
| |
| import androidx.annotation.VisibleForTesting; |
| |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.internal.logging.nano.MetricsProto.MetricsEvent; |
| import com.android.internal.util.LatencyTracker; |
| import com.android.systemui.Dependency; |
| import com.android.systemui.R; |
| import com.android.systemui.ScreenDecorations; |
| import com.android.systemui.SysUiServiceProvider; |
| import com.android.systemui.assist.AssistManager; |
| import com.android.systemui.fragments.FragmentHostManager; |
| import com.android.systemui.fragments.FragmentHostManager.FragmentListener; |
| import com.android.systemui.plugins.statusbar.StatusBarStateController; |
| import com.android.systemui.recents.OverviewProxyService; |
| import com.android.systemui.recents.Recents; |
| import com.android.systemui.shared.system.ActivityManagerWrapper; |
| import com.android.systemui.shared.system.QuickStepContract; |
| import com.android.systemui.stackdivider.Divider; |
| import com.android.systemui.statusbar.CommandQueue; |
| import com.android.systemui.statusbar.CommandQueue.Callbacks; |
| import com.android.systemui.statusbar.StatusBarState; |
| import com.android.systemui.statusbar.notification.stack.StackStateAnimator; |
| import com.android.systemui.statusbar.phone.ContextualButton.ContextButtonListener; |
| import com.android.systemui.statusbar.policy.AccessibilityManagerWrapper; |
| import com.android.systemui.statusbar.policy.DeviceProvisionedController; |
| import com.android.systemui.statusbar.policy.KeyButtonView; |
| import com.android.systemui.util.LifecycleFragment; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.function.Consumer; |
| |
| import javax.inject.Inject; |
| |
| /** |
| * Fragment containing the NavigationBarFragment. Contains logic for what happens |
| * on clicks and view states of the nav bar. |
| */ |
| public class NavigationBarFragment extends LifecycleFragment implements Callbacks, |
| NavigationModeController.ModeChangedListener { |
| |
| public static final String TAG = "NavigationBar"; |
| private static final boolean DEBUG = false; |
| private static final String EXTRA_DISABLE_STATE = "disabled_state"; |
| private static final String EXTRA_DISABLE2_STATE = "disabled2_state"; |
| private static final String EXTRA_SYSTEM_UI_VISIBILITY = "system_ui_visibility"; |
| |
| /** Allow some time inbetween the long press for back and recents. */ |
| private static final int LOCK_TO_APP_GESTURE_TOLERENCE = 200; |
| private static final long AUTODIM_TIMEOUT_MS = 2250; |
| |
| private final AccessibilityManagerWrapper mAccessibilityManagerWrapper; |
| protected final AssistManager mAssistManager; |
| private final MetricsLogger mMetricsLogger; |
| private final DeviceProvisionedController mDeviceProvisionedController; |
| private final StatusBarStateController mStatusBarStateController; |
| |
| protected NavigationBarView mNavigationBarView = null; |
| |
| private @WindowVisibleState int mNavigationBarWindowState = WINDOW_STATE_SHOWING; |
| |
| private int mNavigationIconHints = 0; |
| private @TransitionMode int mNavigationBarMode; |
| private AccessibilityManager mAccessibilityManager; |
| private MagnificationContentObserver mMagnificationObserver; |
| private ContentResolver mContentResolver; |
| private boolean mAssistantAvailable; |
| |
| private int mDisabledFlags1; |
| private int mDisabledFlags2; |
| private StatusBar mStatusBar; |
| private Recents mRecents; |
| private Divider mDivider; |
| private WindowManager mWindowManager; |
| private CommandQueue mCommandQueue; |
| private long mLastLockToAppLongPress; |
| |
| private Locale mLocale; |
| private int mLayoutDirection; |
| |
| private int mSystemUiVisibility = View.SYSTEM_UI_FLAG_VISIBLE; |
| private int mNavBarMode = NAV_BAR_MODE_3BUTTON; |
| private LightBarController mLightBarController; |
| private AutoHideController mAutoHideController; |
| |
| private OverviewProxyService mOverviewProxyService; |
| |
| @VisibleForTesting |
| public int mDisplayId; |
| private boolean mIsOnDefaultDisplay; |
| public boolean mHomeBlockedThisTouch; |
| private ScreenDecorations mScreenDecorations; |
| |
| private Handler mHandler = Dependency.get(Dependency.MAIN_HANDLER); |
| |
| private final OverviewProxyListener mOverviewProxyListener = new OverviewProxyListener() { |
| @Override |
| public void onConnectionChanged(boolean isConnected) { |
| mNavigationBarView.updateStates(); |
| updateScreenPinningGestures(); |
| |
| // Send the assistant availability upon connection |
| if (isConnected) { |
| sendAssistantAvailability(mAssistantAvailable); |
| } |
| } |
| |
| @Override |
| public void onQuickStepStarted() { |
| // Use navbar dragging as a signal to hide the rotate button |
| mNavigationBarView.getRotationButtonController().setRotateSuggestionButtonState(false); |
| |
| // Hide the notifications panel when quick step starts |
| mStatusBar.collapsePanel(true /* animate */); |
| } |
| |
| @Override |
| public void startAssistant(Bundle bundle) { |
