/* * Copyright (C) 2013 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.android.server.am; import static android.Manifest.permission.ACTIVITY_EMBEDDING; import static android.Manifest.permission.INTERNAL_SYSTEM_WINDOW; import static android.Manifest.permission.START_ANY_ACTIVITY; import static android.Manifest.permission.START_TASKS_FROM_RECENTS; import static android.app.ActivityManager.LOCK_TASK_MODE_LOCKED; import static android.app.ActivityManager.LOCK_TASK_MODE_NONE; import static android.app.ActivityManager.LOCK_TASK_MODE_PINNED; import static android.app.ActivityManager.START_TASK_TO_FRONT; import static android.app.ActivityManager.StackId.DOCKED_STACK_ID; import static android.app.ActivityManager.StackId.FIRST_DYNAMIC_STACK_ID; import static android.app.ActivityManager.StackId.FIRST_STATIC_STACK_ID; import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID; import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID; import static android.app.ActivityManager.StackId.HOME_STACK_ID; import static android.app.ActivityManager.StackId.INVALID_STACK_ID; import static android.app.ActivityManager.StackId.LAST_STATIC_STACK_ID; import static android.app.ActivityManager.StackId.PINNED_STACK_ID; import static android.app.ActivityManager.StackId.RECENTS_STACK_ID; import static android.app.ITaskStackListener.FORCED_RESIZEABLE_REASON_SECONDARY_DISPLAY; import static android.app.ITaskStackListener.FORCED_RESIZEABLE_REASON_SPLIT_SCREEN; import static android.content.pm.PackageManager.PERMISSION_DENIED; import static android.content.pm.PackageManager.PERMISSION_GRANTED; import static android.os.Process.SYSTEM_UID; import static android.os.PowerManager.PARTIAL_WAKE_LOCK; import static android.os.Trace.TRACE_TAG_ACTIVITY_MANAGER; import static android.view.Display.DEFAULT_DISPLAY; import static android.view.Display.FLAG_PRIVATE; import static android.view.Display.INVALID_DISPLAY; import static android.view.Display.REMOVE_MODE_DESTROY_CONTENT; import static android.view.Display.TYPE_VIRTUAL; import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.ACTION_PICTURE_IN_PICTURE_EXPANDED_TO_FULLSCREEN; import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALL; import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_FOCUS; import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_IDLE; import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_LOCKTASK; import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PAUSE; import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_RECENTS; import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_RELEASE; import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_STACK; import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_STATES; import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_SWITCH; import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_TASKS; import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_FOCUS; import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_IDLE; import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_LOCKTASK; import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_PAUSE; import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_RECENTS; import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_RELEASE; import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_STACK; import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_STATES; import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_SWITCH; import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_TASKS; import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM; import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME; import static com.android.server.am.ActivityManagerService.ANIMATE; import static com.android.server.am.ActivityManagerService.FIRST_SUPERVISOR_STACK_MSG; import static com.android.server.am.ActivityRecord.APPLICATION_ACTIVITY_TYPE; import static com.android.server.am.ActivityRecord.HOME_ACTIVITY_TYPE; import static com.android.server.am.ActivityStack.ActivityState.DESTROYED; import static