private ObjectAnimator rotate;

ImageView bufferProgress;

int old_position = 0;

//初始化的时候就开启旋转动画

rotate = ObjectAnimator.ofFloat(bufferProgress, "rotation", 0f, 360f);

rotate.setRepeatCount(RotateAnimation.INFINITE);

rotate.setDuration(1000);

bufferProgress.setVisibility(View.VISIBLE);

rotate.start();

rotate.addListener(new Animator.AnimatorListener() {

    @Override

    public void onAnimationStart(Animator animation) {

    }

    @Override

    public void onAnimationEnd(Animator animation) {

    }

    @Override

    public void onAnimationCancel(Animator animation) {

        bufferProgress.setVisibility(View.GONE);

    }

    @Override

    public void onAnimationRepeat(Animator animation) {

    }

});

//视频播放准备好了就取消动画

videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {

    @Override

    public void onPrepared(MediaPlayer mp) {

        ...

        rotate.cancel();

    }

});

//因为播放进度条本来就有一个定时器，所以正好用这个来监听，通过判断现在和下一秒的播放进度是否相等来决定是否显示缓冲进度条

timer.schedule(new TimerTask() {

    @Override

    public void run() {

        mHandler.post(new Runnable() {

            @Override

            public void run() {

                int currentPosition = videoView.getCurrentPosition();

                if (old_position == currentPosition && videoView.isPlaying()) {

                    bufferProgress.setVisibility(VISIBLE);

                    rotate.start();

                } else {

                    bufferProgress.setVisibility(GONE);

                    rotate.cancel();

                }

                old_position = currentPosition;

                seekBar.setProgress(currentPosition);

                seekBar.setSecondaryProgress(videoView.getBufferPercentage());

                currentTime.setText(dateFormat.format(new Date(currentPosition)));

            }

        });

    }

}, 0, 1000);