引用
If this BroadcastReceiver was launched through a <receiver> tag, then the object is no longer alive after returning from this function. This means you should not perform any operations that return a result to you asynchronously -- in particular, for interacting with services, you should use startService(Intent) instead of bindService(Intent, ServiceConnection, int). If you wish to interact with a service that is already running, you can use peekService(Context, Intent).
peekService
引用
Provide a binder to an already-running service. This method is synchronous and will not start the target service if it is not present, so it is safe to call from onReceive(Context, Intent).
在实际操作中，通过peekservice并不能获得已经通过startservice开启的service对象。但是可以采用ServiceManger的addservice方法来注册service，并通过getservice获得该service，注意，getservice之前该service并不会启动。由serviceManager进行管理