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Merge "[Unfold transition] Fully manage the vignette on the background thread" into tm-qpr-dev am: c514109b3b

Browse Source 
Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20725066

Change-Id: I6d7376119f00699a87b39f8be06995b03eeb2446
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Nick Chameyev
2022-12-16 16:03:38 +00:00
committed by Automerger Merge Worker
parent 73a9385100 c514109b3b
commit 1d4d3eb56f
12 changed files with 123 additions and 128 deletions
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37
packages/SystemUI/src/com/android/keyguard/mediator/ScreenOnCoordinator.kt
View File

@@ -16,31 +16,25 @@
package com.android.keyguard.mediator
import android.annotation.BinderThread
import android.os.Trace
import com.android.systemui.dagger.SysUISingleton
import com.android.systemui.keyguard.ScreenLifecycle
import com.android.systemui.util.concurrency.Execution
import com.android.systemui.util.concurrency.PendingTasksContainer
import com.android.systemui.unfold.SysUIUnfoldComponent
import com.android.systemui.util.concurrency.PendingTasksContainer
import com.android.systemui.util.kotlin.getOrNull
import java.util.Optional
import javax.inject.Inject
/**
* Coordinates screen on/turning on animations for the KeyguardViewMediator. Specifically for
* screen on events, this will invoke the onDrawn Runnable after all tasks have completed. This
* should route back to the KeyguardService, which informs the system_server that keyguard has
* drawn.
* should route back to the [com.android.systemui.keyguard.KeyguardService], which informs
* the system_server that keyguard has drawn.
*/
@SysUISingleton
class ScreenOnCoordinator @Inject constructor(
screenLifecycle: ScreenLifecycle,
unfoldComponent: Optional<SysUIUnfoldComponent>,
private val execution: Execution
) : ScreenLifecycle.Observer {
unfoldComponent: Optional<SysUIUnfoldComponent>
) {
private val unfoldLightRevealAnimation = unfoldComponent.map(
SysUIUnfoldComponent::getUnfoldLightRevealOverlayAnimation).getOrNull()
@@ -48,15 +42,12 @@ class ScreenOnCoordinator @Inject constructor(
SysUIUnfoldComponent::getFoldAodAnimationController).getOrNull()
private val pendingTasks = PendingTasksContainer()
init {
screenLifecycle.addObserver(this)
}
/**
* When turning on, registers tasks that may need to run before invoking [onDrawn].
* This is called on a binder thread from [com.android.systemui.keyguard.KeyguardService].
*/
override fun onScreenTurningOn(onDrawn: Runnable) {
execution.assertIsMainThread()
@BinderThread
fun onScreenTurningOn(onDrawn: Runnable) {
Trace.beginSection("ScreenOnCoordinator#onScreenTurningOn")
pendingTasks.reset()
@@ -68,11 +59,13 @@ class ScreenOnCoordinator @Inject constructor(
Trace.endSection()
}
override fun onScreenTurnedOn() {
execution.assertIsMainThread()
/**
* Called when screen is fully turned on and screen on blocker is removed.
* This is called on a binder thread from [com.android.systemui.keyguard.KeyguardService].
*/
@BinderThread
fun onScreenTurnedOn() {
foldAodAnimationController?.onScreenTurnedOn()
pendingTasks.reset()
}
}

28
packages/SystemUI/src/com/android/systemui/keyguard/KeyguardLifecyclesDispatcher.java
View File

@@ -18,11 +18,8 @@ package com.android.systemui.keyguard;
import android.os.Handler;
import android.os.Message;
import android.os.RemoteException;
import android.os.Trace;
import android.util.Log;
import com.android.internal.policy.IKeyguardDrawnCallback;
import com.android.systemui.dagger.SysUISingleton;
import javax.inject.Inject;
@@ -80,33 +77,10 @@ public class KeyguardLifecyclesDispatcher {
private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
final Object obj = msg.obj;
switch (msg.what) {
case SCREEN_TURNING_ON:
Trace.beginSection("KeyguardLifecyclesDispatcher#SCREEN_TURNING_ON");
final String onDrawWaitingTraceTag =
"Waiting for KeyguardDrawnCallback#onDrawn";
int traceCookie = System.identityHashCode(msg);
Trace.beginAsyncSection(onDrawWaitingTraceTag, traceCookie);
// Ensure the drawn callback is only ever called once
mScreenLifecycle.dispatchScreenTurningOn(new Runnable() {
boolean mInvoked;
@Override
public void run() {
if (obj == null) return;
if (!mInvoked) {
mInvoked = true;
try {
Trace.endAsyncSection(onDrawWaitingTraceTag, traceCookie);
((IKeyguardDrawnCallback) obj).onDrawn();
} catch (RemoteException e) {
Log.w(TAG, "Exception calling onDrawn():", e);
}
} else {
Log.w(TAG, "KeyguardDrawnCallback#onDrawn() invoked > 1 times");
}
}
});
mScreenLifecycle.dispatchScreenTurningOn();
Trace.endSection();
break;
case SCREEN_TURNED_ON:

30
packages/SystemUI/src/com/android/systemui/keyguard/KeyguardService.java
View File

@@ -78,6 +78,7 @@ import com.android.internal.policy.IKeyguardDrawnCallback;
import com.android.internal.policy.IKeyguardExitCallback;
import com.android.internal.policy.IKeyguardService;
import com.android.internal.policy.IKeyguardStateCallback;
import com.android.keyguard.mediator.ScreenOnCoordinator;
import com.android.systemui.SystemUIApplication;
import com.android.wm.shell.transition.ShellTransitions;
import com.android.wm.shell.transition.Transitions;
@@ -120,6 +121,7 @@ public class KeyguardService extends Service {
private final KeyguardViewMediator mKeyguardViewMediator;
private final KeyguardLifecyclesDispatcher mKeyguardLifecyclesDispatcher;
private final ScreenOnCoordinator mScreenOnCoordinator;
private final ShellTransitions mShellTransitions;
private static int newModeToLegacyMode(int newMode) {
@@ -283,10 +285,12 @@ public class KeyguardService extends Service {
@Inject
public KeyguardService(KeyguardViewMediator keyguardViewMediator,
KeyguardLifecyclesDispatcher keyguardLifecyclesDispatcher,
ScreenOnCoordinator screenOnCoordinator,
ShellTransitions shellTransitions) {
super();
mKeyguardViewMediator = keyguardViewMediator;
mKeyguardLifecyclesDispatcher = keyguardLifecyclesDispatcher;
mScreenOnCoordinator = screenOnCoordinator;
mShellTransitions = shellTransitions;
}
@@ -583,6 +587,31 @@ public class KeyguardService extends Service {
checkPermission();
mKeyguardLifecyclesDispatcher.dispatch(KeyguardLifecyclesDispatcher.SCREEN_TURNING_ON,
callback);
final String onDrawWaitingTraceTag = "Waiting for KeyguardDrawnCallback#onDrawn";
final int traceCookie = System.identityHashCode(callback);
Trace.beginAsyncSection(onDrawWaitingTraceTag, traceCookie);
// Ensure the drawn callback is only ever called once
mScreenOnCoordinator.onScreenTurningOn(new Runnable() {
boolean mInvoked;
@Override
public void run() {
if (callback == null) return;
if (!mInvoked) {
mInvoked = true;
try {
Trace.endAsyncSection(onDrawWaitingTraceTag, traceCookie);
callback.onDrawn();
} catch (RemoteException e) {
Log.w(TAG, "Exception calling onDrawn():", e);
}
} else {
Log.w(TAG, "KeyguardDrawnCallback#onDrawn() invoked > 1 times");
}
}
});
Trace.endSection();
}
@@ -591,6 +620,7 @@ public class KeyguardService extends Service {
Trace.beginSection("KeyguardService.mBinder#onScreenTurnedOn");
checkPermission();
mKeyguardLifecyclesDispatcher.dispatch(KeyguardLifecyclesDispatcher.SCREEN_TURNED_ON);
mScreenOnCoordinator.onScreenTurnedOn();
Trace.endSection();
}

2
packages/SystemUI/src/com/android/systemui/keyguard/LifecycleScreenStatusProvider.kt
View File

@@ -46,7 +46,7 @@ class LifecycleScreenStatusProvider @Inject constructor(screenLifecycle: ScreenL
listeners.forEach(ScreenListener::onScreenTurningOff)
}
override fun onScreenTurningOn(ignored: Runnable) {
override fun onScreenTurningOn() {
listeners.forEach(ScreenListener::onScreenTurningOn)
}
}

