Question

我想在视频中播放视频文件，该文件显示在对话框中，完成后应关闭对话框。我读到了通过媒体控制器进行的操作，所以我有以下内容：

final Dialog dialog = new Dialog(MyActivity.this);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(R.layout.MyCustomLayoutWithVideoView);
    dialog.show();
    WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
    WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.WRAP_CONTENT);
    lp.copyFrom(dialog.getWindow().getAttributes());
    dialog.getWindow().setAttributes(lp);
    final VideoView videoview = (VideoView) dialog.findViewById(R.id.videoView);
    Uri uri = Uri.parse(SoundFile);

    **MediaController mc = new MediaController(this);
    videoview.setMediaController(mc);**

        videoview.start();

    videoview.setVideoURI(uri);
    videoview.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {

        @Override
        public void onCompletion(MediaPlayer mp) 
{
Toast.makeText(getApplicationContext(), "Msg", Toast.LENGTH_LONG).show();
        }
    });

1）声明mediacontroller的部分是错误的......它无法获得上下文，上下文是什么？

2）如何根据最大高度和重量控制此对话框的大小？

Answer 1

您必须使用getApplicationContext（）来获取上下文。 Context表示环境数据。看看这里：What is Context in Android?

Android中的对话框中的VideoView完成侦听器

1 个答案: