贝塞尔曲线

 */

private AnimatorSet getAnimatorSet(ImageView loveIv) {

// 1.alpha动画

ObjectAnimator alpha = ObjectAnimator

.ofFloat(loveIv, "alpha", 0.3f, 1f);

// 2.缩放动画

ObjectAnimator scaleX = ObjectAnimator.ofFloat(loveIv, "scaleX", 0.2f,

1f);

ObjectAnimator scaleY = ObjectAnimator.ofFloat(loveIv, "scaleY", 0.2f,

1f);

// 刚刚进入动画集合

AnimatorSet enter = new AnimatorSet();

enter.setDuration(500);

enter.playTogether(alpha, scaleX, scaleY);

enter.setTarget(loveIv);

原文链接：http://www.apkbus.com/blog-880881-63361.html