MenuPopup.java 文件源码

@Override
protected Animation initShowAnimation() {
    AnimationSet set = new AnimationSet(true);
    set.setInterpolator(new DecelerateInterpolator());
    set.addAnimation(getScaleAnimation(0, 1, 0, 1, Animation.RELATIVE_TO_SELF, 1, Animation.RELATIVE_TO_SELF, 0));
    set.addAnimation(getDefaultAlphaAnimation());
    return set;
    //return null;
}