Latency tracking for Predictive Back. (bcfa0d80) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/util/LatencyTracker.java

+11 −0

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ import static android.content.pm.PackageManager.PERMISSION_GRANTED;
		import static android.os.Trace.TRACE_TAG_APP;
		import static android.provider.DeviceConfig.NAMESPACE_LATENCY_TRACKER;

		import static com.android.internal.util.FrameworkStatsLog.UIACTION_LATENCY_REPORTED__ACTION__ACTION_BACK_SYSTEM_ANIMATION;
		import static com.android.internal.util.FrameworkStatsLog.UIACTION_LATENCY_REPORTED__ACTION__ACTION_CHECK_CREDENTIAL;
		import static com.android.internal.util.FrameworkStatsLog.UIACTION_LATENCY_REPORTED__ACTION__ACTION_CHECK_CREDENTIAL_UNLOCKED;
		import static com.android.internal.util.FrameworkStatsLog.UIACTION_LATENCY_REPORTED__ACTION__ACTION_EXPAND_PANEL;
		@@ -228,6 +229,11 @@ public class LatencyTracker {
		*/
		public static final int ACTION_KEYGUARD_FPS_UNLOCK_TO_HOME = 24;

		/**
		* Time it takes to start back preview surface animation after a back gesture starts.
		*/
		public static final int ACTION_BACK_SYSTEM_ANIMATION = 25;

		private static final int[] ACTIONS_ALL = {
		ACTION_EXPAND_PANEL,
		ACTION_TOGGLE_RECENTS,
		@@ -254,6 +260,7 @@ public class LatencyTracker {
		ACTION_SMARTSPACE_DOORBELL,
		ACTION_NOTIFICATION_BIG_PICTURE_LOADED,
		ACTION_KEYGUARD_FPS_UNLOCK_TO_HOME,
		ACTION_BACK_SYSTEM_ANIMATION,
		};

		/** @hide */
		@@ -283,6 +290,7 @@ public class LatencyTracker {
		ACTION_SMARTSPACE_DOORBELL,
		ACTION_NOTIFICATION_BIG_PICTURE_LOADED,
		ACTION_KEYGUARD_FPS_UNLOCK_TO_HOME,
		ACTION_BACK_SYSTEM_ANIMATION,
		})
		@Retention(RetentionPolicy.SOURCE)
		public @interface Action {
		@@ -315,6 +323,7 @@ public class LatencyTracker {
		UIACTION_LATENCY_REPORTED__ACTION__ACTION_SMARTSPACE_DOORBELL,
		UIACTION_LATENCY_REPORTED__ACTION__ACTION_NOTIFICATION_BIG_PICTURE_LOADED,
		UIACTION_LATENCY_REPORTED__ACTION__ACTION_KEYGUARD_FPS_UNLOCK_TO_HOME,
		UIACTION_LATENCY_REPORTED__ACTION__ACTION_BACK_SYSTEM_ANIMATION,
		};

		private final Object mLock = new Object();
		@@ -503,6 +512,8 @@ public class LatencyTracker {
		return "ACTION_NOTIFICATION_BIG_PICTURE_LOADED";
		case UIACTION_LATENCY_REPORTED__ACTION__ACTION_KEYGUARD_FPS_UNLOCK_TO_HOME:
		return "ACTION_KEYGUARD_FPS_UNLOCK_TO_HOME";
		case UIACTION_LATENCY_REPORTED__ACTION__ACTION_BACK_SYSTEM_ANIMATION:
		return "ACTION_BACK_SYSTEM_ANIMATION";
		default:
		throw new IllegalArgumentException("Invalid action");
		}

libs/WindowManager/Shell/src/com/android/wm/shell/back/BackAnimationController.java

