| /* |
| * Copyright (C) 2014 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.recents; |
| |
| import static com.android.systemui.statusbar.phone.StatusBar.SYSTEM_DIALOG_REASON_HOME_KEY; |
| |
| import android.app.Activity; |
| import android.app.ActivityOptions; |
| import android.app.TaskStackBuilder; |
| import android.app.WallpaperManager; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.res.Configuration; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.util.Log; |
| import android.view.KeyEvent; |
| import android.view.View; |
| import android.view.ViewTreeObserver; |
| import android.view.ViewTreeObserver.OnPreDrawListener; |
| import android.view.WindowManager; |
| import android.view.WindowManager.LayoutParams; |
| |
| import com.android.internal.colorextraction.ColorExtractor; |
| import com.android.internal.content.PackageMonitor; |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.internal.logging.nano.MetricsProto.MetricsEvent; |
| import com.android.internal.util.LatencyTracker; |
| import com.android.systemui.DejankUtils; |
| import com.android.systemui.Dependency; |
| import com.android.systemui.Interpolators; |
| import com.android.systemui.R; |
| import com.android.systemui.colorextraction.SysuiColorExtractor; |
| import com.android.systemui.recents.events.EventBus; |
| import com.android.systemui.recents.events.activity.CancelEnterRecentsWindowAnimationEvent; |
| import com.android.systemui.recents.events.activity.ConfigurationChangedEvent; |
| import com.android.systemui.recents.events.activity.DismissRecentsToHomeAnimationStarted; |
| import com.android.systemui.recents.events.activity.DockedFirstAnimationFrameEvent; |
| import com.android.systemui.recents.events.activity.DockedTopTaskEvent; |
| import com.android.systemui.recents.events.activity.EnterRecentsWindowAnimationCompletedEvent; |
| import com.android.systemui.recents.events.activity.EnterRecentsWindowLastAnimationFrameEvent; |
| import com.android.systemui.recents.events.activity.ExitRecentsWindowFirstAnimationFrameEvent; |
| import com.android.systemui.recents.events.activity.HideRecentsEvent; |
| import com.android.systemui.recents.events.activity.LaunchTaskFailedEvent; |
| import com.android.systemui.recents.events.activity.LaunchTaskSucceededEvent; |
| import com.android.systemui.recents.events.activity.MultiWindowStateChangedEvent; |
| import com.android.systemui.recents.events.activity.PackagesChangedEvent; |
| import com.android.systemui.recents.events.activity.RecentsActivityStartingEvent; |
| import com.android.systemui.recents.events.activity.ToggleRecentsEvent; |
| import com.android.systemui.recents.events.component.ActivityUnpinnedEvent; |
| import com.android.systemui.recents.events.component.RecentsVisibilityChangedEvent; |
| import com.android.systemui.recents.events.component.ScreenPinningRequestEvent; |
| import com.android.systemui.recents.events.component.SetWaitingForTransitionStartEvent; |
| import com.android.systemui.recents.events.ui.AllTaskViewsDismissedEvent; |
| import com.android.systemui.recents.events.ui.DeleteTaskDataEvent; |
| import com.android.systemui.recents.events.ui.HideIncompatibleAppOverlayEvent; |
| import com.android.systemui.recents.events.ui.RecentsDrawnEvent; |
| import com.android.systemui.recents.events.ui.ShowApplicationInfoEvent; |
| import com.android.systemui.recents.events.ui.ShowIncompatibleAppOverlayEvent; |
| import com.android.systemui.recents.events.ui.StackViewScrolledEvent; |
| import com.android.systemui.recents.events.ui.TaskViewDismissedEvent; |
| import com.android.systemui.recents.events.ui.UserInteractionEvent; |
| import com.android.systemui.recents.events.ui.focus.DismissFocusedTaskViewEvent; |
| import com.android.systemui.recents.events.ui.focus.FocusNextTaskViewEvent; |
| import com.android.systemui.recents.events.ui.focus.FocusPreviousTaskViewEvent; |
| import com.android.systemui.recents.events.ui.focus.NavigateTaskViewEvent; |
| import com.android.systemui.recents.events.ui.focus.NavigateTaskViewEvent.Direction; |
| import com.android.systemui.recents.misc.SystemServicesProxy; |
| import com.android.systemui.shared.recents.utilities.Utilities; |
