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Merge "Reduce redundant animation processing"

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This commit is contained in:
Chet Haase
2012-03-16 18:03:21 -07:00
committed by Android (Google) Code Review
parent 2f14aa169f c6ffab3241
commit d3c326e653
1 changed files with 13 additions and 11 deletions
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24
core/java/android/animation/ValueAnimator.java
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@@ -557,12 +557,22 @@ public class ValueAnimator extends Animator {
public void handleMessage(Message msg) {
switch (msg.what) {
case ANIMATION_START:
doAnimationStart();
// If there are already active animations, or if another ANIMATION_START
// message was processed during this frame, then the pending list may already
// have been cleared. If that's the case, we've already processed the
// active animations for this frame - don't do it again.
if (mPendingAnimations.size() > 0) {
doAnimationFrame();
}
break;
}
}
private void doAnimationStart() {
private void doAnimationFrame() {
// currentTime holds the common time for all animations processed
// during this frame
long currentTime = AnimationUtils.currentAnimationTimeMillis();
// mPendingAnimations holds any animations that have requested to be started
// We're going to clear mPendingAnimations, but starting animation may
// cause more to be added to the pending list (for example, if one animation
@@ -583,15 +593,7 @@ public class ValueAnimator extends Animator {
}
}
}
doAnimationFrame();
}
private void doAnimationFrame() {
// currentTime holds the common time for all animations processed
// during this frame
long currentTime = AnimationUtils.currentAnimationTimeMillis();
// First, process animations currently sitting on the delayed queue, adding
// Next, process animations currently sitting on the delayed queue, adding
// them to the active animations if they are ready
int numDelayedAnims = mDelayedAnims.size();
for (int i = 0; i < numDelayedAnims; ++i) {