| mAssistManager.startAssist(bundle); |
| } |
| |
| @Override |
| public void onNavBarButtonAlphaChanged(float alpha, boolean animate) { |
| ButtonDispatcher buttonDispatcher = null; |
| if (QuickStepContract.isSwipeUpMode(mNavBarMode)) { |
| buttonDispatcher = mNavigationBarView.getBackButton(); |
| } else if (QuickStepContract.isGesturalMode(mNavBarMode)) { |
| buttonDispatcher = mNavigationBarView.getHomeHandle(); |
| } |
| if (buttonDispatcher != null) { |
| buttonDispatcher.setVisibility(alpha > 0 ? View.VISIBLE : View.INVISIBLE); |
| buttonDispatcher.setAlpha(alpha, animate); |
| } |
| } |
| }; |
| |
| private final ContextButtonListener mRotationButtonListener = (button, visible) -> { |
| if (visible) { |
| // If the button will actually become visible and the navbar is about to hide, |
| // tell the statusbar to keep it around for longer |
| mAutoHideController.touchAutoHide(); |
| } |
| }; |
| |
| private final Runnable mAutoDim = () -> getBarTransitions().setAutoDim(true); |
| |
| private final ContentObserver mAssistContentObserver = new ContentObserver( |
| new Handler(Looper.getMainLooper())) { |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| boolean available = mAssistManager |
| .getAssistInfoForUser(UserHandle.USER_CURRENT) != null; |
| if (mAssistantAvailable != available) { |
| sendAssistantAvailability(available); |
| mAssistantAvailable = available; |
| } |
| } |
| }; |
| |
| @Inject |
| public NavigationBarFragment(AccessibilityManagerWrapper accessibilityManagerWrapper, |
| DeviceProvisionedController deviceProvisionedController, MetricsLogger metricsLogger, |
| AssistManager assistManager, OverviewProxyService overviewProxyService, |
| NavigationModeController navigationModeController, |
| StatusBarStateController statusBarStateController) { |
| mAccessibilityManagerWrapper = accessibilityManagerWrapper; |
| mDeviceProvisionedController = deviceProvisionedController; |
| mStatusBarStateController = statusBarStateController; |
| mMetricsLogger = metricsLogger; |
| mAssistManager = assistManager; |
| mAssistantAvailable = mAssistManager.getAssistInfoForUser(UserHandle.USER_CURRENT) != null; |
| mOverviewProxyService = overviewProxyService; |
| mNavBarMode = navigationModeController.addListener(this); |
| } |
| |
| // ----- Fragment Lifecycle Callbacks ----- |
| |
| @Override |
| public void onCreate(@Nullable Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| mCommandQueue = SysUiServiceProvider.getComponent(getContext(), CommandQueue.class); |
| mCommandQueue.observe(getLifecycle(), this); |
| mStatusBar = SysUiServiceProvider.getComponent(getContext(), StatusBar.class); |
| mRecents = SysUiServiceProvider.getComponent(getContext(), Recents.class); |
| mDivider = SysUiServiceProvider.getComponent(getContext(), Divider.class); |
| mWindowManager = getContext().getSystemService(WindowManager.class); |
| mAccessibilityManager = getContext().getSystemService(AccessibilityManager.class); |
| mContentResolver = getContext().getContentResolver(); |
| mMagnificationObserver = new MagnificationContentObserver( |
| getContext().getMainThreadHandler()); |
| mContentResolver.registerContentObserver(Settings.Secure.getUriFor( |
| Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED), false, |
| mMagnificationObserver, UserHandle.USER_ALL); |
| mContentResolver.registerContentObserver( |
| Settings.Secure.getUriFor(Settings.Secure.ASSISTANT), |
| false /* notifyForDescendants */, mAssistContentObserver, UserHandle.USER_ALL); |
| |
| if (savedInstanceState != null) { |
| mDisabledFlags1 = savedInstanceState.getInt(EXTRA_DISABLE_STATE, 0); |
| mDisabledFlags2 = savedInstanceState.getInt(EXTRA_DISABLE2_STATE, 0); |
| mSystemUiVisibility = savedInstanceState.getInt(EXTRA_SYSTEM_UI_VISIBILITY, 0); |
| } |
| mAccessibilityManagerWrapper.addCallback(mAccessibilityListener); |
| |
| // Respect the latest disabled-flags. |
| mCommandQueue.recomputeDisableFlags(mDisplayId, false); |
| } |
| |
| @Override |
| public void onDestroy() { |
| super.onDestroy(); |
| mAccessibilityManagerWrapper.removeCallback(mAccessibilityListener); |
| mContentResolver.unregisterContentObserver(mMagnificationObserver); |
| mContentResolver.unregisterContentObserver(mAssistContentObserver); |
| } |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, |
| Bundle savedInstanceState) { |
| return inflater.inflate(R.layout.navigation_bar, container, false); |
| } |
| |
| @Override |
| public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { |
| super.onViewCreated(view, savedInstanceState); |
| mNavigationBarView = (NavigationBarView) view; |
| final Display display = view.getDisplay(); |
| // It may not have display when running unit test. |
| if (display != null) { |
| mDisplayId = display.getDisplayId(); |
| mIsOnDefaultDisplay = mDisplayId == Display.DEFAULT_DISPLAY; |
| } |
| |
| mNavigationBarView.setComponents(mStatusBar.getPanel(), mAssistManager); |
| mNavigationBarView.setDisabledFlags(mDisabledFlags1); |