| import com.android.systemui.shared.recents.model.RecentsTaskLoadPlan; |
| import com.android.systemui.shared.recents.model.RecentsTaskLoader; |
| import com.android.systemui.shared.recents.model.Task; |
| import com.android.systemui.shared.recents.model.TaskStack; |
| import com.android.systemui.recents.views.RecentsView; |
| import com.android.systemui.recents.views.SystemBarScrimViews; |
| import com.android.systemui.shared.system.ActivityManagerWrapper; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| |
| /** |
| * The main Recents activity that is started from RecentsComponent. |
| */ |
| public class RecentsActivity extends Activity implements ViewTreeObserver.OnPreDrawListener, |
| ColorExtractor.OnColorsChangedListener { |
| |
| private final static String TAG = "RecentsActivity"; |
| private final static boolean DEBUG = false; |
| |
| public final static int EVENT_BUS_PRIORITY = Recents.EVENT_BUS_PRIORITY + 1; |
| public final static int INCOMPATIBLE_APP_ALPHA_DURATION = 150; |
| |
| private PackageMonitor mPackageMonitor = new PackageMonitor() { |
| @Override |
| public void onPackageRemoved(String packageName, int uid) { |
| RecentsActivity.this.onPackageChanged(packageName, getChangingUserId()); |
| } |
| |
| @Override |
| public boolean onPackageChanged(String packageName, int uid, String[] components) { |
| RecentsActivity.this.onPackageChanged(packageName, getChangingUserId()); |
| return true; |
| } |
| |
| @Override |
| public void onPackageModified(String packageName) { |
| RecentsActivity.this.onPackageChanged(packageName, getChangingUserId()); |
| } |
| }; |
| private Handler mHandler = new Handler(); |
| private long mLastTabKeyEventTime; |
| private boolean mFinishedOnStartup; |
| private boolean mIgnoreAltTabRelease; |
| private boolean mIsVisible; |
| private boolean mRecentsStartRequested; |
| private Configuration mLastConfig; |
| |
| // Top level views |
| private RecentsView mRecentsView; |
| private SystemBarScrimViews mScrimViews; |
| private View mIncompatibleAppOverlay; |
| |
| // Runnables to finish the Recents activity |
| private Intent mHomeIntent; |
| |
| // The trigger to automatically launch the current task |
| private int mFocusTimerDuration; |
| private final UserInteractionEvent mUserInteractionEvent = new UserInteractionEvent(); |
| |
| // Theme and colors |
| private SysuiColorExtractor mColorExtractor; |
| private boolean mUsingDarkText; |
| |
| /** |
| * A common Runnable to finish Recents by launching Home with an animation depending on the |
| * last activity launch state. Generally we always launch home when we exit Recents rather than |
| * just finishing the activity since we don't know what is behind Recents in the task stack. |
| */ |
| class LaunchHomeRunnable implements Runnable { |
| |
| Intent mLaunchIntent; |
| ActivityOptions mOpts; |
| |
| /** |
| * Creates a finish runnable that starts the specified intent. |
| */ |
| public LaunchHomeRunnable(Intent launchIntent, ActivityOptions opts) { |
| mLaunchIntent = launchIntent; |
| mOpts = opts; |
| } |
| |
| @Override |
| public void run() { |
| try { |
| mHandler.post(() -> { |
| ActivityOptions opts = mOpts; |
| if (opts == null) { |
| opts = ActivityOptions.makeCustomAnimation(RecentsActivity.this, |
| R.anim.recents_to_launcher_enter, R.anim.recents_to_launcher_exit); |
| } |
| startActivityAsUser(mLaunchIntent, opts.toBundle(), UserHandle.CURRENT); |
| }); |
| } catch (Exception e) { |
| Log.e(TAG, getString(R.string.recents_launch_error_message, "Home"), e); |
| } |
| } |
| } |
| |
| /** |
| * Broadcast receiver to handle messages from the system |
| */ |
| final BroadcastReceiver mSystemBroadcastReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context ctx, Intent intent) { |
| String action = intent.getAction(); |
| if (action.equals(Intent.ACTION_SCREEN_OFF)) { |
| // When the screen turns off, dismiss Recents to Home |
| dismissRecentsToHomeIfVisible(false); |
| } else if (action.equals(Intent.ACTION_USER_SWITCHED)) { |
| // When switching users, dismiss Recents to Home similar to screen off |
| finish(); |
| } |
| } |
| }; |
| |