18
packages/SystemUI/src/com/android/systemui/keyguard/ScreenLifecycle.java
View File

@@ -18,8 +18,6 @@ package com.android.systemui.keyguard;
import android.os.Trace;
import androidx.annotation.NonNull;
import com.android.systemui.Dumpable;
import com.android.systemui.dump.DumpManager;
@@ -50,14 +48,9 @@ public class ScreenLifecycle extends Lifecycle<ScreenLifecycle.Observer> impleme
return mScreenState;
}
/**
* Dispatch screen turning on events to the registered observers
*
* @param onDrawn Invoke to notify the caller that the event has been processed
*/
public void dispatchScreenTurningOn(@NonNull Runnable onDrawn) {
public void dispatchScreenTurningOn() {
setScreenState(SCREEN_TURNING_ON);
dispatch(Observer::onScreenTurningOn, onDrawn);
dispatch(Observer::onScreenTurningOn);
}
public void dispatchScreenTurnedOn() {
@@ -87,12 +80,7 @@ public class ScreenLifecycle extends Lifecycle<ScreenLifecycle.Observer> impleme
}
public interface Observer {
/**
* Receive the screen turning on event
*
* @param onDrawn Invoke to notify the caller that the event has been processed
*/
default void onScreenTurningOn(@NonNull Runnable onDrawn) {}
default void onScreenTurningOn() {}
default void onScreenTurnedOn() {}
default void onScreenTurningOff() {}
default void onScreenTurnedOff() {}

2
packages/SystemUI/src/com/android/systemui/recents/OverviewProxyService.java
View File

@@ -889,7 +889,7 @@ public class OverviewProxyService implements CallbackController<OverviewProxyLis
* Notifies the Launcher that screen is starting to turn on.
*/
@Override
public void onScreenTurningOn(@NonNull Runnable ignored) {
public void onScreenTurningOn() {
try {
if (mOverviewProxy != null) {
mOverviewProxy.onScreenTurningOn();

2
packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java
View File

@@ -3575,7 +3575,7 @@ public class CentralSurfacesImpl implements CoreStartable, CentralSurfaces {
final ScreenLifecycle.Observer mScreenObserver = new ScreenLifecycle.Observer() {
@Override
public void onScreenTurningOn(Runnable onDrawn) {
public void onScreenTurningOn() {
mFalsingCollector.onScreenTurningOn();
mNotificationPanelViewController.onScreenTurningOn();
}

14
packages/SystemUI/src/com/android/systemui/unfold/FoldAodAnimationController.kt
View File

@@ -16,6 +16,7 @@
package com.android.systemui.unfold
import android.annotation.BinderThread
import android.content.Context
import android.hardware.devicestate.DeviceStateManager
import android.os.PowerManager
@@ -41,7 +42,6 @@ import java.util.function.Consumer
import javax.inject.Inject
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Job
import kotlinx.coroutines.flow.collect
import kotlinx.coroutines.launch
/**
@@ -52,7 +52,7 @@ import kotlinx.coroutines.launch
class FoldAodAnimationController
@Inject
constructor(
@Main private val executor: DelayableExecutor,
@Main private val mainExecutor: DelayableExecutor,
private val context: Context,
private val deviceStateManager: DeviceStateManager,
private val wakefulnessLifecycle: WakefulnessLifecycle,
@@ -89,7 +89,7 @@ constructor(
override fun initialize(centralSurfaces: CentralSurfaces, lightRevealScrim: LightRevealScrim) {
this.centralSurfaces = centralSurfaces
deviceStateManager.registerCallback(executor, FoldListener())
deviceStateManager.registerCallback(mainExecutor, FoldListener())
wakefulnessLifecycle.addObserver(this)
// TODO(b/254878364): remove this call to NPVC.getView()
@@ -139,7 +139,8 @@ constructor(
* @param onReady callback when the animation is ready
* @see [com.android.systemui.keyguard.KeyguardViewMediator]
*/
fun onScreenTurningOn(onReady: Runnable) {
@BinderThread
fun onScreenTurningOn(onReady: Runnable) = mainExecutor.execute {
if (shouldPlayAnimation) {
// The device was not dozing and going to sleep after folding, play the animation
@@ -179,12 +180,13 @@ constructor(
}
}
fun onScreenTurnedOn() {
@BinderThread
fun onScreenTurnedOn() = mainExecutor.execute {
if (shouldPlayAnimation) {
cancelAnimation?.run()
// Post starting the animation to the next frame to avoid junk due to inset changes
cancelAnimation = executor.executeDelayed(startAnimationRunnable, /* delayMillis= */ 0)
cancelAnimation = mainExecutor.executeDelayed(startAnimationRunnable, /* delayMillis= */ 0)
shouldPlayAnimation = false
}
}