| mNavigationBarView.setOnVerticalChangedListener(this::onVerticalChanged); |
| mNavigationBarView.setOnTouchListener(this::onNavigationTouch); |
| if (savedInstanceState != null) { |
| mNavigationBarView.getLightTransitionsController().restoreState(savedInstanceState); |
| } |
| mNavigationBarView.setNavigationIconHints(mNavigationIconHints); |
| mNavigationBarView.setWindowVisible(isNavBarWindowVisible()); |
| |
| prepareNavigationBarView(); |
| checkNavBarModes(); |
| |
| IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF); |
| filter.addAction(Intent.ACTION_SCREEN_ON); |
| filter.addAction(Intent.ACTION_USER_SWITCHED); |
| getContext().registerReceiverAsUser(mBroadcastReceiver, UserHandle.ALL, filter, null, null); |
| notifyNavigationBarScreenOn(); |
| |
| mOverviewProxyService.addCallback(mOverviewProxyListener); |
| updateSystemUiStateFlags(-1); |
| |
| // Currently there is no accelerometer sensor on non-default display. |
| if (mIsOnDefaultDisplay) { |
| mNavigationBarView.getRotateSuggestionButton().setListener(mRotationButtonListener); |
| |
| final RotationButtonController rotationButtonController = |
| mNavigationBarView.getRotationButtonController(); |
| rotationButtonController.addRotationCallback(mRotationWatcher); |
| |
| // Reset user rotation pref to match that of the WindowManager if starting in locked |
| // mode. This will automatically happen when switching from auto-rotate to locked mode. |
| if (display != null && rotationButtonController.isRotationLocked()) { |
| rotationButtonController.setRotationLockedAtAngle(display.getRotation()); |
| } |
| } else { |
| mDisabledFlags2 |= StatusBarManager.DISABLE2_ROTATE_SUGGESTIONS; |
| } |
| setDisabled2Flags(mDisabledFlags2); |
| |
| mScreenDecorations = SysUiServiceProvider.getComponent(getContext(), |
| ScreenDecorations.class); |
| getBarTransitions().addDarkIntensityListener(mScreenDecorations); |
| } |
| |
| @Override |
| public void onDestroyView() { |
| super.onDestroyView(); |
| if (mNavigationBarView != null) { |
| mNavigationBarView.getBarTransitions().removeDarkIntensityListener(mScreenDecorations); |
| mNavigationBarView.getBarTransitions().destroy(); |
| mNavigationBarView.getLightTransitionsController().destroy(getContext()); |
| } |
| mOverviewProxyService.removeCallback(mOverviewProxyListener); |
| getContext().unregisterReceiver(mBroadcastReceiver); |
| } |
| |
| @Override |
| public void onSaveInstanceState(Bundle outState) { |
| super.onSaveInstanceState(outState); |
| outState.putInt(EXTRA_DISABLE_STATE, mDisabledFlags1); |
| outState.putInt(EXTRA_DISABLE2_STATE, mDisabledFlags2); |
| outState.putInt(EXTRA_SYSTEM_UI_VISIBILITY, mSystemUiVisibility); |
| if (mNavigationBarView != null) { |
| mNavigationBarView.getLightTransitionsController().saveState(outState); |
| } |
| } |
| |
| @Override |
| public void onConfigurationChanged(Configuration newConfig) { |
| super.onConfigurationChanged(newConfig); |
| final Locale locale = getContext().getResources().getConfiguration().locale; |
| final int ld = TextUtils.getLayoutDirectionFromLocale(locale); |
| if (!locale.equals(mLocale) || ld != mLayoutDirection) { |
| if (DEBUG) { |
| Log.v(TAG, String.format( |
| "config changed locale/LD: %s (%d) -> %s (%d)", mLocale, mLayoutDirection, |
| locale, ld)); |
| } |
| mLocale = locale; |
| mLayoutDirection = ld; |
| refreshLayout(ld); |
| } |
| repositionNavigationBar(); |
| } |
| |
| @Override |
| public void dump(String prefix, FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (mNavigationBarView != null) { |
| pw.print(" mNavigationBarWindowState="); |
| pw.println(windowStateToString(mNavigationBarWindowState)); |
| pw.print(" mNavigationBarMode="); |
| pw.println(BarTransitions.modeToString(mNavigationBarMode)); |
| dumpBarTransitions(pw, "mNavigationBarView", mNavigationBarView.getBarTransitions()); |
| } |
| |
| pw.print(" mNavigationBarView="); |
| if (mNavigationBarView == null) { |
| pw.println("null"); |
| } else { |
| mNavigationBarView.dump(fd, pw, args); |
| } |
| } |
| |
| // ----- CommandQueue Callbacks ----- |
| |
| @Override |
| public void setImeWindowStatus(int displayId, IBinder token, int vis, int backDisposition, |
| boolean showImeSwitcher) { |
| if (displayId != mDisplayId) { |
| return; |
| } |
| boolean imeShown = (vis & InputMethodService.IME_VISIBLE) != 0; |
| int hints = mNavigationIconHints; |
| switch (backDisposition) { |
| case InputMethodService.BACK_DISPOSITION_DEFAULT: |
| case InputMethodService.BACK_DISPOSITION_WILL_NOT_DISMISS: |
| case InputMethodService.BACK_DISPOSITION_WILL_DISMISS: |
| if (imeShown) { |
| hints |= NAVIGATION_HINT_BACK_ALT; |
| } else { |
| hints &= ~NAVIGATION_HINT_BACK_ALT; |
| } |
| break; |
| case InputMethodService.BACK_DISPOSITION_ADJUST_NOTHING: |
| hints &= ~NAVIGATION_HINT_BACK_ALT; |
| break; |
| } |
| if (showImeSwitcher) { |
| hints |= NAVIGATION_HINT_IME_SHOWN; |
| } else { |
| hints &= ~NAVIGATION_HINT_IME_SHOWN; |
| } |
| if (hints == mNavigationIconHints) return; |
| |
| mNavigationIconHints = hints; |
| |