com.android.server.am.ActivityStack.ActivityState.DESTROYING; import static com.android.server.am.ActivityStack.ActivityState.INITIALIZING; import static com.android.server.am.ActivityStack.ActivityState.PAUSED; import static com.android.server.am.ActivityStack.ActivityState.PAUSING; import static com.android.server.am.ActivityStack.ActivityState.RESUMED; import static com.android.server.am.ActivityStack.ActivityState.STOPPED; import static com.android.server.am.ActivityStack.ActivityState.STOPPING; import static com.android.server.am.ActivityStack.REMOVE_TASK_MODE_MOVING; import static com.android.server.am.ActivityStack.STACK_INVISIBLE; import static com.android.server.am.ActivityStack.STACK_VISIBLE; import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_DONT_LOCK; import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_LAUNCHABLE; import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_LAUNCHABLE_PRIV; import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_PINNABLE; import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_WHITELISTED; import static com.android.server.am.TaskRecord.REPARENT_KEEP_STACK_AT_FRONT; import static com.android.server.am.TaskRecord.REPARENT_LEAVE_STACK_IN_PLACE; import static com.android.server.am.TaskRecord.REPARENT_MOVE_STACK_TO_FRONT; import static com.android.server.wm.AppTransition.TRANSIT_DOCK_TASK_FROM_RECENTS; import static java.lang.Integer.MAX_VALUE; import android.Manifest; import android.annotation.IntDef; import android.annotation.NonNull; import android.annotation.UserIdInt; import android.app.Activity; import android.app.ActivityManager; import android.app.ActivityManager.RunningTaskInfo; import android.app.ActivityManager.StackId; import android.app.ActivityManager.StackInfo; import android.app.ActivityManagerInternal.SleepToken; import android.app.ActivityOptions; import android.app.AppOpsManager; import android.app.ProfilerInfo; import android.app.ResultInfo; import android.app.StatusBarManager; import android.app.WaitResult; import android.app.admin.IDevicePolicyManager; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.pm.ActivityInfo; import android.content.pm.ApplicationInfo; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.ResolveInfo; import android.content.pm.UserInfo; import android.content.res.Configuration; import android.graphics.Rect; import android.hardware.display.DisplayManager; import android.hardware.display.DisplayManager.DisplayListener; import android.hardware.display.DisplayManagerInternal; import android.hardware.input.InputManagerInternal; import android.os.Binder; import android.os.Bundle; import android.os.Debug; import android.os.Handler; import android.os.IBinder; import android.os.Looper; import android.os.Message; import android.os.PowerManager; import android.os.Process; import android.os.RemoteException; import android.os.ServiceManager; import android.os.SystemClock; import android.os.Trace; import android.os.UserHandle; import android.os.UserManager; import android.os.WorkSource; import android.provider.MediaStore; import android.provider.Settings; import android.provider.Settings.SettingNotFoundException; import android.service.voice.IVoiceInteractionSession; import android.util.ArrayMap; import android.util.ArraySet; import android.util.EventLog; import android.util.IntArray; import android.util.MergedConfiguration; import android.util.Slog; import android.util.SparseArray; import android.util.SparseIntArray; import android.util.TimeUtils; import android.view.Display; import com.android.internal.annotations.VisibleForTesting; import com.android.internal.content.ReferrerIntent; import com.android.internal.logging.MetricsLogger; import com.android.internal.os.TransferPipe; import com.android.internal.statusbar.IStatusBarService; import com.android.internal.util.ArrayUtils; import com.android.internal.widget.LockPatternUtils; import com.android.server.LocalServices; import com.android.server.am.ActivityStack.ActivityState; import com.android.server.wm.PinnedStackWindowController; import com.android.server.wm.WindowManagerService; import