Add more reverse support to AnimatedVD (7bc6a3f0) · Commits · e / os / android_frameworks_base

core/java/android/animation/Animator.java

+16 −0

Original line number	Diff line number	Diff line
		@@ -356,6 +356,22 @@ public abstract class Animator implements Cloneable {
		public void setTarget(Object target) {
		}

		// Hide reverse() and canReverse() for now since reverse() only work for simple
		// cases, like we don't support sequential, neither startDelay.
		// TODO: make reverse() works for all the Animators.
		/**
		* @hide
		*/
		public boolean canReverse() {
		return false;
		}

		/**
		* @hide
		*/
		public void reverse() {
		}

		/**
		* <p>An animation listener receives notifications from an animation.
		* Notifications indicate animation related events, such as the end or the

core/java/android/animation/AnimatorSet.java

+39 −2

Original line number	Diff line number	Diff line
		@@ -124,7 +124,7 @@ public final class AnimatorSet extends Animator {
		// was set on this AnimatorSet, so it should not be passed down to the children.
		private TimeInterpolator mInterpolator = null;


		private boolean mReversible = true;
		/**
		* Sets up this AnimatorSet to play all of the supplied animations at the same time.
		* This is equivalent to calling {@link #play(Animator)} with the first animator in the
		@@ -177,6 +177,7 @@ public final class AnimatorSet extends Animator {
		if (items.length == 1) {
		play(items[0]);
		} else {
		mReversible = false;
		for (int i = 0; i < items.length - 1; ++i) {
		play(items[i]).before(items[i+1]);
		}
		@@ -196,6 +197,7 @@ public final class AnimatorSet extends Animator {
		if (items.size() == 1) {
		play(items.get(0));
		} else {
		mReversible = false;
		for (int i = 0; i < items.size() - 1; ++i) {
		play(items.get(i)).before(items.get(i+1));
		}
		@@ -407,6 +409,9 @@ public final class AnimatorSet extends Animator {
		*/
		@Override
		public void setStartDelay(long startDelay) {
		if (mStartDelay > 0) {
		mReversible = false;
		}
		mStartDelay = startDelay;
		}

		@@ -626,6 +631,7 @@ public final class AnimatorSet extends Animator {
		anim.mNodeMap = new HashMap<Animator, Node>();
		anim.mNodes = new ArrayList<Node>();
		anim.mSortedNodes = new ArrayList<Node>();
		anim.mReversible = mReversible;

		// Walk through the old nodes list, cloning each node and adding it to the new nodemap.
		// One problem is that the old node dependencies point to nodes in the old AnimatorSet.
		@@ -907,6 +913,35 @@ public final class AnimatorSet extends Animator {
		}
		}

		/**
		* @hide
		*/
		@Override
		public boolean canReverse() {
		if (!mReversible) {
		return false;
		}
		// Loop to make sure all the Nodes can reverse.
		for (Node node : mNodes) {
		if (!node.animation.canReverse() \|\| node.animation.getStartDelay() > 0) {
		return false;
		}
		}
		return true;
		}

		/**
		* @hide
		*/
		@Override
		public void reverse() {
		if (canReverse()) {
		for (Node node : mNodes) {
		node.animation.reverse();
		}
		}
		}

		/**
		* Dependency holds information about the node that some other node is
		* dependent upon and the nature of that dependency.
		@@ -1124,6 +1159,7 @@ public final class AnimatorSet extends Animator {
		* {@link AnimatorSet#play(Animator)} method ends.
		*/
		public Builder before(Animator anim) {
		mReversible = false;
		Node node = mNodeMap.get(anim);
		if (node == null) {
		node = new Node(anim);
		@@ -1144,6 +1180,7 @@ public final class AnimatorSet extends Animator {
		* {@link AnimatorSet#play(Animator)} method to play.
		*/
		public Builder after(Animator anim) {
		mReversible = false;
		Node node = mNodeMap.get(anim);
		if (node == null) {
		node = new Node(anim);

core/java/android/animation/ValueAnimator.java

+9 −0

Original line number	Diff line number	Diff line
		@@ -1038,6 +1038,7 @@ public class ValueAnimator extends Animator {
		* play backwards. This behavior is only set for the current animation; future playing
		* of the animation will use the default behavior of playing forward.
		*/
		@Override
		public void reverse() {
		mPlayingBackwards = !mPlayingBackwards;
		if (mPlayingState == RUNNING) {
		@@ -1052,6 +1053,14 @@ public class ValueAnimator extends Animator {
		}
		}

		/**
		* @hide
		*/
		@Override
		public boolean canReverse() {
		return true;
		}

		/**
		* Called internally to end an animation by removing it from the animations list. Must be
		* called on the UI thread.

graphics/java/android/graphics/drawable/AnimatedStateListDrawable.java

+10 −3

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@ import android.content.res.Resources;
		import android.content.res.Resources.Theme;
		import android.content.res.TypedArray;
		import android.util.AttributeSet;
		import android.util.Log;
		import android.util.LongSparseLongArray;
		import android.util.SparseIntArray;
		import android.util.StateSet;
		@@ -62,6 +63,8 @@ import java.io.IOException;
		* @attr ref android.R.styleable#DrawableStates_state_pressed
		*/
		public class AnimatedStateListDrawable extends StateListDrawable {
		private static final String LOGTAG = AnimatedStateListDrawable.class.getSimpleName();

		private static final String ELEMENT_TRANSITION = "transition";
		private static final String ELEMENT_ITEM = "item";

		@@ -302,13 +305,13 @@ public class AnimatedStateListDrawable extends StateListDrawable {

		@Override
		public boolean canReverse() {
		return true;
		return mAvd.canReverse();
		}

		@Override
		public void start() {
		if (mReversed) {
		mAvd.reverse();
		reverse();
		} else {
		mAvd.start();
		}
		@@ -316,7 +319,11 @@ public class AnimatedStateListDrawable extends StateListDrawable {

		@Override
		public void reverse() {
		if (canReverse()) {
		mAvd.reverse();
		} else {
		Log.w(LOGTAG, "Reverse() is called on a drawable can't reverse");
		}
		}

		@Override

graphics/java/android/graphics/drawable/AnimatedVectorDrawable.java

+21 −3

Original line number	Diff line number	Diff line
		@@ -337,15 +337,33 @@ public class AnimatedVectorDrawable extends Drawable implements Animatable {
		* Reverses ongoing animations or starts pending animations in reverse.
		* <p>
		* NOTE: Only works of all animations are ValueAnimators.
		* @hide
		*/
		void reverse() {
		public void reverse() {
		final ArrayList<Animator> animators = mAnimatedVectorState.mAnimators;
		final int size = animators.size();
		for (int i = 0; i < size; i++) {
		final Animator animator = animators.get(i);
		if (animator instanceof ValueAnimator) {
		((ValueAnimator) animator).reverse();
		if (animator.canReverse()) {
		animator.reverse();
		} else {
		Log.w(LOGTAG, "AnimatedVectorDrawable can't reverse()");
		}
		}
		}

		/**
		* @hide
		*/
		public boolean canReverse() {
		final ArrayList<Animator> animators = mAnimatedVectorState.mAnimators;
		final int size = animators.size();
		for (int i = 0; i < size; i++) {
		final Animator animator = animators.get(i);
		if (!animator.canReverse()) {
		return false;
		}
		}
		return true;
		}
		}