| if (mNavigationBarView != null) { |
| mNavigationBarView.setNavigationIconHints(hints); |
| } |
| checkBarModes(); |
| } |
| |
| @Override |
| public void setWindowState( |
| int displayId, @WindowType int window, @WindowVisibleState int state) { |
| if (displayId == mDisplayId |
| && mNavigationBarView != null |
| && window == StatusBarManager.WINDOW_NAVIGATION_BAR |
| && mNavigationBarWindowState != state) { |
| mNavigationBarWindowState = state; |
| if (DEBUG_WINDOW_STATE) Log.d(TAG, "Navigation bar " + windowStateToString(state)); |
| |
| updateSystemUiStateFlags(-1); |
| mNavigationBarView.setWindowVisible(isNavBarWindowVisible()); |
| } |
| } |
| |
| @Override |
| public void onRotationProposal(final int rotation, boolean isValid) { |
| final int winRotation = mNavigationBarView.getDisplay().getRotation(); |
| final boolean rotateSuggestionsDisabled = RotationButtonController |
| .hasDisable2RotateSuggestionFlag(mDisabledFlags2); |
| final RotationButtonController rotationButtonController = |
| mNavigationBarView.getRotationButtonController(); |
| final RotationButton rotationButton = rotationButtonController.getRotationButton(); |
| |
| if (RotationContextButton.DEBUG_ROTATION) { |
| Log.v(TAG, "onRotationProposal proposedRotation=" + Surface.rotationToString(rotation) |
| + ", winRotation=" + Surface.rotationToString(winRotation) |
| + ", isValid=" + isValid + ", mNavBarWindowState=" |
| + StatusBarManager.windowStateToString(mNavigationBarWindowState) |
| + ", rotateSuggestionsDisabled=" + rotateSuggestionsDisabled |
| + ", isRotateButtonVisible=" + (mNavigationBarView == null ? "null" |
| : rotationButton.isVisible())); |
| } |
| |
| // Respect the disabled flag, no need for action as flag change callback will handle hiding |
| if (rotateSuggestionsDisabled) return; |
| |
| rotationButtonController.onRotationProposal(rotation, winRotation, isValid); |
| } |
| |
| /** Restores the System UI flags saved state to {@link NavigationBarFragment}. */ |
| public void restoreSystemUiVisibilityState() { |
| final int barMode = computeBarMode(0, mSystemUiVisibility); |
| if (barMode != -1) { |
| mNavigationBarMode = barMode; |
| } |
| checkNavBarModes(); |
| mAutoHideController.touchAutoHide(); |
| |
| mLightBarController.onNavigationVisibilityChanged(mSystemUiVisibility, 0 /* mask */, |
| true /* nbModeChanged */, mNavigationBarMode, false /* navbarColorManagedByIme */); |
| } |
| |
| @Override |
| public void setSystemUiVisibility(int displayId, int vis, int fullscreenStackVis, |
| int dockedStackVis, int mask, Rect fullscreenStackBounds, Rect dockedStackBounds, |
| boolean navbarColorManagedByIme) { |
| if (displayId != mDisplayId) { |
| return; |
| } |
| final int oldVal = mSystemUiVisibility; |
| final int newVal = (oldVal & ~mask) | (vis & mask); |
| final int diff = newVal ^ oldVal; |
| boolean nbModeChanged = false; |
| if (diff != 0) { |
| mSystemUiVisibility = newVal; |
| |
| // update navigation bar mode |
| final int nbMode = getView() == null |
| ? -1 : computeBarMode(oldVal, newVal); |
| nbModeChanged = nbMode != -1; |
| if (nbModeChanged) { |
| if (mNavigationBarMode != nbMode) { |
| if (mNavigationBarMode == MODE_TRANSPARENT |
| || mNavigationBarMode == MODE_LIGHTS_OUT_TRANSPARENT) { |
| mNavigationBarView.hideRecentsOnboarding(); |
| } |
| mNavigationBarMode = nbMode; |
| checkNavBarModes(); |
| } |
| mAutoHideController.touchAutoHide(); |
| } |
| if (mNavigationBarView != null) { |
| mNavigationBarView.onSystemUiVisibilityChanged(mSystemUiVisibility); |
| } |
| } |
| mLightBarController.onNavigationVisibilityChanged( |
| vis, mask, nbModeChanged, mNavigationBarMode, navbarColorManagedByIme); |
| } |
| |
| private @TransitionMode int computeBarMode(int oldVis, int newVis) { |
| final int oldMode = barMode(oldVis); |
| final int newMode = barMode(newVis); |
| if (oldMode == newMode) { |
| return -1; // no mode change |
| } |
| return newMode; |
| } |
| |
| private @TransitionMode int barMode(int vis) { |
| final int lightsOutTransparent = |
| View.SYSTEM_UI_FLAG_LOW_PROFILE | View.NAVIGATION_BAR_TRANSIENT; |
| if ((vis & View.NAVIGATION_BAR_TRANSIENT) != 0) { |
| return MODE_SEMI_TRANSPARENT; |
| } else if ((vis & View.NAVIGATION_BAR_TRANSLUCENT) != 0) { |
| return MODE_TRANSLUCENT; |
| } else if ((vis & lightsOutTransparent) == lightsOutTransparent) { |
| return MODE_LIGHTS_OUT_TRANSPARENT; |
| } else if ((vis & View.NAVIGATION_BAR_TRANSPARENT) != 0) { |
| return MODE_TRANSPARENT; |
| } else if ((vis & View.SYSTEM_UI_FLAG_LOW_PROFILE) != 0) { |
| return MODE_LIGHTS_OUT; |
| } else { |
| return MODE_OPAQUE; |
| } |
| } |
| |
| @Override |
| public void disable(int displayId, int state1, int state2, boolean animate) { |
| if (displayId != mDisplayId) { |
| return; |
| } |
| // Navigation bar flags are in both state1 and state2. |
| final int masked = state1 & (StatusBarManager.DISABLE_HOME |
| | StatusBarManager.DISABLE_RECENT |
| | StatusBarManager.DISABLE_BACK |
| | StatusBarManager.DISABLE_SEARCH); |