java.io.FileDescriptor; import java.io.IOException; import java.io.PrintWriter; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.util.ArrayList; import java.util.Arrays; import java.util.Iterator; import java.util.List; import java.util.Set; public class ActivityStackSupervisor extends ConfigurationContainer implements DisplayListener { private static final String TAG = TAG_WITH_CLASS_NAME ? "ActivityStackSupervisor" : TAG_AM; private static final String TAG_FOCUS = TAG + POSTFIX_FOCUS; private static final String TAG_IDLE = TAG + POSTFIX_IDLE; private static final String TAG_LOCKTASK = TAG + POSTFIX_LOCKTASK; private static final String TAG_PAUSE = TAG + POSTFIX_PAUSE; private static final String TAG_RECENTS = TAG + POSTFIX_RECENTS; private static final String TAG_RELEASE = TAG + POSTFIX_RELEASE; private static final String TAG_STACK = TAG + POSTFIX_STACK; private static final String TAG_STATES = TAG + POSTFIX_STATES; private static final String TAG_SWITCH = TAG + POSTFIX_SWITCH; static final String TAG_TASKS = TAG + POSTFIX_TASKS; /** How long we wait until giving up on the last activity telling us it is idle. */ static final int IDLE_TIMEOUT = 10 * 1000; /** How long we can hold the sleep wake lock before giving up. */ static final int SLEEP_TIMEOUT = 5 * 1000; // How long we can hold the launch wake lock before giving up. static final int LAUNCH_TIMEOUT = 10 * 1000; static final int IDLE_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG; static final int IDLE_NOW_MSG = FIRST_SUPERVISOR_STACK_MSG + 1; static final int RESUME_TOP_ACTIVITY_MSG = FIRST_SUPERVISOR_STACK_MSG + 2; static final int SLEEP_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 3; static final int LAUNCH_TIMEOUT_MSG = FIRST_SUPERVISOR_STACK_MSG + 4; static final int HANDLE_DISPLAY_ADDED = FIRST_SUPERVISOR_STACK_MSG + 5; static final int HANDLE_DISPLAY_CHANGED = FIRST_SUPERVISOR_STACK_MSG + 6; static final int HANDLE_DISPLAY_REMOVED = FIRST_SUPERVISOR_STACK_MSG + 7; static final int LOCK_TASK_START_MSG = FIRST_SUPERVISOR_STACK_MSG + 9; static final int LOCK_TASK_END_MSG = FIRST_SUPERVISOR_STACK_MSG + 10; static final int LAUNCH_TASK_BEHIND_COMPLETE = FIRST_SUPERVISOR_STACK_MSG + 12; static final int SHOW_LOCK_TASK_ESCAPE_MESSAGE_MSG = FIRST_SUPERVISOR_STACK_MSG + 13; static final int REPORT_MULTI_WINDOW_MODE_CHANGED_MSG = FIRST_SUPERVISOR_STACK_MSG + 14; static final int REPORT_PIP_MODE_CHANGED_MSG = FIRST_SUPERVISOR_STACK_MSG + 15; private static final String VIRTUAL_DISPLAY_BASE_NAME = "ActivityViewVirtualDisplay"; private static final String LOCK_TASK_TAG = "Lock-to-App"; // Used to indicate if an object (e.g. stack) that we are trying to get // should be created if it doesn't exist already. static final boolean CREATE_IF_NEEDED = true; // Used to indicate that windows of activities should be preserved during the resize. static final boolean PRESERVE_WINDOWS = true; // Used to indicate if an object (e.g. task) should be moved/created // at the top of its container (e.g. stack). static final boolean ON_TOP = true; // Used to indicate that an objects (e.g. task) removal from its container // (e.g. stack) is due to it moving to another container. static final boolean MOVING = true; // Force the focus to change to the stack we are moving a task to.. static final boolean FORCE_FOCUS = true; // Don't execute any calls to resume. static final boolean DEFER_RESUME = true; // Used to indicate that a task is removed it should also be removed from recents. static final boolean REMOVE_FROM_RECENTS = true; // Used to indicate that pausing an activity should occur immediately without waiting for // the activity callback indicating that it has completed pausing static final boolean PAUSE_IMMEDIATELY = true; /** * The modes which affect which tasks are returned when calling * {@link ActivityStackSupervisor#anyTaskForIdLocked(int)}. */ @Retention(RetentionPolicy.SOURCE) @IntDef({ MATCH_TASK_IN_STACKS_ONLY, MATCH_TASK_IN_STACKS_OR_RECENT_TASKS, MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE }) public @interface AnyTaskForIdMatchTaskMode {} // Match only tasks in the current stacks static final int MATCH_TASK_IN_STACKS_ONLY = 0; // Match either tasks in the current stacks, or in the recent tasks if not found in the stacks static final int MATCH_TASK_IN_STACKS_OR_RECENT_TASKS = 1; // Match either tasks in the current stacks, or in the recent tasks, restoring it to the // provided stack id static final int MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE = 2; // Activity actions an app cannot start if it uses a permission which is not granted. private static final ArrayMap ACTION_TO_RUNTIME_PERMISSION = new ArrayMap<>(); static { ACTION_TO_RUNTIME_PERMISSION.put(MediaStore.ACTION_IMAGE_CAPTURE, Manifest.permission.CAMERA); ACTION_TO_RUNTIME_PERMISSION.put(MediaStore.ACTION_VIDEO_CAPTURE, Manifest.permission.CAMERA); ACTION_TO_RUNTIME_PERMISSION.put(Intent.ACTION_CALL, Manifest.permission.CALL_PHONE); } /** Action restriction: launching the activity is not restricted. */ private static final int ACTIVITY_RESTRICTION_NONE = 0; /** Action restriction: launching the activity is restricted by a permission. */ private static final int ACTIVITY_RESTRICTION_PERMISSION = 1; /** Action restriction: launching the activity is restricted by an app op. */ private static final int ACTIVITY_RESTRICTION_APPOP = 2; /** Status Bar Service **/ private IBinder mToken = new Binder(); private IStatusBarService mStatusBarService; private IDevicePolicyManager mDevicePolicyManager; // For debugging to make sure the caller when acquiring/releasing our // wake lock is the system process. static final boolean VALIDATE_WAKE_LOCK_CALLER = false; /** The number of distinct task ids that can be assigned to the tasks of a single user */ private static final int MAX_TASK_IDS_PER_USER = UserHandle.PER_USER_RANGE; final ActivityManagerService mService; private RecentTasks mRecentTasks; final ActivityStackSupervisorHandler mHandler; /** Short cut */ WindowManagerService mWindowManager; DisplayManager mDisplayManager; /** Counter for next free stack ID to use for dynamic activity stacks. */ private int mNextFreeStackId = FIRST_DYNAMIC_STACK_ID; /** * Maps the task identifier that activities are currently being started in to the userId of the * task. Each time a new task is created, the entry for the userId of the task is incremented */ private final SparseIntArray mCurTaskIdForUser = new SparseIntArray(20); /** The current user */ int mCurrentUser; /** The stack containing the launcher app. Assumed to always be attached to * Display.DEFAULT_DISPLAY. */ ActivityStack mHomeStack; /** The stack currently receiving input or launching the next activity. */ ActivityStack mFocusedStack; /** If this is the same as mFocusedStack then the activity on the top of the focused stack has * been resumed. If stacks are changing position this will hold the old stack until the new * stack becomes resumed after which it will be set to mFocusedStack. */ private ActivityStack mLastFocusedStack; /** List of activities that are waiting for a new activity to become visible before completing * whatever operation they are supposed to do. */ // TODO: Remove mActivitiesWaitingForVisibleActivity list and just remove activity from // mStoppingActivities when something else comes up. final ArrayList mActivitiesWaitingForVisibleActivity = new ArrayList<>(); /** List of processes waiting to find out when a specific activity becomes visible. */ private final ArrayList mWaitingForActivityVisible = new ArrayList<>(); /** List of processes waiting to find out about the next launched activity. */ final ArrayList mWaitingActivityLaunched = new ArrayList<>(); /** List of activities that are ready to be stopped, but waiting for the next activity to * settle down before doing so. */ final ArrayList mStoppingActivities = new ArrayList<>(); /** List of activities that are ready to be finished, but waiting for the previous activity to * settle down before doing so. It contains ActivityRecord objects. */ final ArrayList mFinishingActivities = new ArrayList<>(); /** List of activities that are in the process of going to sleep. */ final ArrayList mGoingToSleepActivities = new ArrayList<>(); /** List of activities whose multi-window mode changed that we need to report to the * application */ final ArrayList mMultiWindowModeChangedActivities = new ArrayList<>(); /** List of activities whose picture-in-picture mode changed that we need to report to the * application */ final ArrayList mPipModeChangedActivities = new ArrayList<>(); /** The target stack bounds for the picture-in-picture mode changed that we need to report to * the application */ Rect mPipModeChangedTargetStackBounds; /** Used on user changes */ final ArrayList mStartingUsers = new ArrayList<>(); /** Set to indicate whether to issue an onUserLeaving callback when a newly launched activity * is being brought in front of us. */ boolean mUserLeaving = false; /** * We don't want to allow the device to go to sleep while in the process * of launching an activity. This is primarily to allow alarm intent * receivers to launch an activity and get that to run before the device * goes back to sleep. */ PowerManager.WakeLock mLaunchingActivity; /** * Set when the system is going to sleep, until we have * successfully paused the current activity and released our wake lock. * At that point the system is allowed to actually sleep. */ PowerManager.WakeLock mGoingToSleep; /** * A list of tokens that cause the top activity to be put to sleep. * They are used by components that may hide and block interaction with underlying * activities. */ final ArrayList mSleepTokens = new ArrayList(); /** Stack id of the front stack when user switched, indexed by userId. */ SparseIntArray mUserStackInFront = new SparseIntArray(2); // TODO: Add listener for removal of references. /** Mapping from (ActivityStack/TaskStack).mStackId to their current state */ SparseArray mStacks = new SparseArray<>(); // TODO: There should be an ActivityDisplayController coordinating am/wm interaction. /** Mapping from displayId to display current state */ private final SparseArray mActivityDisplays = new SparseArray<>(); private final SparseArray mDisplayAccessUIDs = new SparseArray<>(); private DisplayManagerInternal mDisplayManagerInternal; private InputManagerInternal mInputManagerInternal; /** The chain of tasks in lockTask mode. The current frontmost task is at the top, and tasks * may be finished until there is only one entry left. If this is empty the system is not * in lockTask mode. */ ArrayList mLockTaskModeTasks = new ArrayList<>(); /** Store the current lock task mode. Possible values: * {@link ActivityManager#LOCK_TASK_MODE_NONE}, {@link ActivityManager#LOCK_TASK_MODE_LOCKED}, * {@link ActivityManager#LOCK_TASK_MODE_PINNED} */ private int mLockTaskModeState; /** * Notifies the user when entering/exiting lock-task. */ private LockTaskNotify mLockTaskNotify; /** Used to keep resumeTopActivityUncheckedLocked() from being entered recursively */ boolean inResumeTopActivity; /** * Temporary rect used during docked stack resize calculation so we don't need to create a new * object each time. */ private final Rect tempRect = new Rect(); // The default minimal size that will be used if the activity doesn't specify its minimal size. // It will be calculated when the default display gets added. int mDefaultMinSizeOfResizeableTask = -1; // Whether tasks have moved and we need to rank the tasks before next OOM scoring private boolean mTaskLayersChanged = true; final ActivityMetricsLogger mActivityMetricsLogger; private final ArrayList mTmpActivityList = new ArrayList<>(); @Override protected int getChildCount() { return mActivityDisplays.size(); } @Override protected ActivityDisplay getChildAt(int index) { return mActivityDisplays.valueAt(index); } @Override protected ConfigurationContainer getParent() { return null; } Configuration getDisplayOverrideConfiguration(int displayId) { final ActivityDisplay activityDisplay = getActivityDisplayOrCreateLocked(displayId); if (activityDisplay == null) { throw new IllegalArgumentException("No display found with id: " + displayId); } return activityDisplay.getOverrideConfiguration(); } void