Android有个贪吃蛇的游戏，但是打开这个游戏非常枯燥，给加个背景音乐吧
1、增加一个类，这个类是继承Service的，如下。
package com.example.android.snake;
import android.app.Service; import android.content.Intent;
import android.media.MediaPlayer; import android.os.IBinder;
public class MusicServer extends Service {
private MediaPlayer mediaPlayer;
@Override
public IBinder onBind(Intent intent) { // TODO Auto-generated method stub return null; }
@Override
public void onStart(Intent intent,int startId){ super.onStart(intent, startId);
if(mediaPlayer==null){
// R.raw.mmp是资源文件，MP3格式的
mediaPlayer = MediaPlayer.create(this, R.raw.mmp); mediaPlayer.setLooping(true); mediaPlayer.start(); } }
@Override
public void onDestroy() {
// TODO Auto-generated method stub super.onDestroy(); mediaPlayer.stop(); }
}
2、在AndroidManifest.xml中添加如下代码。
3、在Snake.java加入以下代码（红色为新加的)
package com.example.android.snake;
import android.app.Activity; import android.os.Bundle; import android.view.Window; import android.widget.TextView; import android.content.Intent;
public class Snake extends Activity {
private SnakeView mSnakeView;
private Intent intent = new Intent(\
private static String ICICLE_KEY = \ /**
* Called when Activity is first created. Turns off the title bar, sets up * the content views, and fires up the SnakeView. * */
@Override
public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.snake_layout);
//start background music startService(intent);
mSnakeView = (SnakeView) findViewById(R.id.snake);
mSnakeView.setTextView((TextView) findViewById(R.id.text));
if (savedInstanceState == null) {
// We were just launched -- set up a new game mSnakeView.setMode(SnakeView.READY); } else {
// We are being restored
Bundle map = savedInstanceState.getBundle(ICICLE_KEY); if (map != null) {
mSnakeView.restoreState(map); } else {
mSnakeView.setMode(SnakeView.PAUSE); } } }
@Override
protected void onPause() { super.onPause();
// Pause the game along with the activity mSnakeView.setMode(SnakeView.PAUSE);
stopService(intent); }
@Override
public void onSaveInstanceState(Bundle outState) { //Store the game state
outState.putBundle(ICICLE_KEY, mSnakeView.saveState()); } }
这样运行游戏时候就能听到背景音乐了