| if (masked != mDisabledFlags1) { |
| mDisabledFlags1 = masked; |
| if (mNavigationBarView != null) { |
| mNavigationBarView.setDisabledFlags(state1); |
| } |
| updateScreenPinningGestures(); |
| } |
| |
| // Only default display supports rotation suggestions. |
| if (mIsOnDefaultDisplay) { |
| final int masked2 = state2 & (StatusBarManager.DISABLE2_ROTATE_SUGGESTIONS); |
| if (masked2 != mDisabledFlags2) { |
| mDisabledFlags2 = masked2; |
| setDisabled2Flags(masked2); |
| } |
| } |
| } |
| |
| private void setDisabled2Flags(int state2) { |
| // Method only called on change of disable2 flags |
| if (mNavigationBarView != null) { |
| mNavigationBarView.getRotationButtonController().onDisable2FlagChanged(state2); |
| } |
| } |
| |
| // ----- Internal stuff ----- |
| |
| private void refreshLayout(int layoutDirection) { |
| if (mNavigationBarView != null) { |
| mNavigationBarView.setLayoutDirection(layoutDirection); |
| } |
| } |
| |
| private boolean shouldDisableNavbarGestures() { |
| return !mDeviceProvisionedController.isDeviceProvisioned() |
| || (mDisabledFlags1 & StatusBarManager.DISABLE_SEARCH) != 0; |
| } |
| |
| private void repositionNavigationBar() { |
| if (mNavigationBarView == null || !mNavigationBarView.isAttachedToWindow()) return; |
| |
| prepareNavigationBarView(); |
| |
| mWindowManager.updateViewLayout((View) mNavigationBarView.getParent(), |
| ((View) mNavigationBarView.getParent()).getLayoutParams()); |
| } |
| |
| private void updateScreenPinningGestures() { |
| if (mNavigationBarView == null) { |
| return; |
| } |
| |
| // Change the cancel pin gesture to home and back if recents button is invisible |
| boolean recentsVisible = mNavigationBarView.isRecentsButtonVisible(); |
| ButtonDispatcher backButton = mNavigationBarView.getBackButton(); |
| if (recentsVisible) { |
| backButton.setOnLongClickListener(this::onLongPressBackRecents); |
| } else { |
| backButton.setOnLongClickListener(this::onLongPressBackHome); |
| } |
| } |
| |
| private void notifyNavigationBarScreenOn() { |
| mNavigationBarView.updateNavButtonIcons(); |
| } |
| |
| private void prepareNavigationBarView() { |
| mNavigationBarView.reorient(); |
| |
| ButtonDispatcher recentsButton = mNavigationBarView.getRecentsButton(); |
| recentsButton.setOnClickListener(this::onRecentsClick); |
| recentsButton.setOnTouchListener(this::onRecentsTouch); |
| recentsButton.setLongClickable(true); |
| recentsButton.setOnLongClickListener(this::onLongPressBackRecents); |
| |
| ButtonDispatcher backButton = mNavigationBarView.getBackButton(); |
| backButton.setLongClickable(true); |
| |
| ButtonDispatcher homeButton = mNavigationBarView.getHomeButton(); |
| homeButton.setOnTouchListener(this::onHomeTouch); |
| homeButton.setOnLongClickListener(this::onHomeLongClick); |
| |
| ButtonDispatcher accessibilityButton = mNavigationBarView.getAccessibilityButton(); |
| accessibilityButton.setOnClickListener(this::onAccessibilityClick); |
| accessibilityButton.setOnLongClickListener(this::onAccessibilityLongClick); |
| updateAccessibilityServicesState(mAccessibilityManager); |
| |
| updateScreenPinningGestures(); |
| } |
| |
| private boolean onHomeTouch(View v, MotionEvent event) { |
| if (mHomeBlockedThisTouch && event.getActionMasked() != MotionEvent.ACTION_DOWN) { |
| return true; |
| } |
| // If an incoming call is ringing, HOME is totally disabled. |
| // (The user is already on the InCallUI at this point, |
| // and his ONLY options are to answer or reject the call.) |
| switch (event.getAction()) { |
| case MotionEvent.ACTION_DOWN: |
| mHomeBlockedThisTouch = false; |
| TelecomManager telecomManager = |
| getContext().getSystemService(TelecomManager.class); |
| if (telecomManager != null && telecomManager.isRinging()) { |
| if (mStatusBar.isKeyguardShowing()) { |
| Log.i(TAG, "Ignoring HOME; there's a ringing incoming call. " + |
| "No heads up"); |
| mHomeBlockedThisTouch = true; |
| return true; |
| } |
| } |
| break; |
| case MotionEvent.ACTION_UP: |
| case MotionEvent.ACTION_CANCEL: |
| mStatusBar.awakenDreams(); |
| break; |
| } |
| return false; |
| } |
| |
| private void onVerticalChanged(boolean isVertical) { |
| mStatusBar.setQsScrimEnabled(!isVertical); |
| } |
| |
| private boolean onNavigationTouch(View v, MotionEvent event) { |
| mAutoHideController.checkUserAutoHide(event); |
| return false; |
| } |
| |
| @VisibleForTesting |
| boolean onHomeLongClick(View v) { |
| if (!mNavigationBarView.isRecentsButtonVisible() |
| && ActivityManagerWrapper.getInstance().isScreenPinningActive()) { |
| return onLongPressBackHome(v); |
| } |
| if (shouldDisableNavbarGestures()) { |
| return false; |
| } |
| mMetricsLogger.action(MetricsEvent.ACTION_ASSIST_LONG_PRESS); |
| Bundle args = new Bundle(); |
| args.putInt( |
| AssistManager.INVOCATION_TYPE_KEY, AssistManager.INVOCATION_HOME_BUTTON_LONG_PRESS); |
| mAssistManager.startAssist(args); |
| mStatusBar.awakenDreams(); |
| |
| if (mNavigationBarView != null) { |
| mNavigationBarView.abortCurrentGesture(); |
| } |
| return true; |