setDisplayOverrideConfiguration(Configuration overrideConfiguration, int displayId) { final ActivityDisplay activityDisplay = getActivityDisplayOrCreateLocked(displayId); if (activityDisplay == null) { throw new IllegalArgumentException("No display found with id: " + displayId); } activityDisplay.onOverrideConfigurationChanged(overrideConfiguration); } /** Check if placing task or activity on specified display is allowed. */ boolean canPlaceEntityOnDisplay(int displayId, boolean resizeable, int callingPid, int callingUid, ActivityInfo activityInfo) { if (displayId == DEFAULT_DISPLAY) { // No restrictions for the default display. return true; } if (!mService.mSupportsMultiDisplay) { // Can't launch on secondary displays if feature is not supported. return false; } if (!resizeable && !displayConfigMatchesGlobal(displayId)) { // Can't apply wrong configuration to non-resizeable activities. return false; } if (!isCallerAllowedToLaunchOnDisplay(callingPid, callingUid, displayId, activityInfo)) { // Can't place activities to a display that has restricted launch rules. // In this case the request should be made by explicitly adding target display id and // by caller with corresponding permissions. See #isCallerAllowedToLaunchOnDisplay(). return false; } return true; } /** * Check if configuration of specified display matches current global config. * Used to check if we can put a non-resizeable activity on a secondary display and it will get * the same config as on the default display. * @param displayId Id of the display to check. * @return {@code true} if configuration matches. */ private boolean displayConfigMatchesGlobal(int displayId) { if (displayId == DEFAULT_DISPLAY) { return true; } if (displayId == INVALID_DISPLAY) { return false; } final ActivityDisplay targetDisplay = getActivityDisplayOrCreateLocked(displayId); if (targetDisplay == null) { throw new IllegalArgumentException("No display found with id: " + displayId); } return getConfiguration().equals(targetDisplay.getConfiguration()); } static class FindTaskResult { ActivityRecord r; boolean matchedByRootAffinity; } private final FindTaskResult mTmpFindTaskResult = new FindTaskResult(); /** * Temp storage for display ids sorted in focus order. * Maps position to id. Using {@link SparseIntArray} instead of {@link ArrayList} because * it's more efficient, as the number of displays is usually small. */ private SparseIntArray mTmpOrderedDisplayIds = new SparseIntArray(); /** * Used to keep track whether app visibilities got changed since the last pause. Useful to * determine whether to invoke the task stack change listener after pausing. */ boolean mAppVisibilitiesChangedSinceLastPause; /** * Set of tasks that are in resizing mode during an app transition to fill the "void". */ private final ArraySet mResizingTasksDuringAnimation = new ArraySet<>(); /** * If set to {@code false} all calls to resize the docked stack {@link #resizeDockedStackLocked} * will be ignored. Useful for the case where the caller is handling resizing of other stack and * moving tasks around and doesn't want dock stack to be resized due to an automatic trigger * like the docked stack going empty. */ private boolean mAllowDockedStackResize = true; /** * Is dock currently minimized. */ boolean mIsDockMinimized; final KeyguardController mKeyguardController; private PowerManager mPowerManager; private int mDeferResumeCount; /** * Description of a request to start a new activity, which has been held * due to app switches being disabled. */ static class PendingActivityLaunch { final ActivityRecord r; final ActivityRecord sourceRecord; final int startFlags; final ActivityStack stack; final ProcessRecord callerApp; PendingActivityLaunch(ActivityRecord _r, ActivityRecord _sourceRecord, int _startFlags, ActivityStack _stack, ProcessRecord _callerApp) { r = _r; sourceRecord = _sourceRecord; startFlags = _startFlags; stack = _stack; callerApp = _callerApp; } void sendErrorResult(String message) { try { if (callerApp.thread != null) { callerApp.thread.scheduleCrash(message); } } catch (RemoteException