Merge "Implement fade animation on SplitDecorManager" into tm-dev (56c61994) · Commits · e / os / android_frameworks_base

libs/WindowManager/Shell/src/com/android/wm/shell/common/split/SplitDecorManager.java

+89 −5

Original line number	Diff line number	Diff line
		@@ -23,6 +23,9 @@ import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_TRUSTED_OVERL
		import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
		import static android.view.WindowManagerPolicyConstants.SPLIT_DIVIDER_LAYER;

		import android.animation.Animator;
		import android.animation.AnimatorListenerAdapter;
		import android.animation.ValueAnimator;
		import android.app.ActivityManager;
		import android.content.Context;
		import android.content.res.Configuration;
		@@ -42,6 +45,8 @@ import android.view.WindowlessWindowManager;
		import android.widget.FrameLayout;
		import android.widget.ImageView;

		import androidx.annotation.NonNull;

		import com.android.launcher3.icons.IconProvider;
		import com.android.wm.shell.R;
		import com.android.wm.shell.common.SurfaceUtils;
		@@ -52,6 +57,7 @@ import com.android.wm.shell.common.SurfaceUtils;
		public class SplitDecorManager extends WindowlessWindowManager {
		private static final String TAG = SplitDecorManager.class.getSimpleName();
		private static final String RESIZING_BACKGROUND_SURFACE_NAME = "ResizingBackground";
		private static final long FADE_DURATION = 133;

		private final IconProvider mIconProvider;
		private final SurfaceSession mSurfaceSession;
		@@ -63,6 +69,11 @@ public class SplitDecorManager extends WindowlessWindowManager {
		private SurfaceControl mIconLeash;
		private SurfaceControl mBackgroundLeash;

		private boolean mShown;
		private boolean mIsResizing;
		private Rect mBounds = new Rect();
		private ValueAnimator mFadeAnimator;

		public SplitDecorManager(Configuration configuration, IconProvider iconProvider,
		SurfaceSession surfaceSession) {
		super(configuration, null /* rootSurface /, null / hostInputToken */);
		@@ -137,16 +148,19 @@ public class SplitDecorManager extends WindowlessWindowManager {
		return;
		}

		if (!mIsResizing) {
		mIsResizing = true;
		mBounds.set(newBounds);
		}

		if (mBackgroundLeash == null) {
		mBackgroundLeash = SurfaceUtils.makeColorLayer(mHostLeash,
		RESIZING_BACKGROUND_SURFACE_NAME, mSurfaceSession);
		t.setColor(mBackgroundLeash, getResizingBackgroundColor(resizingTask))
		.setLayer(mBackgroundLeash, SPLIT_DIVIDER_LAYER - 1)
		.show(mBackgroundLeash);
		.setLayer(mBackgroundLeash, SPLIT_DIVIDER_LAYER - 1);
		}

		if (mIcon == null && resizingTask.topActivityInfo != null) {
		// TODO: add fade-in animation.
		mIcon = mIconProvider.getIcon(resizingTask.topActivityInfo);
		mResizingIconView.setImageDrawable(mIcon);
		mResizingIconView.setVisibility(View.VISIBLE);
		@@ -156,12 +170,20 @@ public class SplitDecorManager extends WindowlessWindowManager {
		lp.width = mIcon.getIntrinsicWidth();
		lp.height = mIcon.getIntrinsicHeight();
		mViewHost.relayout(lp);
		t.show(mIconLeash).setLayer(mIconLeash, SPLIT_DIVIDER_LAYER);
		t.setLayer(mIconLeash, SPLIT_DIVIDER_LAYER);
		}

		t.setPosition(mIconLeash,
		newBounds.width() / 2 - mIcon.getIntrinsicWidth() / 2,
		newBounds.height() / 2 - mIcon.getIntrinsicWidth() / 2);

		boolean show = newBounds.width() > mBounds.width() \|\| newBounds.height() > mBounds.height();
		if (show != mShown) {
		if (mFadeAnimator != null && mFadeAnimator.isRunning()) {
		mFadeAnimator.cancel();
		}
		startFadeAnimation(show, false /* releaseLeash */);
		mShown = show;
		}
		}

		/** Stops showing resizing hint. */
		@@ -170,6 +192,68 @@ public class SplitDecorManager extends WindowlessWindowManager {
		return;
		}

		mIsResizing = false;
		if (mFadeAnimator != null && mFadeAnimator.isRunning()) {
		if (!mShown) {
		// If fade-out animation is running, just add release callback to it.
		SurfaceControl.Transaction finishT = new SurfaceControl.Transaction();
		mFadeAnimator.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationEnd(Animator animation) {
		releaseLeash(finishT);
		finishT.apply();
		finishT.close();
		}
		});
		return;
		}

		// If fade-in animation is running, cancel it and re-run fade-out one.
		mFadeAnimator.cancel();
		}
		if (mShown) {
		startFadeAnimation(false /* show /, true / releaseLeash */);
		mShown = false;
		} else {
		// Surface is hidden so release it directly.
		releaseLeash(t);
		}
		}

		private void startFadeAnimation(boolean show, boolean releaseLeash) {
		final SurfaceControl.Transaction animT = new SurfaceControl.Transaction();
		mFadeAnimator = ValueAnimator.ofFloat(0f, 1f);
		mFadeAnimator.setDuration(FADE_DURATION);
		mFadeAnimator.addUpdateListener(valueAnimator-> {
		final float progress = (float) valueAnimator.getAnimatedValue();
		animT.setAlpha(mBackgroundLeash, show ? progress : 1 - progress);
		animT.setAlpha(mIconLeash, show ? progress : 1 - progress);
		animT.apply();
		});
		mFadeAnimator.addListener(new AnimatorListenerAdapter() {
		@Override
		public void onAnimationStart(@NonNull Animator animation) {
		if (show) {
		animT.show(mBackgroundLeash).show(mIconLeash).apply();
		}
		}

		@Override
		public void onAnimationEnd(@NonNull Animator animation) {
		if (!show) {
		animT.hide(mBackgroundLeash).hide(mIconLeash).apply();
		}
		if (releaseLeash) {
		releaseLeash(animT);
		animT.apply();
		}
		animT.close();
		}
		});
		mFadeAnimator.start();
		}

		private void releaseLeash(SurfaceControl.Transaction t) {
		if (mBackgroundLeash != null) {
		t.remove(mBackgroundLeash);
		mBackgroundLeash = null;