Merge "Set a HW layer for Fragment alpha animation" into mnc-dev (36e39974) · Commits · e / os / android_frameworks_base

core/java/android/app/FragmentManager.java

+89 −0

Original line number	Diff line number	Diff line
		@@ -19,6 +19,9 @@ package android.app;
		import android.animation.Animator;
		import android.animation.AnimatorInflater;
		import android.animation.AnimatorListenerAdapter;
		import android.animation.AnimatorSet;
		import android.animation.PropertyValuesHolder;
		import android.animation.ValueAnimator;
		import android.content.Context;
		import android.content.res.Configuration;
		import android.content.res.TypedArray;
		@@ -403,6 +406,44 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		static final String VIEW_STATE_TAG = "android:view_state";
		static final String USER_VISIBLE_HINT_TAG = "android:user_visible_hint";

		static class AnimateOnHWLayerIfNeededListener implements Animator.AnimatorListener {
		private boolean mShouldRunOnHWLayer = false;
		private View mView;
		public AnimateOnHWLayerIfNeededListener(final View v) {
		if (v == null) {
		return;
		}
		mView = v;
		}

		@Override
		public void onAnimationStart(Animator animation) {
		mShouldRunOnHWLayer = shouldRunOnHWLayer(mView, animation);
		if (mShouldRunOnHWLayer) {
		mView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
		}
		}

		@Override
		public void onAnimationEnd(Animator animation) {
		if (mShouldRunOnHWLayer) {
		mView.setLayerType(View.LAYER_TYPE_NONE, null);
		}
		mView = null;
		animation.removeListener(this);
		}

		@Override
		public void onAnimationCancel(Animator animation) {

		}

		@Override
		public void onAnimationRepeat(Animator animation) {

		}
		}

		ArrayList<Runnable> mPendingActions;
		Runnable[] mTmpActions;
		boolean mExecutingActions;
		@@ -467,6 +508,50 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		throw ex;
		}

		static boolean modifiesAlpha(Animator anim) {
		if (anim == null) {
		return false;
		}
		if (anim instanceof ValueAnimator) {
		ValueAnimator valueAnim = (ValueAnimator) anim;
		PropertyValuesHolder[] values = valueAnim.getValues();
		for (int i = 0; i < values.length; i++) {
		if (("alpha").equals(values[i].getPropertyName())) {
		return true;
		}
		}
		} else if (anim instanceof AnimatorSet) {
		List<Animator> animList = ((AnimatorSet) anim).getChildAnimations();
		for (int i = 0; i < animList.size(); i++) {
		if (modifiesAlpha(animList.get(i))) {
		return true;
		}
		}
		}
		return false;
		}

		static boolean shouldRunOnHWLayer(View v, Animator anim) {
		if (v == null \|\| anim == null) {
		return false;
		}
		return v.getLayerType() == View.LAYER_TYPE_NONE
		&& v.hasOverlappingRendering()
		&& modifiesAlpha(anim);
		}

		/**
		* Sets the to be animated view on hardware layer during the animation.
		*/
		private void setHWLayerAnimListenerIfAlpha(final View v, Animator anim) {
		if (v == null \|\| anim == null) {
		return;
		}
		if (shouldRunOnHWLayer(v, anim)) {
		anim.addListener(new AnimateOnHWLayerIfNeededListener(v));
		}
		}

		@Override
		public FragmentTransaction beginTransaction() {
		return new BackStackRecord(this);
		@@ -894,6 +979,7 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		transitionStyle);
		if (anim != null) {
		anim.setTarget(f.mView);
		setHWLayerAnimListenerIfAlpha(f.mView, anim);
		anim.start();
		}
		container.addView(f.mView);
		@@ -975,6 +1061,7 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		}
		});
		anim.setTarget(f.mView);
		setHWLayerAnimListenerIfAlpha(f.mView, anim);
		anim.start();

		}
		@@ -1188,6 +1275,7 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		}
		}
		});
		setHWLayerAnimListenerIfAlpha(finalFragment.mView, anim);
		anim.start();
		} else {
		fragment.mView.setVisibility(View.GONE);
		@@ -1209,6 +1297,7 @@ final class FragmentManagerImpl extends FragmentManager implements LayoutInflate
		transitionStyle);
		if (anim != null) {
		anim.setTarget(fragment.mView);
		setHWLayerAnimListenerIfAlpha(fragment.mView, anim);
		anim.start();
		}
		fragment.mView.setVisibility(View.VISIBLE);