| } |
| |
| // additional optimization when we have software system buttons - start loading the recent |
| // tasks on touch down |
| private boolean onRecentsTouch(View v, MotionEvent event) { |
| int action = event.getAction() & MotionEvent.ACTION_MASK; |
| if (action == MotionEvent.ACTION_DOWN) { |
| mCommandQueue.preloadRecentApps(); |
| } else if (action == MotionEvent.ACTION_CANCEL) { |
| mCommandQueue.cancelPreloadRecentApps(); |
| } else if (action == MotionEvent.ACTION_UP) { |
| if (!v.isPressed()) { |
| mCommandQueue.cancelPreloadRecentApps(); |
| } |
| } |
| return false; |
| } |
| |
| private void onRecentsClick(View v) { |
| if (LatencyTracker.isEnabled(getContext())) { |
| LatencyTracker.getInstance(getContext()).onActionStart( |
| LatencyTracker.ACTION_TOGGLE_RECENTS); |
| } |
| mStatusBar.awakenDreams(); |
| mCommandQueue.toggleRecentApps(); |
| } |
| |
| private boolean onLongPressBackHome(View v) { |
| return onLongPressNavigationButtons(v, R.id.back, R.id.home); |
| } |
| |
| private boolean onLongPressBackRecents(View v) { |
| return onLongPressNavigationButtons(v, R.id.back, R.id.recent_apps); |
| } |
| |
| /** |
| * This handles long-press of both back and recents/home. Back is the common button with |
| * combination of recents if it is visible or home if recents is invisible. |
| * They are handled together to capture them both being long-pressed |
| * at the same time to exit screen pinning (lock task). |
| * |
| * When accessibility mode is on, only a long-press from recents/home |
| * is required to exit. |
| * |
| * In all other circumstances we try to pass through long-press events |
| * for Back, so that apps can still use it. Which can be from two things. |
| * 1) Not currently in screen pinning (lock task). |
| * 2) Back is long-pressed without recents/home. |
| */ |
| private boolean onLongPressNavigationButtons(View v, @IdRes int btnId1, @IdRes int btnId2) { |
| try { |
| boolean sendBackLongPress = false; |
| IActivityTaskManager activityManager = ActivityTaskManager.getService(); |
| boolean touchExplorationEnabled = mAccessibilityManager.isTouchExplorationEnabled(); |
| boolean inLockTaskMode = activityManager.isInLockTaskMode(); |
| boolean stopLockTaskMode = false; |
| try { |
| if (inLockTaskMode && !touchExplorationEnabled) { |
| long time = System.currentTimeMillis(); |
| |
| // If we recently long-pressed the other button then they were |
| // long-pressed 'together' |
| if ((time - mLastLockToAppLongPress) < LOCK_TO_APP_GESTURE_TOLERENCE) { |
| stopLockTaskMode = true; |
| return true; |
| } else if (v.getId() == btnId1) { |
| ButtonDispatcher button = btnId2 == R.id.recent_apps |
| ? mNavigationBarView.getRecentsButton() |
| : mNavigationBarView.getHomeButton(); |
| if (!button.getCurrentView().isPressed()) { |
| // If we aren't pressing recents/home right now then they presses |
| // won't be together, so send the standard long-press action. |
| sendBackLongPress = true; |
| } |
| } |
| mLastLockToAppLongPress = time; |
| } else { |
| // If this is back still need to handle sending the long-press event. |
| if (v.getId() == btnId1) { |
| sendBackLongPress = true; |
| } else if (touchExplorationEnabled && inLockTaskMode) { |
| // When in accessibility mode a long press that is recents/home (not back) |
| // should stop lock task. |
| stopLockTaskMode = true; |
| return true; |
| } else if (v.getId() == btnId2) { |
| return btnId2 == R.id.recent_apps |
| ? onLongPressRecents() |
| : onHomeLongClick( |
| mNavigationBarView.getHomeButton().getCurrentView()); |
| } |
| } |
| } finally { |
| if (stopLockTaskMode) { |
| activityManager.stopSystemLockTaskMode(); |
| // When exiting refresh disabled flags. |
| mNavigationBarView.updateNavButtonIcons(); |
| } |
| } |
| |
| if (sendBackLongPress) { |
| KeyButtonView keyButtonView = (KeyButtonView) v; |
| keyButtonView.sendEvent(KeyEvent.ACTION_DOWN, KeyEvent.FLAG_LONG_PRESS); |
| keyButtonView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_LONG_CLICKED); |
| return true; |
| } |
| } catch (RemoteException e) { |
| Log.d(TAG, "Unable to reach activity manager", e); |
| } |
| return false; |
| } |
| |
| private boolean onLongPressRecents() { |
| if (mRecents == null || !ActivityTaskManager.supportsMultiWindow(getContext()) |
| || !mDivider.getView().getSnapAlgorithm().isSplitScreenFeasible() |
| || ActivityManager.isLowRamDeviceStatic() |
| // If we are connected to the overview service, then disable the recents button |
| || mOverviewProxyService.getProxy() != null) { |
| return false; |
| } |
| |
| return mStatusBar.toggleSplitScreenMode(MetricsEvent.ACTION_WINDOW_DOCK_LONGPRESS, |
| MetricsEvent.ACTION_WINDOW_UNDOCK_LONGPRESS); |
| } |
| |
| private void onAccessibilityClick(View v) { |
| final Display display = v.getDisplay(); |
| mAccessibilityManager.notifyAccessibilityButtonClicked( |
| display != null ? display.getDisplayId() : Display.DEFAULT_DISPLAY); |
| } |
| |
| private boolean onAccessibilityLongClick(View v) { |
