Merge "Set Launcher alpha to 0 during Desktop exit transition." into main (4209c716) · Commits · e / os / android_frameworks_base

packages/SystemUI/animation/src/com/android/systemui/animation/RemoteAnimationRunnerCompat.java

+38 −0

Original line number	Diff line number	Diff line
		@@ -22,8 +22,14 @@ import static android.view.WindowManager.TRANSIT_OLD_NONE;
		import static android.view.WindowManager.TRANSIT_OPEN;
		import static android.view.WindowManager.TRANSIT_TO_BACK;
		import static android.view.WindowManager.TRANSIT_TO_FRONT;
		import static android.window.DesktopModeFlags.ENABLE_DESKTOP_WINDOWING_EXIT_TRANSITIONS;
		import static android.window.TransitionInfo.FLAG_IS_WALLPAPER;

		import static com.android.internal.util.Preconditions.checkArgument;
		import static com.android.wm.shell.shared.TransitionUtil.isClosingMode;
		import static com.android.wm.shell.shared.TransitionUtil.isClosingType;
		import static com.android.wm.shell.shared.TransitionUtil.isOpeningMode;

		import android.os.IBinder;
		import android.os.RemoteException;
		import android.util.ArrayMap;
		@@ -157,6 +163,9 @@ public abstract class RemoteAnimationRunnerCompat extends IRemoteAnimationRunner
		t.show(wallpapers[i].leash);
		t.setAlpha(wallpapers[i].leash, 1.f);
		}
		if (ENABLE_DESKTOP_WINDOWING_EXIT_TRANSITIONS.isTrue()) {
		resetLauncherAlphaOnDesktopExit(info, launcherTask, leashMap, t);
		}
		} else {
		if (launcherTask != null) {
		counterLauncher.addChild(t, leashMap.get(launcherTask.getLeash()));
		@@ -236,4 +245,33 @@ public abstract class RemoteAnimationRunnerCompat extends IRemoteAnimationRunner
		}
		};
		}

		/**
		* Reset the alpha of the Launcher leash to give the Launcher time to hide its Views before the
		* exit-desktop animation starts.
		*
		* This method should only be called if the current transition is opening Launcher, otherwise we
		* might not be exiting Desktop Mode.
		*/
		private static void resetLauncherAlphaOnDesktopExit(
		TransitionInfo info,
		TransitionInfo.Change launcherChange,
		ArrayMap<SurfaceControl, SurfaceControl> leashMap,
		SurfaceControl.Transaction startTransaction
		) {
		checkArgument(isOpeningMode(launcherChange.getMode()));
		if (!isClosingType(info.getType())) {
		return;
		}
		for (int i = info.getChanges().size() - 1; i >= 0; --i) {
		final TransitionInfo.Change change = info.getChanges().get(i);
		// skip changes that we didn't wrap
		if (!leashMap.containsKey(change.getLeash())) continue;
		// Only make the update if we are closing Desktop tasks.
		if (change.getTaskInfo().isFreeform() && isClosingMode(change.getMode())) {
		startTransaction.setAlpha(leashMap.get(launcherChange.getLeash()), 0f);
		return;
		}
		}
		}
		}