| private final OnPreDrawListener mRecentsDrawnEventListener = |
| new ViewTreeObserver.OnPreDrawListener() { |
| @Override |
| public boolean onPreDraw() { |
| mRecentsView.getViewTreeObserver().removeOnPreDrawListener(this); |
| EventBus.getDefault().post(new RecentsDrawnEvent()); |
| if (LatencyTracker.isEnabled(getApplicationContext())) { |
| DejankUtils.postAfterTraversal(() -> LatencyTracker.getInstance( |
| getApplicationContext()).onActionEnd( |
| LatencyTracker.ACTION_TOGGLE_RECENTS)); |
| } |
| DejankUtils.postAfterTraversal(() -> { |
| Recents.getTaskLoader().startLoader(RecentsActivity.this); |
| Recents.getTaskLoader().getHighResThumbnailLoader().setVisible(true); |
| }); |
| return true; |
| } |
| }; |
| |
| /** |
| * Dismisses recents if we are already visible and the intent is to toggle the recents view. |
| */ |
| boolean dismissRecentsToFocusedTask(int logCategory) { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp.isRecentsActivityVisible()) { |
| // If we have a focused Task, launch that Task now |
| if (mRecentsView.launchFocusedTask(logCategory)) return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Dismisses recents back to the launch target task. |
| */ |
| boolean dismissRecentsToLaunchTargetTaskOrHome() { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp.isRecentsActivityVisible()) { |
| // If we have a focused Task, launch that Task now |
| if (mRecentsView.launchPreviousTask()) return true; |
| // If none of the other cases apply, then just go Home |
| dismissRecentsToHome(true /* animateTaskViews */); |
| } |
| return false; |
| } |
| |
| /** |
| * Dismisses recents if we are already visible and the intent is to toggle the recents view. |
| */ |
| boolean dismissRecentsToFocusedTaskOrHome() { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp.isRecentsActivityVisible()) { |
| // If we have a focused Task, launch that Task now |
| if (mRecentsView.launchFocusedTask(0 /* logCategory */)) return true; |
| // If none of the other cases apply, then just go Home |
| dismissRecentsToHome(true /* animateTaskViews */); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Dismisses Recents directly to Home without checking whether it is currently visible. |
| */ |
| void dismissRecentsToHome(boolean animateTaskViews) { |
| dismissRecentsToHome(animateTaskViews, null); |
| } |
| |
| /** |
| * Dismisses Recents directly to Home without checking whether it is currently visible. |
| * |
| * @param overrideAnimation If not null, will override the default animation that is based on |
| * how Recents was launched. |
| */ |
| void dismissRecentsToHome(boolean animateTaskViews, ActivityOptions overrideAnimation) { |
| DismissRecentsToHomeAnimationStarted dismissEvent = |
| new DismissRecentsToHomeAnimationStarted(animateTaskViews); |
| dismissEvent.addPostAnimationCallback(new LaunchHomeRunnable(mHomeIntent, |
| overrideAnimation)); |
| ActivityManagerWrapper.getInstance().closeSystemWindows(SYSTEM_DIALOG_REASON_HOME_KEY); |
| EventBus.getDefault().send(dismissEvent); |
| } |
| |
| /** Dismisses Recents directly to Home if we currently aren't transitioning. */ |
| boolean dismissRecentsToHomeIfVisible(boolean animated) { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp.isRecentsActivityVisible()) { |
| // Return to Home |
| dismissRecentsToHome(animated); |
| return true; |
| } |
| return false; |
| } |
| |
| /** Called with the activity is first created. */ |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| mFinishedOnStartup = false; |
| |
| // In the case that the activity starts up before the Recents component has initialized |
| // (usually when debugging/pushing the SysUI apk), just finish this activity. |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp == null) { |
| mFinishedOnStartup = true; |
| finish(); |
| return; |
| } |
| |
| // Register this activity with the event bus |
| EventBus.getDefault().register(this, EVENT_BUS_PRIORITY); |
| |
| // Initialize the package monitor |
| mPackageMonitor.register(this, Looper.getMainLooper(), UserHandle.ALL, |
| true /* externalStorage */); |
| |
| // Select theme based on wallpaper colors |
