动画

旋转

                ObjectAnimator anim;

                anim = ObjectAnimator.ofFloat(imageView, "rotation", 0, 360);
                anim.setDuration(5000);
                anim.setRepeatCount(Animation.INFINITE);//无限循环
               // anim.setRepeatCount(5);
                LinearInterpolator lir = new LinearInterpolator();
                anim.setInterpolator(lir);//设置匀速旋转
                anim.setRepeatMode(ObjectAnimator.RESTART);
                anim.start();
//                anim.pause();
//                anim.resume();