SuperSwipeRefreshLayout.java 文件源码

private void startScaleUpAnimation(AnimationListener listener) {
    mScaleAnimation = new Animation() {
        @Override
        public void applyTransformation(float interpolatedTime,
                                        Transformation t) {
            setAnimationProgress(interpolatedTime);
        }
    };
    mScaleAnimation.setDuration(mMediumAnimationDuration);
    if (listener != null) {
        mHeadViewContainer.setAnimationListener(listener);
    }
    mHeadViewContainer.clearAnimation();
    mHeadViewContainer.startAnimation(mScaleAnimation);
}