android mediaplayer播放sdcard音乐,MediaPlayer播放音乐

[android]代码库package com.example.day_12_media_demo;

import java.io.IOException;

import android.media.MediaPlayer;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.view.View;

public class MainActivity extends Activity {

private MediaPlayer player2;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

player2 = new MediaPlayer();

try {

player2.setDataSource("mnt/sdcard/bbb.mp3");

}catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public void but(View v) {

try {

player2.prepare();

} catch (IllegalStateException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

player2.start();

}

}