+33 −0

Original line number	Diff line number	Diff line
		@@ -61,6 +61,7 @@ import android.window.IOnBackInvokedCallback;

		import com.android.internal.annotations.VisibleForTesting;
		import com.android.internal.protolog.common.ProtoLog;
		import com.android.internal.util.LatencyTracker;
		import com.android.internal.view.AppearanceRegion;
		import com.android.wm.shell.animation.FlingAnimationUtils;
		import com.android.wm.shell.common.ExternalInterfaceBinder;
		@@ -99,6 +100,7 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
		* Max duration to wait for an animation to finish before triggering the real back.
		*/
		private static final long MAX_ANIMATION_DURATION = 2000;
		private final LatencyTracker mLatencyTracker;

		/** True when a back gesture is ongoing */
		private boolean mBackGestureStarted = false;
		@@ -167,6 +169,7 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont

		private final BackAnimationBackground mAnimationBackground;
		private StatusBarCustomizer mCustomizer;
		private boolean mTrackingLatency;

		public BackAnimationController(
		@NonNull ShellInit shellInit,
		@@ -213,6 +216,7 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
		.setSpeedUpFactor(FLING_SPEED_UP_FACTOR)
		.build();
		mShellBackAnimationRegistry = shellBackAnimationRegistry;
		mLatencyTracker = LatencyTracker.getInstance(mContext);
		}

		private void onInit() {
		@@ -438,6 +442,7 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont

		private void startBackNavigation(@NonNull TouchTracker touchTracker) {
		try {
		startLatencyTracking();
		mBackNavigationInfo = mActivityTaskManager.startBackNavigation(
		mNavigationObserver, mEnableAnimations.get() ? mBackAnimationAdapter : null);
		onBackNavigationInfoReceived(mBackNavigationInfo, touchTracker);
		@@ -452,6 +457,7 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
		ProtoLog.d(WM_SHELL_BACK_PREVIEW, "Received backNavigationInfo:%s", backNavigationInfo);
		if (backNavigationInfo == null) {
		ProtoLog.e(WM_SHELL_BACK_PREVIEW, "Received BackNavigationInfo is null.");
		cancelLatencyTracking();
		return;
		}
		final int backType = backNavigationInfo.getType();
		@@ -462,6 +468,8 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
		}
		} else {
		mActiveCallback = mBackNavigationInfo.getOnBackInvokedCallback();
		// App is handling back animation. Cancel system animation latency tracking.
		cancelLatencyTracking();
		dispatchOnBackStarted(mActiveCallback, touchTracker.createStartEvent(null));
		}
		}
		@@ -808,12 +816,36 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
		ProtoLog.d(WM_SHELL_BACK_PREVIEW, "BackAnimationController: finishBackNavigation()");
		mActiveCallback = null;
		mShellBackAnimationRegistry.resetDefaultCrossActivity();
		cancelLatencyTracking();
		if (mBackNavigationInfo != null) {
		mBackNavigationInfo.onBackNavigationFinished(triggerBack);
		mBackNavigationInfo = null;
		}
		}

		private void startLatencyTracking() {
		if (mTrackingLatency) {
		cancelLatencyTracking();
		}
		mLatencyTracker.onActionStart(LatencyTracker.ACTION_BACK_SYSTEM_ANIMATION);
		mTrackingLatency = true;
		}

		private void cancelLatencyTracking() {
		if (!mTrackingLatency) {
		return;
		}
		mLatencyTracker.onActionCancel(LatencyTracker.ACTION_BACK_SYSTEM_ANIMATION);
		mTrackingLatency = false;
		}

		private void endLatencyTracking() {
		if (!mTrackingLatency) {
		return;
		}
		mLatencyTracker.onActionEnd(LatencyTracker.ACTION_BACK_SYSTEM_ANIMATION);
		mTrackingLatency = false;
		}

		private void createAdapter() {
		IBackAnimationRunner runner =
		@@ -826,6 +858,7 @@ public class BackAnimationController implements RemoteCallable<BackAnimationCont
		IBackAnimationFinishedCallback finishedCallback) {
		mShellExecutor.execute(
		() -> {
		endLatencyTracking();
		if (mBackNavigationInfo == null) {
		ProtoLog.e(WM_SHELL_BACK_PREVIEW,
		"Lack of navigation info to start animation.");