android属性动画

//透明度
ObjectAnimator alpha = ObjectAnimator.ofFloat(
img,
"alpha", 0, 1
);
alpha.setDuration(3000);
alpha.start();
//旋转
ObjectAnimator rotation = ObjectAnimator.ofFloat(
img, "rotation", 10, 360
);
rotation.setDuration(3000);
rotation.start();
//平移
ObjectAnimator translationX = ObjectAnimator.ofFloat(
img, "translationX", 0, 50
);
translationX.setDuration(3000);

translationX.setRepeatCount(3);
translationX.start();

//缩放
ObjectAnimator scaleX = ObjectAnimator.ofFloat(
img, "scaleX", 0, 1
);
scaleX.setDuration(3000);
scaleX.start();

 // 动画自定义差值器
// 先加速后减速
animatr.setInterpolator(new AccelerateDecelerateInterpolator());
// 加速
animatr.setInterpolator(new AccelerateInterpolator());
// 减速
animatr.setInterpolator(new DecelerateInterpolator());
// 匀速
animatr.setInterpolator(new LinearInterpolator());