| mColorExtractor = Dependency.get(SysuiColorExtractor.class); |
| mColorExtractor.addOnColorsChangedListener(this); |
| mUsingDarkText = mColorExtractor.getColors(ColorExtractor.TYPE_DARK, |
| WallpaperManager.FLAG_SYSTEM, true).supportsDarkText(); |
| setTheme(mUsingDarkText ? R.style.RecentsTheme_Wallpaper_Light |
| : R.style.RecentsTheme_Wallpaper); |
| |
| // Set the Recents layout |
| setContentView(R.layout.recents); |
| takeKeyEvents(true); |
| mRecentsView = findViewById(R.id.recents_view); |
| mScrimViews = new SystemBarScrimViews(this); |
| getWindow().getAttributes().privateFlags |= |
| WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_DECOR_VIEW_VISIBILITY; |
| if (Recents.getConfiguration().isLowRamDevice) { |
| getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); |
| } |
| |
| mLastConfig = new Configuration(Utilities.getAppConfiguration(this)); |
| |
| // Set the window background |
| mRecentsView.updateBackgroundScrim(getWindow(), isInMultiWindowMode()); |
| |
| // Create the home intent runnable |
| mHomeIntent = new Intent(Intent.ACTION_MAIN, null); |
| mHomeIntent.addCategory(Intent.CATEGORY_HOME); |
| mHomeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | |
| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); |
| |
| // Register the broadcast receiver to handle messages when the screen is turned off |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(Intent.ACTION_SCREEN_OFF); |
| filter.addAction(Intent.ACTION_USER_SWITCHED); |
| registerReceiver(mSystemBroadcastReceiver, filter); |
| |
| getWindow().addPrivateFlags(LayoutParams.PRIVATE_FLAG_NO_MOVE_ANIMATION); |
| } |
| |
| @Override |
| protected void onStart() { |
| super.onStart(); |
| |
| // Reload the stack view whenever we are made visible again |
| reloadStackView(); |
| |
| // Notify that recents is now visible |
| EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, true)); |
| MetricsLogger.visible(this, MetricsEvent.OVERVIEW_ACTIVITY); |
| |
| // Getting system scrim colors ignoring wallpaper visibility since it should never be grey. |
| ColorExtractor.GradientColors systemColors = mColorExtractor.getColors( |
| ColorExtractor.TYPE_DARK, WallpaperManager.FLAG_SYSTEM, true); |
| // We don't want to interpolate colors because we're defining the initial state. |
| // Gradient should be set/ready when you open "Recents". |
| mRecentsView.setScrimColors(systemColors, false); |
| |
| // Notify of the next draw |
| mRecentsView.getViewTreeObserver().addOnPreDrawListener(mRecentsDrawnEventListener); |
| |
| // If Recents was restarted, then it should complete the enter animation with partially |
| // reset launch state with dock, app and home set to false |
| Object isRelaunching = getLastNonConfigurationInstance(); |
| if (isRelaunching != null && isRelaunching instanceof Boolean && (boolean) isRelaunching) { |
| RecentsActivityLaunchState launchState = Recents.getConfiguration().getLaunchState(); |
| launchState.launchedViaDockGesture = false; |
| launchState.launchedFromApp = false; |
| launchState.launchedFromHome = false; |
| onEnterAnimationComplete(); |
| } |
| mRecentsStartRequested = false; |
| } |
| |
| @Override |
| public void onColorsChanged(ColorExtractor colorExtractor, int which) { |
| if ((which & WallpaperManager.FLAG_SYSTEM) != 0) { |
| // Recents doesn't care about the wallpaper being visible or not, it always |
| // wants to scrim with wallpaper colors |
| ColorExtractor.GradientColors colors = mColorExtractor.getColors( |
| WallpaperManager.FLAG_SYSTEM, |
| ColorExtractor.TYPE_DARK, true /* ignoreVis */); |
| boolean darkText = colors.supportsDarkText(); |
| if (darkText != mUsingDarkText) { |
| mUsingDarkText = darkText; |
| setTheme(mUsingDarkText ? R.style.RecentsTheme_Wallpaper_Light |
| : R.style.RecentsTheme_Wallpaper); |
| mRecentsView.reevaluateStyles(); |
| } |
| mRecentsView.setScrimColors(colors, true /* animated */); |
| } |
| } |
| |
| /** |
| * Reloads the stack views upon launching Recents. |
| */ |
| private void reloadStackView() { |
| // If the Recents component has preloaded a load plan, then use that to prevent |
| // reconstructing the task stack |
