android - 在类似 facebook 的 ListView / ScrollView 中自动播放视频

Question

如果 View 包含视频，我需要视频在 ListView / ScrollView 中自动播放。这与 facebook 非常相似。如果用户向下滚动并且可见区域包含系统将播放视频的视频，如果仍然滚动则它会自动停止该视频。它应该像一次播放一个视频一样工作。

有人可以帮我解决这个问题吗？

我浏览过的资源:

1. Play video in Android listview
2. How to automatically play video in listview on android app
3. How to automatically play video in listview on android app

谢谢..!!

Answer 1

请注意以下几点

1. 首先你需要在RecyclerView中添加一个滚动监听器

2. 然后通过监听器更新您的RecyclerView 适配器

   protected void onListViewUpdate(final int position, final Object object) {
       final RecyclerView view = mView;
       LinearLayoutManager layoutManager = ((LinearLayoutManager)view.getLayoutManager());
       final View convertView = layoutManager.findViewByPosition(position);
       int firstVisiblePosition = layoutManager.findFirstCompletelyVisibleItemPosition();
       int lastVisiblePosition = layoutManager.findLastCompletelyVisibleItemPosition();            
   
       if (firstVisiblePosition <= position && position <= lastVisiblePosition) {
           // this is the convertView that you previously returned in getView
           // just fix it (for example:)
   
           Thread thread = new Thread(){
               @Override
               public void run() {
                   super.run();
   
                   runOnUiThread(new Runnable() {
                       @Override
                       public void run() {
                           adapter.updateRow(adapter.getItem(position), convertView, object);
                       }
                   });
               }
           };
           thread.start();
       } else {
           // just update your data set, UI will be updated automatically in next
           // getView() call
           adapter.updateData(position, object);
       }
   }
   

3. 从适配器通过 updateRow() 方法更新当前可见 View 。

工作完成:)