旋转动画

    private RotateAnimation rotateAnimation;
    ImageView imageView = mView.findViewById(R.id.icon);//获取控件imageView
    rotateAnimation = new RotateAnimation(0f, 360f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
    rotateAnimation.setInterpolator(new LinearInterpolator());
    rotateAnimation.setDuration(500);//设置动画持续周期
    rotateAnimation.setRepeatCount(Integer.MAX_VALUE);//设置重复次数
    rotateAnimation.setFillAfter(false);//动画执行完后是否停留在执行完的状态
    imageView.startAnimation(rotateAnimation);//开始动画
  //结束动画
    if (rotateAnimation != null) {
        rotateAnimation.cancel();
        rotateAnimation = null;
    }