private long[] getCurrentPlayTimeByState(State mState) {
long[] tab = new long[3];
switch (mState) {
case ANIMATING_LINE_TO_DOT:
for (int i = 0; i < mArrowToLineAnimatorSet.getChildAnimations().size(); i++) {
tab[i] =
((ValueAnimator) mArrowToLineAnimatorSet.getChildAnimations().get(i))
.getCurrentPlayTime();
}
mArrowToLineAnimatorSet.cancel();
break;
case ANIMATING_PROGRESS:
for (int i = 0; i < mProgressAnimationSet.getChildAnimations().size(); i++) {
tab[i] =
((ValueAnimator) mProgressAnimationSet.getChildAnimations().get(i))
.getCurrentPlayTime();
}
mProgressAnimationSet.cancel();
break;
case ANIMATING_ERROR:
tab[0] = mErrorAnimation.getCurrentPlayTime();
mErrorAnimation.cancel();
break;
case ANIMATING_SUCCESS:
tab[0] = mSuccessAnimation.getCurrentPlayTime();
mSuccessAnimation.cancel();
break;
}
return tab;
}
static float getAnimatedFraction(ValueAnimator animator) {
float fraction =
animator.getDuration() > 0
? ((float) animator.getCurrentPlayTime()) / animator.getDuration()
: 0f;
fraction = min(fraction, 1f);
fraction = animator.getInterpolator().getInterpolation(fraction);
return fraction;
}
public void onAnimationUpdate(final ValueAnimator animation) {
final long currentTime = System.currentTimeMillis();
if (mStartTime == -1) {
mStartFrame = sGlobalFrameCounter;
mStartTime = currentTime;
}
final long currentPlayTime = animation.getCurrentPlayTime();
boolean isFinalFrame = Float.compare(1f, animation.getAnimatedFraction()) == 0;
if (!mHandlingOnAnimationUpdate
&& sVisible
&&
// If the current play time exceeds the duration, or the animated fraction is 1,
// the animation will get finished, even if we call setCurrentPlayTime -- therefore
// don't adjust the animation in that case
currentPlayTime < animation.getDuration()
&& !isFinalFrame) {
mHandlingOnAnimationUpdate = true;
long frameNum = sGlobalFrameCounter - mStartFrame;
// If we haven't drawn our first frame, reset the time to t = 0
// (give up after MAX_DELAY ms of waiting though - might happen, for example, if we
// are no longer in the foreground and no frames are being rendered ever)
if (frameNum == 0 && currentTime < mStartTime + MAX_DELAY && currentPlayTime > 0) {
// The first frame on animations doesn't always trigger an invalidate...
// force an invalidate here to make sure the animation continues to advance
mTarget.getRootView().invalidate();
animation.setCurrentPlayTime(0);
// For the second frame, if the first frame took more than 16ms,
// adjust the start time and pretend it took only 16ms anyway. This
// prevents a large jump in the animation due to an expensive first frame
} else if (frameNum == 1
&& currentTime < mStartTime + MAX_DELAY
&& !mAdjustedSecondFrameTime
&& currentTime > mStartTime + IDEAL_FRAME_DURATION
&& currentPlayTime > IDEAL_FRAME_DURATION) {
animation.setCurrentPlayTime(IDEAL_FRAME_DURATION);
mAdjustedSecondFrameTime = true;
} else {
if (frameNum > 1) {
mTarget.post(
new Runnable() {
public void run() {
animation.removeUpdateListener(FirstFrameAnimatorHelper.this);
}
});
}
if (DEBUG) print(animation);
}
mHandlingOnAnimationUpdate = false;
} else {
if (DEBUG) print(animation);
}
}
public void print(ValueAnimator animation) {
float flatFraction = animation.getCurrentPlayTime() / (float) animation.getDuration();
Log.d(
"FirstFrameAnimatorHelper",
sGlobalFrameCounter
+ "("
+ (sGlobalFrameCounter - mStartFrame)
+ ") "
+ mTarget
+ " dirty? "
+ mTarget.isDirty()
+ " "
+ flatFraction
+ " "
+ this
+ " "
+ animation);
}
private void animate(int direction) {
final long currentPlayTime = mAnimator.getCurrentPlayTime();
final float toValue = (direction == IN) ? mOriginalToValue : mOriginalFromValue;
final float startValue =
mFirstRun ? mOriginalFromValue : ((Float) mAnimator.getAnimatedValue()).floatValue();
// Make sure it's stopped before we modify any values
cancel();
mDirection = direction;
// Ensure we don't calculate a non-sensical duration
long duration = mOriginalDuration - currentPlayTime;
mAnimator.setDuration(Math.max(0, Math.min(duration, mOriginalDuration)));
mAnimator.setFloatValues(startValue, toValue);
mAnimator.start();
mFirstRun = false;
}
private void animate(int direction) {
final long currentPlayTime = mAnimator.getCurrentPlayTime();
final float toValue = (direction == IN) ? mOriginalToValue : mOriginalFromValue;
final float startValue =
mFirstRun ? mOriginalFromValue : ((Float) mAnimator.getAnimatedValue()).floatValue();
// Make sure it's stopped before we modify any values
cancel();
// TODO: We don't really need to do the animation if startValue == toValue, but
// somehow that doesn't seem to work, possibly a quirk of the animation framework
mDirection = direction;
// Ensure we don't calculate a non-sensical duration
long duration = mOriginalDuration - currentPlayTime;
mAnimator.setDuration(Math.max(0, Math.min(duration, mOriginalDuration)));
mAnimator.setFloatValues(startValue, toValue);
mAnimator.start();
mFirstRun = false;
}