自动在listview / scrollview中播放视频，类似于facebook

Question

如果视图包含视频，我需要在listview / scrollview中自动播放视频。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，并且如果仍然滚动则自动停止该视频。它应该像一个视频应该一次播放一样工作。

有人可以帮我吗？

我经历过的消息来源：

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

请按照要点

1. 首先，您需要在RecyclerView
中添加滚动侦听器

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. 从适配器更新updateRow()方法的当前可见视图。

工作完成：）