SuperSwipeRefreshLayout.java 文件源码

private void animateOffsetToStartPosition(int from,
                                          AnimationListener listener) {
    mFrom = from;
    mAnimateToStartPosition.reset();
    mAnimateToStartPosition.setDuration(ANIMATE_TO_START_DURATION);
    mAnimateToStartPosition.setInterpolator(mDecelerateInterpolator);
    if (listener != null) {
        mHeadViewContainer.setAnimationListener(listener);
    }
    mHeadViewContainer.clearAnimation();
    mHeadViewContainer.startAnimation(mAnimateToStartPosition);
    resetTargetLayoutDelay(ANIMATE_TO_START_DURATION);
}