88
packages/SystemUI/src/com/android/systemui/unfold/UnfoldLightRevealOverlayAnimation.kt
View File

@@ -15,6 +15,7 @@
*/
package com.android.systemui.unfold
import android.annotation.BinderThread
import android.content.ContentResolver
import android.content.Context
import android.graphics.PixelFormat
@@ -34,9 +35,7 @@ import android.view.SurfaceControlViewHost
import android.view.SurfaceSession
import android.view.WindowManager
import android.view.WindowlessWindowManager
import com.android.systemui.dagger.qualifiers.Background
import com.android.systemui.dagger.qualifiers.Main
import com.android.systemui.dagger.qualifiers.UiBackground
import com.android.systemui.statusbar.LightRevealEffect
import com.android.systemui.statusbar.LightRevealScrim
import com.android.systemui.statusbar.LinearLightRevealEffect
@@ -45,7 +44,7 @@ import com.android.systemui.unfold.UnfoldLightRevealOverlayAnimation.AddOverlayR
import com.android.systemui.unfold.UnfoldTransitionProgressProvider.TransitionProgressListener
import com.android.systemui.unfold.updates.RotationChangeProvider
import com.android.systemui.unfold.util.ScaleAwareTransitionProgressProvider.Companion.areAnimationsEnabled
import com.android.systemui.util.Assert.isMainThread
import com.android.systemui.util.concurrency.ThreadFactory
import com.android.systemui.util.traceSection
import com.android.wm.shell.displayareahelper.DisplayAreaHelper
import java.util.Optional
@@ -64,14 +63,16 @@ constructor(
private val unfoldTransitionProgressProvider: UnfoldTransitionProgressProvider,
private val displayAreaHelper: Optional<DisplayAreaHelper>,
@Main private val executor: Executor,
@UiBackground private val backgroundExecutor: Executor,
@Background private val bgHandler: Handler,
private val threadFactory: ThreadFactory,
private val rotationChangeProvider: RotationChangeProvider,
) {
private val transitionListener = TransitionListener()
private val rotationWatcher = RotationWatcher()
private lateinit var bgHandler: Handler
private lateinit var bgExecutor: Executor
private lateinit var wwm: WindowlessWindowManager
private lateinit var unfoldedDisplayInfo: DisplayInfo
private lateinit var overlayContainer: SurfaceControl
@@ -84,7 +85,12 @@ constructor(
private var currentRotation: Int = context.display!!.rotation
fun init() {
deviceStateManager.registerCallback(executor, FoldListener())
// This method will be called only on devices where this animation is enabled,
// so normally this thread won't be created
bgHandler = threadFactory.buildHandlerOnNewThread(TAG)
bgExecutor = threadFactory.buildDelayableExecutorOnHandler(bgHandler)
deviceStateManager.registerCallback(bgExecutor, FoldListener())
unfoldTransitionProgressProvider.addCallback(transitionListener)
rotationChangeProvider.addCallback(rotationWatcher)
@@ -122,20 +128,23 @@ constructor(
* @param onOverlayReady callback when the overlay is drawn and visible on the screen
* @see [com.android.systemui.keyguard.KeyguardViewMediator]
*/
@BinderThread
fun onScreenTurningOn(onOverlayReady: Runnable) {
Trace.beginSection("UnfoldLightRevealOverlayAnimation#onScreenTurningOn")
try {
// Add the view only if we are unfolding and this is the first screen on
if (!isFolded && !isUnfoldHandled && contentResolver.areAnimationsEnabled()) {
executeInBackground { addOverlay(onOverlayReady, reason = UNFOLD) }
isUnfoldHandled = true
} else {
// No unfold transition, immediately report that overlay is ready
executeInBackground { ensureOverlayRemoved() }