| RecentsTaskLoader loader = Recents.getTaskLoader(); |
| RecentsTaskLoadPlan loadPlan = RecentsImpl.consumeInstanceLoadPlan(); |
| if (loadPlan == null) { |
| loadPlan = new RecentsTaskLoadPlan(this); |
| } |
| |
| // Start loading tasks according to the load plan |
| RecentsConfiguration config = Recents.getConfiguration(); |
| RecentsActivityLaunchState launchState = config.getLaunchState(); |
| if (!loadPlan.hasTasks()) { |
| loader.preloadTasks(loadPlan, launchState.launchedToTaskId); |
| } |
| |
| RecentsTaskLoadPlan.Options loadOpts = new RecentsTaskLoadPlan.Options(); |
| loadOpts.runningTaskId = launchState.launchedToTaskId; |
| loadOpts.numVisibleTasks = launchState.launchedNumVisibleTasks; |
| loadOpts.numVisibleTaskThumbnails = launchState.launchedNumVisibleThumbnails; |
| loader.loadTasks(loadPlan, loadOpts); |
| TaskStack stack = loadPlan.getTaskStack(); |
| mRecentsView.onReload(stack, mIsVisible); |
| |
| // Update the nav bar scrim, but defer the animation until the enter-window event |
| boolean animateNavBarScrim = !launchState.launchedViaDockGesture; |
| mScrimViews.updateNavBarScrim(animateNavBarScrim, stack.getTaskCount() > 0, null); |
| |
| // If this is a new instance relaunched by AM, without going through the normal mechanisms, |
| // then we have to manually trigger the enter animation state |
| boolean wasLaunchedByAm = !launchState.launchedFromHome && |
| !launchState.launchedFromApp; |
| if (wasLaunchedByAm) { |
| EventBus.getDefault().send(new EnterRecentsWindowAnimationCompletedEvent()); |
| } |
| |
| // Keep track of whether we launched from the nav bar button or via alt-tab |
| if (launchState.launchedWithAltTab) { |
| MetricsLogger.count(this, "overview_trigger_alttab", 1); |
| } else { |
| MetricsLogger.count(this, "overview_trigger_nav_btn", 1); |
| } |
| |
| // Keep track of whether we launched from an app or from home |
| if (launchState.launchedFromApp) { |
| Task launchTarget = stack.getLaunchTarget(); |
| int launchTaskIndexInStack = launchTarget != null |
| ? stack.indexOfTask(launchTarget) |
| : 0; |
| MetricsLogger.count(this, "overview_source_app", 1); |
| // If from an app, track the stack index of the app in the stack (for affiliated tasks) |
| MetricsLogger.histogram(this, "overview_source_app_index", launchTaskIndexInStack); |
| } else { |
| MetricsLogger.count(this, "overview_source_home", 1); |
| } |
| |
| // Keep track of the total stack task count |
| int taskCount = mRecentsView.getStack().getTaskCount(); |
| MetricsLogger.histogram(this, "overview_task_count", taskCount); |
| |
| // After we have resumed, set the visible state until the next onStop() call |
| mIsVisible = true; |
| } |
| |
| @Override |
| public void onEnterAnimationComplete() { |
| super.onEnterAnimationComplete(); |
| EventBus.getDefault().send(new EnterRecentsWindowAnimationCompletedEvent()); |
| |
| // Workaround for b/64694148: The animation started callback is not made (see |
| // RecentsImpl.getThumbnailTransitionActivityOptions) so reset the transition-waiting state |
| // once the enter animation has completed. |
| EventBus.getDefault().send(new SetWaitingForTransitionStartEvent(false)); |
| } |
| |
| @Override |
| public Object onRetainNonConfigurationInstance() { |
| return true; |
| } |
| |
| @Override |
| protected void onPause() { |
| super.onPause(); |
| |
| mIgnoreAltTabRelease = false; |
| } |
| |
| @Override |
| public void onConfigurationChanged(Configuration newConfig) { |
| super.onConfigurationChanged(newConfig); |
| |
| // Notify of the config change |
| Configuration newDeviceConfiguration = Utilities.getAppConfiguration(this); |
| int numStackTasks = mRecentsView.getStack().getTaskCount(); |
| EventBus.getDefault().send(new ConfigurationChangedEvent(false /* fromMultiWindow */, |
| mLastConfig.orientation != newDeviceConfiguration.orientation, |
| mLastConfig.densityDpi != newDeviceConfiguration.densityDpi, numStackTasks > 0)); |
| |
| mLastConfig.updateFrom(newDeviceConfiguration); |
| } |
| |
| @Override |
| public void onMultiWindowModeChanged(boolean isInMultiWindowMode) { |
| super.onMultiWindowModeChanged(isInMultiWindowMode); |
| |
