简单动画

        final ObjectAnimator objectAnimator = ObjectAnimator.ofFloat(imageView,"rotation",0,0);
        objectAnimator.setDuration(1000);
        imageView.setRotation(homeViewModel.rotation);
        imageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (!objectAnimator.isRunning()) {
                    objectAnimator.setFloatValues(imageView.getRotation(), imageView.getRotation() + 100);
                    homeViewModel.rotation += 100;
                    objectAnimator.start();
                }
            }
        });