我怎样才能知道在Android中滑动viewPager

在我的应用程序中，我有viewPager，进入这viewPager我显示视频，我将此视频设置为ViewPagerAdaper。
我想要在右侧向左滑动时停止视频！
我怎样才能知道在Android中滑动viewPager

我下面写代码在adapter作秀视频：

@Override 
public Object instantiateItem(ViewGroup container, final int position) { 
    View view = this.inflater.inflate(R.layout.row_coming_soon, container, false); 
    ButterKnife.bind(this, view); 
    final ImageView comingSoonCover = (ImageView) view.findViewById(R.id.row_comingSoonCoverImg); 
    final ImageView comingSoonPlayBtn = (ImageView) view.findViewById(R.id.row_comingSoonPlayBtn); 
    final VideoView comingSoonVideoPlayer = (VideoView) view.findViewById(R.id.row_comingSoon_videoPlayer); 
    final RelativeLayout comingSoonImagesLay = (RelativeLayout) view.findViewById(R.id.row_comingSoonImagesLay); 

    comingSoonPlayBtn.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      comingSoonVideoPlayer.setVideoURI(Uri.parse(model.get(position).getTrailerDirectLink())); 
      comingSoonVideoPlayer.start(); 
      comingSoonImagesLay.setVisibility(View.GONE); 
     } 
    });

我要当刷卡viewPager，如果comingSoonVideoPlayer.isPlaying();，停止它和轻扫viewPager。

我该怎么办？

来源

2017-06-01 Jan Deep

你可以尝试创建适配器站和星的方法，例如

private void start(int position) { 
    if(comingSoonVideoPlayer != null { 
     comingSoonVideoPlayer.setVideoURI(Uri.parse(model.get(position).getTrailerDirectLink())); 
     comingSoonVideoPlayer.start(); 
    } 
} 

private void stop() { 
    if(comingSoonVideoPlayer != null) { 
     comingSoonVideoPlayer.stop(); 
    } 
}

然后在片段

mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() { 
     @Override 
     public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { 
      mViewPager.getAdapter().stop(); 
      mViewPager.getAdapter().start(position);     
     } 

     @Override 
     public void onPageSelected(int position) { 
     } 

     @Override 
     public void onPageScrollStateChanged(int state) { 

     } 
});

编辑：

让comingSoonVideoPlayer为班级字段：

final VideoView comingSoonVideoPlayer; 


    @Override 
    public Object instantiateItem(ViewGroup container, final int position) { 
     View view = this.inflater.inflate(R.layout.row_coming_soon, container, false); 
     ButterKnife.bind(this, view); 
     final ImageView comingSoonCover = (ImageView) view.findViewById(R.id.row_comingSoonCoverImg); 
     final ImageView comingSoonPlayBtn = (ImageView) view.findViewById(R.id.row_comingSoonPlayBtn); 
     comingSoonVideoPlayer = (VideoView) view.findViewById(R.id.row_comingSoon_videoPlayer); 
     final RelativeLayout comingSoonImagesLay = (RelativeLayout) view.findViewById(R.id.row_comingSoonImagesLay); 

     comingSoonPlayBtn.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       comingSoonVideoPlayer.setVideoURI(Uri.parse(model.get(position).getTrailerDirectLink())); 
       comingSoonVideoPlayer.start(); 
       comingSoonImagesLay.setVisibility(View.GONE); 
      } 
     }); 
    }

希望这会有所帮助。

对不起，我的英语。

来源

2017-06-01 14:57:12 Cochi

谢谢我的朋友，我想尝试你的代码，但我不能！因为我应该将** VideoView **初始化为'instantiateItem'，比如：'VideoView'comingSoonVideoPlayer =（VideoView）view.findViewById（R.id.coming_pay_videoPlayer）;'。当初始化** VideoView **全球使用其他方面，不工作我videoView到我的应用程序！我该如何解决它？为了使用您的代码，我应该初始化** VideoView **全局，但我无法在全局初始化这个！为什么？ –

请在邮编＃1中查看我的代码以了解我的意思。请帮助我的朋友，请 –

当您尝试将'comingSoonVideoPlayer'作为班级字段时，出现什么错误？ – Cochi

我觉得这个听众可以HALP你

mViewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() { 
     @Override 
     public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { 

     } 

     @Override 
     public void onPageSelected(int position) { 

     } 

     @Override 
     public void onPageScrollStateChanged(int state) { 

     } 
    });

现在它已过时。必须使用替代addOnPageChangeListener/removeOnPageChangeListener

来源

2017-06-01 14:33:24

我应该把你的代码写入我的片段，但我把视频控制到适配器中！我怎么能把它放入你的代码？你能帮我，给我发代码吗？请 –

Somethins like this onPageSelected {mAdapter.stopOtherPages（position）;} –

找不到'stopOtherPages'。请给我这个代码。我想当ssipe viewPager，停止视频 –

我怎样才能知道在Android中滑动viewPager

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