onOverlayReady.run()
executeInBackground {
Trace.beginSection("$TAG#onScreenTurningOn")
try {
// Add the view only if we are unfolding and this is the first screen on
if (!isFolded && !isUnfoldHandled && contentResolver.areAnimationsEnabled()) {
addOverlay(onOverlayReady, reason = UNFOLD)
isUnfoldHandled = true
} else {
// No unfold transition, immediately report that overlay is ready
ensureOverlayRemoved()
onOverlayReady.run()
}
} finally {
Trace.endSection()
}
} finally {
Trace.endSection()
}
}
@@ -154,17 +163,18 @@ constructor(
LightRevealScrim(context, null).apply {
revealEffect = createLightRevealEffect()
isScrimOpaqueChangedListener = Consumer {}
revealAmount = when (reason) {
FOLD -> TRANSPARENT
UNFOLD -> BLACK
}
revealAmount =
when (reason) {
FOLD -> TRANSPARENT
UNFOLD -> BLACK
}
}
val params = getLayoutParams()
newRoot.setView(newView, params)
if (onOverlayReady != null) {
Trace.beginAsyncSection("UnfoldLightRevealOverlayAnimation#relayout", 0)
Trace.beginAsyncSection("$TAG#relayout", 0)
newRoot.relayout(params) { transaction ->
val vsyncId = Choreographer.getSfInstance().vsyncId
@@ -179,8 +189,8 @@ constructor(
transaction
.setFrameTimelineVsync(vsyncId + 1)
.addTransactionCommittedListener(backgroundExecutor) {
Trace.endAsyncSection("UnfoldLightRevealOverlayAnimation#relayout", 0)
.addTransactionCommittedListener(bgExecutor) {
Trace.endAsyncSection("$TAG#relayout", 0)
onOverlayReady.run()
}
.apply()
@@ -233,7 +243,8 @@ constructor(
}
private fun getUnfoldedDisplayInfo(): DisplayInfo =
displayManager.getDisplays(DisplayManager.DISPLAY_CATEGORY_ALL_INCLUDING_DISABLED)
displayManager
.getDisplays(DisplayManager.DISPLAY_CATEGORY_ALL_INCLUDING_DISABLED)
.asSequence()
.map { DisplayInfo().apply { it.getDisplayInfo(this) } }
.filter { it.type == Display.TYPE_INTERNAL }
@@ -261,10 +272,10 @@ constructor(
private inner class RotationWatcher : RotationChangeProvider.RotationListener {
override fun onRotationChanged(newRotation: Int) {
traceSection("UnfoldLightRevealOverlayAnimation#onRotationChanged") {
if (currentRotation != newRotation) {
currentRotation = newRotation
executeInBackground {
executeInBackground {
traceSection("$TAG#onRotationChanged") {
if (currentRotation != newRotation) {
currentRotation = newRotation
scrimView?.revealEffect = createLightRevealEffect()
root?.relayout(getLayoutParams())
}
@@ -274,7 +285,10 @@ constructor(
}
private fun executeInBackground(f: () -> Unit) {
ensureInMainThread()
check(Looper.myLooper() != bgHandler.looper) {
"Trying to execute using background handler while already running" +
" in the background handler"
}
// The UiBackground executor is not used as it doesn't have a prepared looper.
bgHandler.post(f)
}
@@ -283,25 +297,25 @@ constructor(
check(Looper.myLooper() == bgHandler.looper) { "Not being executed in the background!" }
}
private fun ensureInMainThread() {
isMainThread()
}
private inner class FoldListener :
FoldStateListener(
context,
Consumer { isFolded ->
if (isFolded) {
executeInBackground { ensureOverlayRemoved() }
ensureOverlayRemoved()
isUnfoldHandled = false
}
this.isFolded = isFolded
}
)
private enum class AddOverlayReason { FOLD, UNFOLD }
private enum class AddOverlayReason {
FOLD,
UNFOLD
}
private companion object {
const val TAG = "UnfoldLightRevealOverlayAnimation"
const val ROTATION_ANIMATION_OVERLAY_Z_INDEX = Integer.MAX_VALUE
// Put the unfold overlay below the rotation animation screenshot to hide the moment

