播放网络上的视频

package cn.itcast.playonline;

import java.io.IOException;

import android.app.Activity;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnPreparedListener;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.widget.EditText;

public class PlayonlineActivity extends Activity {
	EditText et_path;
	SurfaceView sv;
	SurfaceHolder holder;
	MediaPlayer player;
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        et_path = (EditText) this.findViewById(R.id.editText1);
        sv = (SurfaceView) this.findViewById(R.id.sv);
        holder =  sv.getHolder();
		/* 下面设置Surface不维护自己的缓冲区，而是等待屏幕的渲染引擎将内容推送到用户面前 */
		holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
    }
    
    
    public void play(View view){
      	try {
		//path 在线路径
		//android框架可以播放流媒体格式 3gp   rtsp格式
    	String path = et_path.getText().toString().trim();
    	player = new MediaPlayer();
  
			player.setDataSource(path);
			player.setAudioStreamType(AudioManager.STREAM_MUSIC);
			player.setDisplay(holder);
			player.prepareAsync();
			player.setOnPreparedListener(new OnPreparedListener() {
				
				public void onPrepared(MediaPlayer mp) {
					player.start();
					
				}
			});
			
			
		} catch (Exception e) {
			System.out.println("error ");
			e.printStackTrace();
		}
    }
}