e) { Slog.e(TAG, "Exception scheduling crash of failed " + "activity launcher sourceRecord=" + sourceRecord, e); } } } public ActivityStackSupervisor(ActivityManagerService service, Looper looper) { mService = service; mHandler = new ActivityStackSupervisorHandler(looper); mActivityMetricsLogger = new ActivityMetricsLogger(this, mService.mContext); mKeyguardController = new KeyguardController(service, this); } void setRecentTasks(RecentTasks recentTasks) { mRecentTasks = recentTasks; } /** * At the time when the constructor runs, the power manager has not yet been * initialized. So we initialize our wakelocks afterwards. */ void initPowerManagement() { mPowerManager = (PowerManager)mService.mContext.getSystemService(Context.POWER_SERVICE); mGoingToSleep = mPowerManager .newWakeLock(PARTIAL_WAKE_LOCK, "ActivityManager-Sleep"); mLaunchingActivity = mPowerManager.newWakeLock(PARTIAL_WAKE_LOCK, "*launch*"); mLaunchingActivity.setReferenceCounted(false); } // This function returns a IStatusBarService. The value is from ServiceManager. // getService and is cached. private IStatusBarService getStatusBarService() { synchronized (mService) { if (mStatusBarService == null) { mStatusBarService = IStatusBarService.Stub.asInterface( ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); if (mStatusBarService == null) { Slog.w("StatusBarManager", "warning: no STATUS_BAR_SERVICE"); } } return mStatusBarService; } } private IDevicePolicyManager getDevicePolicyManager() { synchronized (mService) { if (mDevicePolicyManager == null) { mDevicePolicyManager = IDevicePolicyManager.Stub.asInterface( ServiceManager.checkService(Context.DEVICE_POLICY_SERVICE)); if (mDevicePolicyManager == null) { Slog.w(TAG, "warning: no DEVICE_POLICY_SERVICE"); } } return mDevicePolicyManager; } } void setWindowManager(WindowManagerService wm) { synchronized (mService) { mWindowManager = wm; mKeyguardController.setWindowManager(wm); mDisplayManager = (DisplayManager)mService.mContext.getSystemService(Context.DISPLAY_SERVICE); mDisplayManager.registerDisplayListener(this, null); mDisplayManagerInternal = LocalServices.getService(DisplayManagerInternal.class); Display[] displays = mDisplayManager.getDisplays(); for (int displayNdx = displays.length - 1; displayNdx >= 0; --displayNdx) { final int displayId = displays[displayNdx].getDisplayId(); ActivityDisplay activityDisplay = new ActivityDisplay(displayId); if (activityDisplay.mDisplay == null) { throw new IllegalStateException("Default Display does not exist"); } mActivityDisplays.put(displayId, activityDisplay); calculateDefaultMinimalSizeOfResizeableTasks(activityDisplay); } mHomeStack = mFocusedStack = mLastFocusedStack = getStack(HOME_STACK_ID, CREATE_IF_NEEDED, ON_TOP); mInputManagerInternal = LocalServices.getService(InputManagerInternal.class); } } ActivityStack getFocusedStack() { return mFocusedStack; } ActivityStack getLastStack() { return mLastFocusedStack; } boolean isFocusedStack(ActivityStack stack) { return stack != null && stack == mFocusedStack; } /** The top most stack on its display. */ boolean isFrontStackOnDisplay(ActivityStack stack) { return isFrontOfStackList(stack, stack.getDisplay().mStacks); } private boolean isFrontOfStackList(ActivityStack stack, List stackList) { return stack == stackList.get((stackList.size() - 1)); } /** NOTE: Should only be called from {@link ActivityStack#moveToFront} */ void setFocusStackUnchecked(String reason, ActivityStack focusCandidate) { if (!focusCandidate.isFocusable()) { // The focus candidate isn't focusable. Move focus to the top stack that is focusable. focusCandidate = getNextFocusableStackLocked(focusCandidate); } if (focusCandidate != mFocusedStack) { mLastFocusedStack = mFocusedStack; mFocusedStack = focusCandidate; EventLogTags.writeAmFocusedStack( mCurrentUser, mFocusedStack == null ? -1 : mFocusedStack.getStackId(), mLastFocusedStack == null ? -1 : mLastFocusedStack.getStackId(), reason); } final ActivityRecord r = topRunningActivityLocked(); if (mService.mBooting || !mService.mBooted) { if (r != null && r.idle) { checkFinishBootingLocked(); } } } void