android 音乐播放service
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package com.czp;import java.io.File;import android.app.Service;import android.content.Intent;import android.content.SharedPreferences;import android.media.MediaPlayer;import android.media.MediaPlayer.OnCompletionListener;import android.media.MediaPlayer.OnErrorListener;import android.os.IBinder;public class MusicServer extends Service implements OnCompletionListener,OnErrorListener{private MediaPlayer mp; @Overridepublic void onStart(Intent intent, int startId) {if(!mp.isPlaying()){mp.start();}mp.setOnCompletionListener(this);mp.setOnErrorListener(this);super.onStart(intent, startId);}@Overridepublic void onCreate() {try {SharedPreferences sp = Util.getSharedPreferences(this);String userSettingMusicPath = sp.getString(Util.USER_MUSIC_PATH,""); if(!userSettingMusicPath.isEmpty()) { File f = new File(userSettingMusicPath); if(f.exists()) { mp = new MediaPlayer(); mp.setDataSource(userSettingMusicPath); } } if(mp==null) { mp = MediaPlayer.create(this, R.raw.defaultMusicId); }mp.prepare();} catch (Exception e) { processError(e);}super.onCreate();}@Overridepublic void onDestroy() {mp.stop();mp.release();mp = null;super.onDestroy();}@Overridepublic IBinder onBind(Intent intent) {return super.onBind(intent);}@Overridepublic void onCompletion(MediaPlayer mp) {}@Overridepublic boolean onError(MediaPlayer mp, int what, int extra) {mp.stop();mp.release();return false;}/** * 记录异常 * @param e */private void processError(Exception e) {}}package com.czp;import android.app.Service;import android.content.SharedPreferences;public class Util {private static final int MODE_WORLD_WRITEABLE = 0;private static final String SHAER_FILE = "userSetting";public static final String USER_MUSIC_PATH = "userMusicPath";public static final String USER_LAST_LOACTION="userLastLocation";public static SharedPreferences getSharedPreferences(Service server) {return server.getSharedPreferences(SHAER_FILE, MODE_WORLD_WRITEABLE);}}