7
packages/SystemUI/src/com/android/systemui/util/concurrency/PendingTasksContainer.kt
View File

@@ -25,8 +25,11 @@ import java.util.concurrent.atomic.AtomicReference
*/
class PendingTasksContainer {
private var pendingTasksCount: AtomicInteger = AtomicInteger(0)
private var completionCallback: AtomicReference<Runnable> = AtomicReference()
@Volatile
private var pendingTasksCount = AtomicInteger(0)
@Volatile
private var completionCallback = AtomicReference<Runnable>()
/**
* Registers a task that we should wait for

13
packages/SystemUI/tests/src/com/android/keyguard/mediator/ScreenOnCoordinatorTest.kt
View File

@@ -52,8 +52,6 @@ class ScreenOnCoordinatorTest : SysuiTestCase() {
private lateinit var foldAodAnimationController: FoldAodAnimationController
@Mock
private lateinit var unfoldAnimation: UnfoldLightRevealOverlayAnimation
@Mock
private lateinit var screenLifecycle: ScreenLifecycle
@Captor
private lateinit var readyCaptor: ArgumentCaptor<Runnable>
@@ -69,13 +67,8 @@ class ScreenOnCoordinatorTest : SysuiTestCase() {
.thenReturn(foldAodAnimationController)
screenOnCoordinator = ScreenOnCoordinator(
screenLifecycle,
Optional.of(unfoldComponent),
FakeExecution()
)
// Make sure screen events are registered to observe
verify(screenLifecycle).addObserver(screenOnCoordinator)
}
@Test
@@ -93,9 +86,7 @@ class ScreenOnCoordinatorTest : SysuiTestCase() {
fun testUnfoldTransitionDisabledDrawnTasksReady_onScreenTurningOn_callsDrawnCallback() {
// Recreate with empty unfoldComponent
screenOnCoordinator = ScreenOnCoordinator(
screenLifecycle,
Optional.empty(),
FakeExecution()
)
screenOnCoordinator.onScreenTurningOn(runnable)
@@ -105,11 +96,11 @@ class ScreenOnCoordinatorTest : SysuiTestCase() {
private fun onUnfoldOverlayReady() {
verify(unfoldAnimation).onScreenTurningOn(capture(readyCaptor))
readyCaptor.getValue().run()
readyCaptor.value.run()
}
private fun onFoldAodReady() {
verify(foldAodAnimationController).onScreenTurningOn(capture(readyCaptor))
readyCaptor.getValue().run()
readyCaptor.value.run()
}
}

10
packages/SystemUI/tests/src/com/android/systemui/keyguard/ScreenLifecycleTest.java
View File

@@ -58,15 +58,15 @@ public class ScreenLifecycleTest extends SysuiTestCase {
@Test
public void screenTurningOn() throws Exception {
Runnable onDrawn = () -> {};
mScreen.dispatchScreenTurningOn(onDrawn);
mScreen.dispatchScreenTurningOn();
assertEquals(ScreenLifecycle.SCREEN_TURNING_ON, mScreen.getScreenState());
verify(mScreenObserverMock).onScreenTurningOn(onDrawn);
verify(mScreenObserverMock).onScreenTurningOn();
}
@Test
public void screenTurnedOn() throws Exception {
mScreen.dispatchScreenTurningOn(null);
mScreen.dispatchScreenTurningOn();
mScreen.dispatchScreenTurnedOn();
assertEquals(ScreenLifecycle.SCREEN_ON, mScreen.getScreenState());
@@ -75,7 +75,7 @@ public class ScreenLifecycleTest extends SysuiTestCase {
@Test
public void screenTurningOff() throws Exception {
mScreen.dispatchScreenTurningOn(null);
mScreen.dispatchScreenTurningOn();
mScreen.dispatchScreenTurnedOn();
mScreen.dispatchScreenTurningOff();
@@ -85,7 +85,7 @@ public class ScreenLifecycleTest extends SysuiTestCase {
@Test
public void screenTurnedOff() throws Exception {
mScreen.dispatchScreenTurningOn(null);
mScreen.dispatchScreenTurningOn();
mScreen.dispatchScreenTurnedOn();
mScreen.dispatchScreenTurningOff();
mScreen.dispatchScreenTurnedOff();