moveHomeStackToFront(String reason) { mHomeStack.moveToFront(reason); } void moveRecentsStackToFront(String reason) { final ActivityStack recentsStack = getStack(RECENTS_STACK_ID); if (recentsStack != null) { recentsStack.moveToFront(reason); } } /** Returns true if the focus activity was adjusted to the home stack top activity. */ boolean moveHomeStackTaskToTop(String reason) { mHomeStack.moveHomeStackTaskToTop(); final ActivityRecord top = getHomeActivity(); if (top == null) { return false; } moveFocusableActivityStackToFrontLocked(top, reason); return true; } boolean resumeHomeStackTask(ActivityRecord prev, String reason) { if (!mService.mBooting && !mService.mBooted) { // Not ready yet! return false; } if (prev != null) { prev.getTask().setTaskToReturnTo(APPLICATION_ACTIVITY_TYPE); } mHomeStack.moveHomeStackTaskToTop(); ActivityRecord r = getHomeActivity(); final String myReason = reason + " resumeHomeStackTask"; // Only resume home activity if isn't finishing. if (r != null && !r.finishing) { moveFocusableActivityStackToFrontLocked(r, myReason); return resumeFocusedStackTopActivityLocked(mHomeStack, prev, null); } return mService.startHomeActivityLocked(mCurrentUser, myReason); } TaskRecord anyTaskForIdLocked(int id) { return anyTaskForIdLocked(id, MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE, INVALID_STACK_ID); } /** * Returns a {@link TaskRecord} for the input id if available. {@code null} otherwise. * @param id Id of the task we would like returned. * @param matchMode The mode to match the given task id in. * @param stackId The stack to restore the task to (default launch stack will be used if * stackId is {@link android.app.ActivityManager.StackId#INVALID_STACK_ID}). Only * valid if the matchMode is * {@link #MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE}. */ TaskRecord anyTaskForIdLocked(int id, @AnyTaskForIdMatchTaskMode int matchMode, int stackId) { // If there is a stack id set, ensure that we are attempting to actually restore a task if (matchMode != MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE && stackId != INVALID_STACK_ID) { throw new IllegalArgumentException("Should not specify stackId for non-restore lookup"); } int numDisplays = mActivityDisplays.size(); for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { ArrayList stacks = mActivityDisplays.valueAt(displayNdx).mStacks; for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { ActivityStack stack = stacks.get(stackNdx); final TaskRecord task = stack.taskForIdLocked(id); if (task != null) { return task; } } } // If we are matching stack tasks only, return now if (matchMode == MATCH_TASK_IN_STACKS_ONLY) { return null; } // Otherwise, check the recent tasks and return if we find it there and we are not restoring // the task from recents if (DEBUG_RECENTS) Slog.v(TAG_RECENTS, "Looking for task id=" + id + " in recents"); final TaskRecord task = mRecentTasks.taskForIdLocked(id); if (task == null) { if (DEBUG_RECENTS) { Slog.d(TAG_RECENTS, "\tDidn't find task id=" + id + " in recents"); } return null; } if (matchMode == MATCH_TASK_IN_STACKS_OR_RECENT_TASKS) { return task; } // Implicitly, this case is MATCH_TASK_IN_STACKS_OR_RECENT_TASKS_AND_RESTORE if (!restoreRecentTaskLocked(task, stackId)) { if (DEBUG_RECENTS) Slog.w(TAG_RECENTS, "Couldn't restore task id=" + id + " found in recents"); return null; } if (DEBUG_RECENTS) Slog.w(TAG_RECENTS, "Restored task id=" + id + " from in recents"); return task; } ActivityRecord isInAnyStackLocked(IBinder token) { int numDisplays = mActivityDisplays.size(); for (int displayNdx = 0; displayNdx < numDisplays; ++displayNdx) { ArrayList stacks = mActivityDisplays.valueAt(displayNdx).mStacks; for (int stackNdx = stacks.size() - 1; stackNdx >= 0; --stackNdx) { final ActivityRecord r = stacks.get(stackNdx).isInStackLocked(token); if (r != null) { return r; } } } return null; } /** * Detects whether we should show a lock screen in front of this task for a locked user. *

* We'll do this if either of the following holds: *

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