public void start() {
if (mStarted) return;
checkState();
mRunCount = 0;
mStarted = true;
mStartTime = AnimationUtils.currentAnimationTimeMillis();
Compat.postOnAnimation(mView, this);
}
@Override
public final void run() {
if (!mStarted) return;
final long timeElapsed = AnimationUtils.currentAnimationTimeMillis() - mStartTime;
mAnimationValue = mInterpolator.getInterpolation(timeElapsed / (float) mDuration);
onAnimationUpdate();
if (timeElapsed < mDuration) {
Compat.postOnAnimation(mView, this);
} else {
if (++mRunCount < mRepeatCount || mRepeatCount == INFINITE) {
restart();
}
}
}
private void restart() {
mStartTime = AnimationUtils.currentAnimationTimeMillis();
Compat.postOnAnimation(mView, this);
}