Android实现Service在前台运行服务

public class MyService extends Service { public static final String TAG = "MyService"; @Override public void onCreate() {  super.onCreate();  Notification notification = new Notification(R.drawable.ic_launcher,    "有通知到来", System.currentTimeMillis());  Intent notificationIntent = new Intent(this, MainActivity.class);  PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,    notificationIntent, 0);  notification.setLatestEventInfo(this, "幻听", "许嵩",    pendingIntent);  startForeground(1, notification); } @Override public int onStartCommand(Intent intent, int flags, int startId) {  return super.onStartCommand(intent, flags, startId); } @Override public void onDestroy() {  super.onDestroy(); } @Override public IBinder onBind(Intent intent) {  return null; }}