Merge "Auto resuming app switch for visible apps" into sc-v2-dev (cf2416d7) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/wm/ActivityStarter.java

+8 −3

Original line number	Diff line number	Diff line
		@@ -72,6 +72,8 @@ import static com.android.server.wm.ActivityTaskManagerDebugConfig.POSTFIX_USER_
		import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_ATM;
		import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_WITH_CLASS_NAME;
		import static com.android.server.wm.ActivityTaskManagerService.ANIMATE;
		import static com.android.server.wm.ActivityTaskManagerService.APP_SWITCH_ALLOW;
		import static com.android.server.wm.ActivityTaskManagerService.APP_SWITCH_FG_ONLY;
		import static com.android.server.wm.ActivityTaskSupervisor.DEFER_RESUME;
		import static com.android.server.wm.ActivityTaskSupervisor.ON_TOP;
		import static com.android.server.wm.ActivityTaskSupervisor.PRESERVE_WINDOWS;
		@@ -1275,7 +1277,10 @@ class ActivityStarter {

		// This is used to block background activity launch even if the app is still
		// visible to user after user clicking home button.
		final boolean appSwitchAllowed = mService.getBalAppSwitchesAllowed();
		final int appSwitchState = mService.getBalAppSwitchesState();
		final boolean appSwitchAllowed = appSwitchState == APP_SWITCH_ALLOW;
		final boolean appSwitchAllowedOrFg =
		appSwitchState == APP_SWITCH_ALLOW \|\| appSwitchState == APP_SWITCH_FG_ONLY;

		// don't abort if the callingUid has a visible window or is a persistent system process
		final int callingUidProcState = mService.mActiveUids.getUidState(callingUid);
		@@ -1288,7 +1293,7 @@ class ActivityStarter {

		// Normal apps with visible app window will be allowed to start activity if app switching
		// is allowed, or apps like live wallpaper with non app visible window will be allowed.
		if (((appSwitchAllowed \|\| mService.mActiveUids.hasNonAppVisibleWindow(callingUid))
		if (((appSwitchAllowedOrFg \|\| mService.mActiveUids.hasNonAppVisibleWindow(callingUid))
		&& callingUidHasAnyVisibleWindow)
		\|\| isCallingUidPersistentSystemProcess) {
		if (DEBUG_ACTIVITY_STARTS) {
		@@ -1426,7 +1431,7 @@ class ActivityStarter {
		// anything that has fallen through would currently be aborted
		Slog.w(TAG, "Background activity start [callingPackage: " + callingPackage
		+ "; callingUid: " + callingUid
		+ "; appSwitchAllowed: " + appSwitchAllowed
		+ "; appSwitchState: " + appSwitchState
		+ "; isCallingUidForeground: " + isCallingUidForeground
		+ "; callingUidHasAnyVisibleWindow: " + callingUidHasAnyVisibleWindow
		+ "; callingUidProcState: " + DebugUtils.valueToString(ActivityManager.class,

services/core/java/com/android/server/wm/ActivityTaskManagerService.java

+38 −6

Original line number	Diff line number	Diff line
		@@ -504,7 +504,27 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
		* Whether normal application switches are allowed; a call to {@link #stopAppSwitches()
		* disables this.
		*/
		private volatile boolean mAppSwitchesAllowed = true;
		private volatile int mAppSwitchesState = APP_SWITCH_ALLOW;

		// The duration of resuming foreground app switch from disallow.
		private static final long RESUME_FG_APP_SWITCH_MS = 500;

		/** App switch is not allowed. */
		static final int APP_SWITCH_DISALLOW = 0;

		/** App switch is allowed only if the activity launch was requested by a foreground app. */
		static final int APP_SWITCH_FG_ONLY = 1;

		/** App switch is allowed. */
		static final int APP_SWITCH_ALLOW = 2;

		@IntDef({
		APP_SWITCH_DISALLOW,
		APP_SWITCH_FG_ONLY,
		APP_SWITCH_ALLOW,
		})
		@Retention(RetentionPolicy.SOURCE)
		@interface AppSwitchState {}

