当实时流不可用时，如何显示警报消息

Question

我已经开发了实时流应用程序我想显示错误或警报消息。我该怎么办？

这是我的创建功能：

@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);        
        if(getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE){           
            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        }
        setContentView(R.layout.activity_shada);
        videoView = (VideoView) findViewById(R.id.myVideoView);                
        videoView.setVideoURI(Uri.parse(httpLiveUrl));       
        videoView.requestFocus();
        videoView.start();
        pro = ProgressDialog.show(this, "", "Loading....");
        videoView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mp) {
                // TODO Auto-generated method stub
                pro.dismiss();                  
            }
        });               
    }

Answer 1

setOnerrorlistener呢？