| Intent intent = new Intent(AccessibilityManager.ACTION_CHOOSE_ACCESSIBILITY_BUTTON); |
| intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); |
| v.getContext().startActivityAsUser(intent, UserHandle.CURRENT); |
| return true; |
| } |
| |
| private void updateAccessibilityServicesState(AccessibilityManager accessibilityManager) { |
| boolean[] feedbackEnabled = new boolean[1]; |
| int a11yFlags = getA11yButtonState(feedbackEnabled); |
| |
| boolean clickable = (a11yFlags & SYSUI_STATE_A11Y_BUTTON_CLICKABLE) != 0; |
| boolean longClickable = (a11yFlags & SYSUI_STATE_A11Y_BUTTON_LONG_CLICKABLE) != 0; |
| mNavigationBarView.setAccessibilityButtonState(clickable, longClickable); |
| |
| updateSystemUiStateFlags(a11yFlags); |
| } |
| |
| public void updateSystemUiStateFlags(int a11yFlags) { |
| if (a11yFlags < 0) { |
| a11yFlags = getA11yButtonState(null); |
| } |
| boolean clickable = (a11yFlags & SYSUI_STATE_A11Y_BUTTON_CLICKABLE) != 0; |
| boolean longClickable = (a11yFlags & SYSUI_STATE_A11Y_BUTTON_LONG_CLICKABLE) != 0; |
| mOverviewProxyService.setSystemUiStateFlag(SYSUI_STATE_A11Y_BUTTON_CLICKABLE, |
| clickable, mDisplayId); |
| mOverviewProxyService.setSystemUiStateFlag(SYSUI_STATE_A11Y_BUTTON_LONG_CLICKABLE, |
| longClickable, mDisplayId); |
| mOverviewProxyService.setSystemUiStateFlag(SYSUI_STATE_NAV_BAR_HIDDEN, |
| !isNavBarWindowVisible(), mDisplayId); |
| } |
| |
| /** |
| * Returns the system UI flags corresponding the the current accessibility button state |
| * @param outFeedbackEnabled if non-null, sets it to true if accessibility feedback is enabled. |
| */ |
| public int getA11yButtonState(@Nullable boolean[] outFeedbackEnabled) { |
| int requestingServices = 0; |
| try { |
| if (Settings.Secure.getIntForUser(mContentResolver, |
| Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED, |
| UserHandle.USER_CURRENT) == 1) { |
| requestingServices++; |
| } |
| } catch (Settings.SettingNotFoundException e) { |
| } |
| |
| boolean feedbackEnabled = false; |
| // AccessibilityManagerService resolves services for the current user since the local |
| // AccessibilityManager is created from a Context with the INTERACT_ACROSS_USERS permission |
| final List<AccessibilityServiceInfo> services = |
| mAccessibilityManager.getEnabledAccessibilityServiceList( |
| AccessibilityServiceInfo.FEEDBACK_ALL_MASK); |
| for (int i = services.size() - 1; i >= 0; --i) { |
| AccessibilityServiceInfo info = services.get(i); |
| if ((info.flags & AccessibilityServiceInfo.FLAG_REQUEST_ACCESSIBILITY_BUTTON) != 0) { |
| requestingServices++; |
| } |
| |
| if (info.feedbackType != 0 && info.feedbackType != |
| AccessibilityServiceInfo.FEEDBACK_GENERIC) { |
| feedbackEnabled = true; |
| } |
| } |
| |
| if (outFeedbackEnabled != null) { |
| outFeedbackEnabled[0] = feedbackEnabled; |
| } |
| |
| return (requestingServices >= 1 ? SYSUI_STATE_A11Y_BUTTON_CLICKABLE : 0) |
| | (requestingServices >= 2 ? SYSUI_STATE_A11Y_BUTTON_LONG_CLICKABLE : 0); |
| } |
| |
| private void sendAssistantAvailability(boolean available) { |
| if (mOverviewProxyService.getProxy() != null) { |
| try { |
| mOverviewProxyService.getProxy().onAssistantAvailable(available |
| && QuickStepContract.isGesturalMode(mNavBarMode)); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Unable to send assistant availability data to launcher"); |
| } |
| } |
| } |
| |
| // ----- Methods that DisplayNavigationBarController talks to ----- |
| |
| /** Applies auto dimming animation on navigation bar when touched. */ |
| public void touchAutoDim() { |
| getBarTransitions().setAutoDim(false); |
| mHandler.removeCallbacks(mAutoDim); |
| int state = mStatusBarStateController.getState(); |
| if (state != StatusBarState.KEYGUARD && state != StatusBarState.SHADE_LOCKED) { |
| mHandler.postDelayed(mAutoDim, AUTODIM_TIMEOUT_MS); |
| } |
| } |
| |
| public void setLightBarController(LightBarController lightBarController) { |
| mLightBarController = lightBarController; |
| mLightBarController.setNavigationBar(mNavigationBarView.getLightTransitionsController()); |
| } |
| |
| /** Sets {@link AutoHideController} to the navigation bar. */ |
| public void setAutoHideController(AutoHideController autoHideController) { |
| mAutoHideController = autoHideController; |
| mAutoHideController.setNavigationBar(this); |
| } |
| |
| public boolean isSemiTransparent() { |
| return mNavigationBarMode == MODE_SEMI_TRANSPARENT; |
| } |
| |
| private void checkBarModes() { |
| // We only have status bar on default display now. |
| if (mIsOnDefaultDisplay) { |
| mStatusBar.checkBarModes(); |
| } else { |
| checkNavBarModes(); |
| } |
| } |
| |
| public boolean isNavBarWindowVisible() { |
| return mNavigationBarWindowState == WINDOW_STATE_SHOWING; |
| } |
| |
| /** |
| * Checks current navigation bar mode and make transitions. |
| */ |
| public void checkNavBarModes() { |
| final boolean anim = mStatusBar.isDeviceInteractive() |
| && mNavigationBarWindowState != WINDOW_STATE_HIDDEN; |
