如何在android的viewpager中停止视频

public class CustomPagerAdapter extends PagerAdapter implements ViewPager.OnPageChangeListener {
    private List<View> views;
    private List<MediaPlayer> mediaPlayers;

    public CustomPagerAdapter(List<View> views) {
        this.views = views;
        this.mediaPlayers = new ArrayList<>();
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        View view = views.get(position);
        container.addView(view);

        // 初始化视频播放器并添加到列表中
        MediaPlayer mediaPlayer = view.findViewById(R.id.video_player);
        mediaPlayers.add(mediaPlayer);

        return view;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        View view = (View) object;
        container.removeView(view);

        // 释放视频播放器资源
        MediaPlayer mediaPlayer = mediaPlayers.get(position);
        mediaPlayer.stop();
        mediaPlayer.release();
        mediaPlayers.remove(position);
    }

    @Override
    public void onPageSelected(int position) {
        // 停止当前页面的视频播放
        MediaPlayer mediaPlayer = mediaPlayers.get(position);
        mediaPlayer.stop();
    }

    // 其他PagerAdapter的实现方法...

    @Override
    public void onPageScrollStateChanged(int state) {
        // 不需要实现
    }

    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
        // 不需要实现
    }
}