| // Set the window background |
| mRecentsView.updateBackgroundScrim(getWindow(), isInMultiWindowMode); |
| |
| // Reload the task stack view if we are still visible to pick up the change in tasks that |
| // result from entering/exiting multi-window |
| if (mIsVisible) { |
| reloadTaskStack(isInMultiWindowMode, true /* sendConfigChangedEvent */); |
| } |
| } |
| |
| @Override |
| protected void onStop() { |
| super.onStop(); |
| |
| // Notify that recents is now hidden |
| mIsVisible = false; |
| EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, false)); |
| MetricsLogger.hidden(this, MetricsEvent.OVERVIEW_ACTIVITY); |
| Recents.getTaskLoader().getHighResThumbnailLoader().setVisible(false); |
| |
| // When recents starts again before onStop, do not reset launch flags so entrance animation |
| // can run |
| if (!isChangingConfigurations() && !mRecentsStartRequested) { |
| // Workaround for b/22542869, if the RecentsActivity is started again, but without going |
| // through SystemUI, we need to reset the config launch flags to ensure that we do not |
| // wait on the system to send a signal that was never queued. |
| RecentsConfiguration config = Recents.getConfiguration(); |
| RecentsActivityLaunchState launchState = config.getLaunchState(); |
| launchState.reset(); |
| } |
| |
| // Force a gc to attempt to clean up bitmap references more quickly (b/38258699) |
| Recents.getSystemServices().gc(); |
| } |
| |
| @Override |
| protected void onDestroy() { |
| super.onDestroy(); |
| |
| // In the case that the activity finished on startup, just skip the unregistration below |
| if (mFinishedOnStartup) { |
| return; |
| } |
| |
| // Unregister the system broadcast receivers |
| unregisterReceiver(mSystemBroadcastReceiver); |
| |
| // Unregister any broadcast receivers for the task loader |
| mPackageMonitor.unregister(); |
| |
| EventBus.getDefault().unregister(this); |
| } |
| |
| @Override |
| public void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| EventBus.getDefault().register(mScrimViews, EVENT_BUS_PRIORITY); |
| } |
| |
| @Override |
| public void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| EventBus.getDefault().unregister(mScrimViews); |
| } |
| |
| @Override |
| public void onTrimMemory(int level) { |
| RecentsTaskLoader loader = Recents.getTaskLoader(); |
| if (loader != null) { |
| loader.onTrimMemory(level); |
| } |
| } |
| |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| switch (keyCode) { |
| case KeyEvent.KEYCODE_TAB: { |
| int altTabKeyDelay = getResources().getInteger(R.integer.recents_alt_tab_key_delay); |
| boolean hasRepKeyTimeElapsed = (SystemClock.elapsedRealtime() - |
| mLastTabKeyEventTime) > altTabKeyDelay; |
| if (event.getRepeatCount() <= 0 || hasRepKeyTimeElapsed) { |
| // Focus the next task in the stack |
| final boolean backward = event.isShiftPressed(); |
| if (backward) { |
| EventBus.getDefault().send(new FocusPreviousTaskViewEvent()); |
| } else { |
| EventBus.getDefault().send(new FocusNextTaskViewEvent()); |
| } |
| mLastTabKeyEventTime = SystemClock.elapsedRealtime(); |
| |
| // In the case of another ALT event, don't ignore the next release |
| if (event.isAltPressed()) { |
| mIgnoreAltTabRelease = false; |
| } |
| } |
| return true; |
| } |
| case KeyEvent.KEYCODE_DPAD_UP: |
| case KeyEvent.KEYCODE_DPAD_DOWN: |
| case KeyEvent.KEYCODE_DPAD_LEFT: |
| case KeyEvent.KEYCODE_DPAD_RIGHT: { |
| final Direction direction = NavigateTaskViewEvent.getDirectionFromKeyCode(keyCode); |
| EventBus.getDefault().send(new NavigateTaskViewEvent(direction)); |
| return true; |
| } |
| case KeyEvent.KEYCODE_DEL: |
| case KeyEvent.KEYCODE_FORWARD_DEL: { |
| if (event.getRepeatCount() <= 0) { |
| EventBus.getDefault().send(new DismissFocusedTaskViewEvent()); |
| |
| // Keep track of deletions by keyboard |
| MetricsLogger.histogram(this, "overview_task_dismissed_source", |
| Constants.Metrics.DismissSourceKeyboard); |
| return true; |
| } |
| } |
| default: |
| break; |
| } |
| return super.onKeyDown(keyCode, event); |
| } |
| |
| @Override |
| public void onUserInteraction() { |
| EventBus.getDefault().send(mUserInteractionEvent); |
| } |
| |
| @Override |