		/**
		* Last stop app switches time, apps finished before this time cannot start background activity
		@@ -1247,7 +1267,7 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
		if (topFocusedRootTask != null && topFocusedRootTask.getTopResumedActivity() != null
		&& topFocusedRootTask.getTopResumedActivity().info.applicationInfo.uid
		== Binder.getCallingUid()) {
		mAppSwitchesAllowed = true;
		mAppSwitchesState = APP_SWITCH_ALLOW;
		}
		}
		return pir.sendInner(0, fillInIntent, resolvedType, allowlistToken, null, null,
		@@ -2158,8 +2178,8 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
		/**
		* Return true if app switching is allowed.
		*/
		boolean getBalAppSwitchesAllowed() {
		return mAppSwitchesAllowed;
		@AppSwitchState int getBalAppSwitchesState() {
		return mAppSwitchesState;
		}

		/** Register an {@link AnrController} to control the ANR dialog behavior */
		@@ -3680,8 +3700,10 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
		public void stopAppSwitches() {
		mAmInternal.enforceCallingPermission(STOP_APP_SWITCHES, "stopAppSwitches");
		synchronized (mGlobalLock) {
		mAppSwitchesAllowed = false;
		mAppSwitchesState = APP_SWITCH_DISALLOW;
		mLastStopAppSwitchesTime = SystemClock.uptimeMillis();
		mH.removeMessages(H.RESUME_FG_APP_SWITCH_MSG);
		mH.sendEmptyMessageDelayed(H.RESUME_FG_APP_SWITCH_MSG, RESUME_FG_APP_SWITCH_MS);
		}
		}

		@@ -3689,7 +3711,8 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
		public void resumeAppSwitches() {
		mAmInternal.enforceCallingPermission(STOP_APP_SWITCHES, "resumeAppSwitches");
		synchronized (mGlobalLock) {
		mAppSwitchesAllowed = true;
		mAppSwitchesState = APP_SWITCH_ALLOW;
		mH.removeMessages(H.RESUME_FG_APP_SWITCH_MSG);
		}
		}

		@@ -5170,6 +5193,7 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
		static final int REPORT_TIME_TRACKER_MSG = 1;
		static final int UPDATE_PROCESS_ANIMATING_STATE = 2;
		static final int END_POWER_MODE_UNKNOWN_VISIBILITY_MSG = 3;
		static final int RESUME_FG_APP_SWITCH_MSG = 4;

		static final int FIRST_ACTIVITY_TASK_MSG = 100;
		static final int FIRST_SUPERVISOR_TASK_MSG = 200;
		@@ -5207,6 +5231,14 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub {
		}
		}
		break;
		case RESUME_FG_APP_SWITCH_MSG: {
		synchronized (mGlobalLock) {
		if (mAppSwitchesState == APP_SWITCH_DISALLOW) {
		mAppSwitchesState = APP_SWITCH_FG_ONLY;
		}
		}
		}
		break;
		}
		}
		}

services/core/java/com/android/server/wm/WindowProcessController.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -37,6 +37,7 @@ import static com.android.server.wm.ActivityTaskManagerDebugConfig.POSTFIX_CONFI
		import static com.android.server.wm.ActivityTaskManagerDebugConfig.POSTFIX_RELEASE;
		import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_ATM;
		import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_WITH_CLASS_NAME;
		import static com.android.server.wm.ActivityTaskManagerService.APP_SWITCH_ALLOW;
		import static com.android.server.wm.ActivityTaskManagerService.INSTRUMENTATION_KEY_DISPATCHING_TIMEOUT_MILLIS;
		import static com.android.server.wm.ActivityTaskManagerService.RELAUNCH_REASON_NONE;

		@@ -512,7 +513,7 @@ public class WindowProcessController extends ConfigurationContainer<Configuratio
		*/
		@HotPath(caller = HotPath.START_SERVICE)
		public boolean areBackgroundFgsStartsAllowed() {
		return areBackgroundActivityStartsAllowed(mAtm.getBalAppSwitchesAllowed(),
		return areBackgroundActivityStartsAllowed(mAtm.getBalAppSwitchesState() == APP_SWITCH_ALLOW,
		true /* isCheckingForFgsStart */);
		}