ArcMenu.java 文件源码

private static Animation createItemDisapperAnimation(final long duration, final boolean isClicked) {
    AnimationSet animationSet = new AnimationSet(true);
    animationSet.addAnimation(new ScaleAnimation(1.0f, isClicked ? 2.0f : 0.0f, 1.0f, isClicked ? 2.0f : 0.0f,
            Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f));
    animationSet.addAnimation(new AlphaAnimation(1.0f, 0.0f));

    animationSet.setDuration(duration);
    animationSet.setInterpolator(new DecelerateInterpolator());
    animationSet.setFillAfter(true);

    return animationSet;
}