| public void onBackPressed() { |
| // Back behaves like the recents button so just trigger a toggle event |
| EventBus.getDefault().send(new ToggleRecentsEvent()); |
| } |
| |
| /**** EventBus events ****/ |
| |
| public final void onBusEvent(ToggleRecentsEvent event) { |
| RecentsActivityLaunchState launchState = Recents.getConfiguration().getLaunchState(); |
| if (launchState.launchedFromHome) { |
| dismissRecentsToHome(true /* animateTaskViews */); |
| } else { |
| dismissRecentsToLaunchTargetTaskOrHome(); |
| } |
| } |
| |
| public final void onBusEvent(RecentsActivityStartingEvent event) { |
| mRecentsStartRequested = true; |
| } |
| |
| public final void onBusEvent(HideRecentsEvent event) { |
| if (event.triggeredFromAltTab) { |
| // If we are hiding from releasing Alt-Tab, dismiss Recents to the focused app |
| if (!mIgnoreAltTabRelease) { |
| dismissRecentsToFocusedTaskOrHome(); |
| } |
| } else if (event.triggeredFromHomeKey) { |
| dismissRecentsToHome(true /* animateTaskViews */); |
| |
| // Cancel any pending dozes |
| EventBus.getDefault().send(mUserInteractionEvent); |
| } else { |
| // Do nothing |
| } |
| } |
| |
| public final void onBusEvent(EnterRecentsWindowLastAnimationFrameEvent event) { |
| mRecentsView.getViewTreeObserver().addOnPreDrawListener(this); |
| mRecentsView.invalidate(); |
| } |
| |
| public final void onBusEvent(ExitRecentsWindowFirstAnimationFrameEvent event) { |
| mRecentsView.getViewTreeObserver().addOnPreDrawListener(this); |
| mRecentsView.invalidate(); |
| } |
| |
| public final void onBusEvent(DockedFirstAnimationFrameEvent event) { |
| mRecentsView.getViewTreeObserver().addOnPreDrawListener(this); |
| mRecentsView.invalidate(); |
| } |
| |
| public final void onBusEvent(CancelEnterRecentsWindowAnimationEvent event) { |
| RecentsActivityLaunchState launchState = Recents.getConfiguration().getLaunchState(); |
| int launchToTaskId = launchState.launchedToTaskId; |
| if (launchToTaskId != -1 && |
| (event.launchTask == null || launchToTaskId != event.launchTask.key.id)) { |
| ActivityManagerWrapper am = ActivityManagerWrapper.getInstance(); |
| am.cancelWindowTransition(launchState.launchedToTaskId); |
| } |
| } |
| |
| public final void onBusEvent(ShowApplicationInfoEvent event) { |
| // Create a new task stack with the application info details activity |
| Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, |
| Uri.fromParts("package", event.task.key.getComponent().getPackageName(), null)); |
| intent.setComponent(intent.resolveActivity(getPackageManager())); |
| TaskStackBuilder.create(this) |
| .addNextIntentWithParentStack(intent).startActivities(null, |
| new UserHandle(event.task.key.userId)); |
| |
| // Keep track of app-info invocations |
| MetricsLogger.count(this, "overview_app_info", 1); |
| } |
| |
| public final void onBusEvent(ShowIncompatibleAppOverlayEvent event) { |
| if (mIncompatibleAppOverlay == null) { |
| mIncompatibleAppOverlay = Utilities.findViewStubById(this, |
| R.id.incompatible_app_overlay_stub).inflate(); |
| mIncompatibleAppOverlay.setWillNotDraw(false); |
| mIncompatibleAppOverlay.setVisibility(View.VISIBLE); |
| } |
| mIncompatibleAppOverlay.animate() |
| .alpha(1f) |
| .setDuration(INCOMPATIBLE_APP_ALPHA_DURATION) |
| .setInterpolator(Interpolators.ALPHA_IN) |
| .start(); |
| } |
| |
| public final void onBusEvent(HideIncompatibleAppOverlayEvent event) { |
| if (mIncompatibleAppOverlay != null) { |
| mIncompatibleAppOverlay.animate() |
| .alpha(0f) |
| .setDuration(INCOMPATIBLE_APP_ALPHA_DURATION) |
| .setInterpolator(Interpolators.ALPHA_OUT) |
| .start(); |
| } |
| } |
| |
| public final void onBusEvent(DeleteTaskDataEvent event) { |
| // Remove any stored data from the loader |
| RecentsTaskLoader loader = Recents.getTaskLoader(); |
| loader.deleteTaskData(event.task, false); |
| |
| // Remove the task from activity manager |
| ActivityManagerWrapper.getInstance().removeTask(event.task.key.id); |
| } |
| |
| public final void onBusEvent(TaskViewDismissedEvent event) { |
| mRecentsView.updateScrimOpacity(); |
| } |
| |
| public final void onBusEvent(AllTaskViewsDismissedEvent event) { |
