在列表视图中播放视频

Question

几个小时以来，我一直在寻找解决方案。我为listview 创建了一个自定义baseAdapter。它适用于图像。在imageView 工作后，我认为VideoView 也可以。然后，我看到我必须使用TextureViev 代替它，对其进行了处理，它的逻辑很清楚，但最后，我遇到了一些错误，但在网络上没有解决方案。

我尝试使用Glide，但没有成功，我又回到了这里。

在准备媒体播放器时，我遇到了这些错误；

E/ExtMediaPlayer-JNI: env->IsInstanceOf 失败

E/MediaPlayer-JNI: JNIMediaPlayerFactory: bIsQCMediaPlayerPresent 0

当媒体准备好时；

W/MediaPlayer：信息/警告 (3, 0)

尝试启动时mediaplayer

[12-19 19:32:11.967 378:31124 E/] 不是avi模式

我需要每一个小小的灵感来继续前进，谢谢。

我在MainActivity 类的内部类中定义了baseAdapter，并实现了mediaplayer 和textureview 方法；

public  class postAdapter extends BaseAdapter implements TextureView.SurfaceTextureListener, MediaPlayer.OnBufferingUpdateListener, MediaPlayer.OnCompletionListener, MediaPlayer.OnPreparedListener, MediaPlayer.OnVideoSizeChangedListener {
     ArrayList<Posts> posts;
     public postAdapter(ArrayList<Posts> postsToList)
     {
         posts=postsToList;
     }
     MediaPlayer mMediaPlayer;
     TextureView textureView;
     VideoView animatedView;

     @Override
     public int getCount() {
        // Log.d(TAG, "getCount: "+posts.size());
         return posts.size();

     }

     public void addRangeToTop(ArrayList<Posts> newposts)
     {
        for (int i=0;i<newposts.size();i++)
        {
            posts.add(i,newposts.get(i));
        }
     }
     @Override
     public Object getItem(int position) {

         return null;
     }

     @Override
     public long getItemId(int position) {
         return position;
     }

     @Override
     public View getView(int position, View convertView, ViewGroup parent) {

         View child = getLayoutInflater().inflate(R.layout.animatedpost, null);
         TextView titleView = (TextView) child.findViewById(R.id.titleView);
          ImageView imageView = (ImageView) child.findViewById(R.id.capsView);
       animatedView=(VideoView) child.findViewById(R.id.animatedView);
       textureView=(TextureView)child.findViewById(R.id.textureView);
         TextView voteView = (TextView) child.findViewById(R.id.voteView);
        Button button=(Button) child.findViewById(R.id.button2);



        textureView.setSurfaceTextureListener(this);














         button.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {


          /* ArrayList<Posts> newp=new ArrayList<Posts>();
                 for (int i=10;i<15;i++)
                 {
                     Posts post=new Posts();
                     post.setPostTitle(i+"dsf");
                     post.setPostVote(i+"sdfsd");
                     newp.add(post);

                 }
                 int index = lv.getFirstVisiblePosition()+newp.size() ;
                 View v2 = lv.getChildAt(0);
                 int top = (v2 == null) ? 0 : v2.getTop();
                 addRangeToTop(newp);
                 notifyDataSetChanged();
                lv.setSelectionFromTop(index, top);*/
                /* Uri uri = Uri.parse("http://somepath"); // missing 'http://' will cause crashed
                 Intent intent = new Intent(Intent.ACTION_VIEW, uri);
                 startActivity(intent);*/

             }
         });
         titleView.setText(posts.get(position).getPostTitle());
         voteView.setText(posts.get(position).getPostVote());
        // imageView.setImageResource(R.drawable.df);



         return child;
     }


     @Override
     public void onBufferingUpdate(MediaPlayer mp, int percent) {

     }

     @Override
     public void onCompletion(MediaPlayer mp) {

     }

     @Override
     public void onPrepared(MediaPlayer mp) {

         Log.d(TAG, "onPrepared: ");

            mp.start();

     }

     @Override
     public void onVideoSizeChanged(MediaPlayer mp, int width, int height) {

     }

     @Override
     public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
         mMediaPlayer=new MediaPlayer();
         Surface s = new Surface(surface);


         try {

             mMediaPlayer.setDataSource("http://somefunnyvideopath.mp4");
             mMediaPlayer.setSurface(s);


             mMediaPlayer.setOnBufferingUpdateListener(this);
             mMediaPlayer.setOnCompletionListener(this);
             mMediaPlayer.setOnPreparedListener(this);
             mMediaPlayer. setOnVideoSizeChangedListener( this);



             mMediaPlayer.prepareAsync();

         } catch (IOException e) {
             e.printStackTrace();
         }
     }

     @Override
     public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {

     }

     @Override
     public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
         return false;
     }

     @Override
     public void onSurfaceTextureUpdated(SurfaceTexture surface) {

     }
 }

Answer 1

我会让 mediaplayer 成为一个单例类，所以你不必多次实例化他，不确定这是你的问题，但它更好

public class MyMediaPlayer {
    MediaPlayer mp;
    private static volatile MyMediaPlayer instance = null;
    private MyMediaPlayer() { }
    public static MyMediaPlayer getInstance() {
        if (instance == null) {
            synchronized (MyMediaPlayer.class) {
                if (instance == null) {
                    instance = new MyMediaPlayer();}}}
        return instance;
    }}

还可以尝试使用原始资源或您的画廊中的 mp4，以便您知道您的设备可以播放它，然后当它工作时尝试更改您的链接，

希望对你有帮助。