| mNavigationBarView.getBarTransitions().transitionTo(mNavigationBarMode, anim); |
| } |
| |
| @Override |
| public void onNavigationModeChanged(int mode) { |
| mNavBarMode = mode; |
| updateScreenPinningGestures(); |
| |
| // Workaround for b/132825155, for secondary users, we currently don't receive configuration |
| // changes on overlay package change since SystemUI runs for the system user. In this case, |
| // trigger a new configuration change to ensure that the nav bar is updated in the same way. |
| int userId = ActivityManagerWrapper.getInstance().getCurrentUserId(); |
| if (userId != UserHandle.USER_SYSTEM) { |
| mHandler.post(() -> { |
| FragmentHostManager fragmentHost = FragmentHostManager.get(mNavigationBarView); |
| fragmentHost.reloadFragments(); |
| }); |
| } |
| } |
| |
| public void disableAnimationsDuringHide(long delay) { |
| mNavigationBarView.setLayoutTransitionsEnabled(false); |
| mNavigationBarView.postDelayed(() -> mNavigationBarView.setLayoutTransitionsEnabled(true), |
| delay + StackStateAnimator.ANIMATION_DURATION_GO_TO_FULL_SHADE); |
| } |
| |
| /** |
| * Performs transitions on navigation bar. |
| * |
| * @param barMode transition bar mode. |
| * @param animate shows animations if {@code true}. |
| */ |
| public void transitionTo(@TransitionMode int barMode, boolean animate) { |
| getBarTransitions().transitionTo(barMode, animate); |
| } |
| |
| public NavigationBarTransitions getBarTransitions() { |
| return mNavigationBarView.getBarTransitions(); |
| } |
| |
| public void finishBarAnimations() { |
| mNavigationBarView.getBarTransitions().finishAnimations(); |
| } |
| |
| private final AccessibilityServicesStateChangeListener mAccessibilityListener = |
| this::updateAccessibilityServicesState; |
| |
| private class MagnificationContentObserver extends ContentObserver { |
| |
| public MagnificationContentObserver(Handler handler) { |
| super(handler); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange) { |
| NavigationBarFragment.this.updateAccessibilityServicesState(mAccessibilityManager); |
| } |
| } |
| |
| private final Consumer<Integer> mRotationWatcher = rotation -> { |
| if (mNavigationBarView != null |
| && mNavigationBarView.needsReorient(rotation)) { |
| repositionNavigationBar(); |
| } |
| }; |
| |
| private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (Intent.ACTION_SCREEN_OFF.equals(action) |
| || Intent.ACTION_SCREEN_ON.equals(action)) { |
| notifyNavigationBarScreenOn(); |
| |
| if (Intent.ACTION_SCREEN_ON.equals(action)) { |
| // Enabled and screen is on, start it again if enabled |
| if (NavBarTintController.isEnabled(getContext(), mNavBarMode)) { |
| mNavigationBarView.getTintController().start(); |
| } |
| } else { |
| // Screen off disable it |
| mNavigationBarView.getTintController().stop(); |
| } |
| } |
| if (Intent.ACTION_USER_SWITCHED.equals(action)) { |
| // The accessibility settings may be different for the new user |
| updateAccessibilityServicesState(mAccessibilityManager); |
| } |
| } |
| }; |
| |
| public static View create(Context context, FragmentListener listener) { |
| WindowManager.LayoutParams lp = new WindowManager.LayoutParams( |
| LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, |
| WindowManager.LayoutParams.TYPE_NAVIGATION_BAR, |
| WindowManager.LayoutParams.FLAG_TOUCHABLE_WHEN_WAKING |
| | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE |
| | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |
| | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH |
| | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH |
| | WindowManager.LayoutParams.FLAG_SLIPPERY, |
| PixelFormat.TRANSLUCENT); |
| lp.token = new Binder(); |
| lp.setTitle("NavigationBar" + context.getDisplayId()); |
| lp.accessibilityTitle = context.getString(R.string.nav_bar); |
| lp.windowAnimations = 0; |
| lp.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COLOR_SPACE_AGNOSTIC; |
| |
| View navigationBarView = LayoutInflater.from(context).inflate( |
| R.layout.navigation_bar_window, null); |
| |
| if (DEBUG) Log.v(TAG, "addNavigationBar: about to add " + navigationBarView); |
| if (navigationBarView == null) return null; |
| |
| final NavigationBarFragment fragment = FragmentHostManager.get(navigationBarView) |
| .create(NavigationBarFragment.class); |
| navigationBarView.addOnAttachStateChangeListener(new View.OnAttachStateChangeListener() { |
| @Override |
| public void onViewAttachedToWindow(View v) { |
| final FragmentHostManager fragmentHost = FragmentHostManager.get(v); |
| fragmentHost.getFragmentManager().beginTransaction() |
| .replace(R.id.navigation_bar_frame, fragment, TAG) |
| .commit(); |
| fragmentHost.addTagListener(TAG, listener); |
| } |
| |
| @Override |
| public void onViewDetachedFromWindow(View v) { |
| FragmentHostManager.removeAndDestroy(v); |
| } |
| }); |
| context.getSystemService(WindowManager.class).addView(navigationBarView, lp); |
| return navigationBarView; |
| } |
| |
| @VisibleForTesting |
| int getNavigationIconHints() { |
| return mNavigationIconHints; |
| } |
| } |