| SystemServicesProxy ssp = Recents.getSystemServices(); |
| if (ssp.hasDockedTask()) { |
| mRecentsView.showEmptyView(event.msgResId); |
| } else { |
| // Just go straight home (no animation necessary because there are no more task views) |
| dismissRecentsToHome(false /* animateTaskViews */); |
| } |
| |
| // Keep track of all-deletions |
| MetricsLogger.count(this, "overview_task_all_dismissed", 1); |
| } |
| |
| public final void onBusEvent(LaunchTaskSucceededEvent event) { |
| MetricsLogger.histogram(this, "overview_task_launch_index", event.taskIndexFromStackFront); |
| } |
| |
| public final void onBusEvent(LaunchTaskFailedEvent event) { |
| // Return to Home |
| dismissRecentsToHome(true /* animateTaskViews */); |
| |
| MetricsLogger.count(this, "overview_task_launch_failed", 1); |
| } |
| |
| public final void onBusEvent(ScreenPinningRequestEvent event) { |
| MetricsLogger.count(this, "overview_screen_pinned", 1); |
| } |
| |
| public final void onBusEvent(StackViewScrolledEvent event) { |
| // Once the user has scrolled while holding alt-tab, then we should ignore the release of |
| // the key |
| mIgnoreAltTabRelease = true; |
| } |
| |
| public final void onBusEvent(final DockedTopTaskEvent event) { |
| mRecentsView.getViewTreeObserver().addOnPreDrawListener(mRecentsDrawnEventListener); |
| mRecentsView.invalidate(); |
| } |
| |
| public final void onBusEvent(final ActivityUnpinnedEvent event) { |
| if (mIsVisible) { |
| // Skip the configuration change event as the PiP activity does not actually affect the |
| // config of recents |
| reloadTaskStack(isInMultiWindowMode(), false /* sendConfigChangedEvent */); |
| } |
| } |
| |
| private void reloadTaskStack(boolean isInMultiWindowMode, boolean sendConfigChangedEvent) { |
| // Reload the task stack completely |
| RecentsConfiguration config = Recents.getConfiguration(); |
| RecentsActivityLaunchState launchState = config.getLaunchState(); |
| RecentsTaskLoader loader = Recents.getTaskLoader(); |
| RecentsTaskLoadPlan loadPlan = new RecentsTaskLoadPlan(this); |
| loader.preloadTasks(loadPlan, -1 /* runningTaskId */); |
| |
| RecentsTaskLoadPlan.Options loadOpts = new RecentsTaskLoadPlan.Options(); |
| loadOpts.numVisibleTasks = launchState.launchedNumVisibleTasks; |
| loadOpts.numVisibleTaskThumbnails = launchState.launchedNumVisibleThumbnails; |
| loader.loadTasks(loadPlan, loadOpts); |
| |
| TaskStack stack = loadPlan.getTaskStack(); |
| int numStackTasks = stack.getTaskCount(); |
| boolean showDeferredAnimation = numStackTasks > 0; |
| |
| if (sendConfigChangedEvent) { |
| EventBus.getDefault().send(new ConfigurationChangedEvent(true /* fromMultiWindow */, |
| false /* fromDeviceOrientationChange */, false /* fromDisplayDensityChange */, |
| numStackTasks > 0)); |
| } |
| EventBus.getDefault().send(new MultiWindowStateChangedEvent(isInMultiWindowMode, |
| showDeferredAnimation, stack)); |
| } |
| |
| @Override |
| public boolean onPreDraw() { |
| mRecentsView.getViewTreeObserver().removeOnPreDrawListener(this); |
| // We post to make sure that this information is delivered after this traversals is |
| // finished. |
| mRecentsView.post(new Runnable() { |
| @Override |
| public void run() { |
| Recents.getSystemServices().endProlongedAnimations(); |
| } |
| }); |
| return true; |
| } |
| |
| public void onPackageChanged(String packageName, int userId) { |
| Recents.getTaskLoader().onPackageChanged(packageName); |
| EventBus.getDefault().send(new PackagesChangedEvent(packageName, userId)); |
| } |
| |
| @Override |
| public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) { |
| super.dump(prefix, fd, writer, args); |
| EventBus.getDefault().dump(prefix, writer); |
| Recents.getTaskLoader().dump(prefix, writer); |
| |
| String id = Integer.toHexString(System.identityHashCode(this)); |
| |
| writer.print(prefix); writer.print(TAG); |
| writer.print(" visible="); writer.print(mIsVisible ? "Y" : "N"); |
| writer.print(" currentTime="); writer.print(System.currentTimeMillis()); |
| writer.print(" [0x"); writer.print(id); writer.print("]"); |
| writer.println(); |
| |
| if (mRecentsView != null) { |
| mRecentsView.dump(prefix, writer); |
| } |
| } |
| } |
