LingjuSwipeUpLoadRefreshLayout.java 文件源码

private void startScaleDownReturnToStartAnimation(final CircleImageView view, int from,
                                                  Animation.AnimationListener listener) {
    mFrom = from;
    if (isAlphaUsedForScale()) {
        mStartingScale = bProgress.getAlpha();
    } else {
        mStartingScale = ViewCompat.getScaleX(view);
    }
    mScaleDownToStartAnimation = new Animation() {
        @Override
        public void applyTransformation(float interpolatedTime, Transformation t) {
            float targetScale = (mStartingScale + (-mStartingScale * interpolatedTime));
            setAnimationProgress(view, targetScale);
            moveToStart(interpolatedTime);
        }
    };
    mScaleDownToStartAnimation.setDuration(SCALE_DOWN_DURATION);
    if (listener != null) {
        view.setAnimationListener(listener);
    }
    view.clearAnimation();
    view.startAnimation(mScaleDownToStartAnimation);
}