ActiveServices

mPendingServices 启动等待队列

mRestartingServices 重启队列

realStartServiceLocked 进程已启动   app.thread.scheduleCreateService (onCreate)   requestServiceBindingsLocked (onBind)   sendServiceArgsLocked (onStartCommand)

bringDownServiceLocked   r.app.thread.scheduleUnbindService (onUnbind)   r.app.thread.scheduleStopService (onDestroy)

Service (bind基于intent)public abstract IBinder onBind(Intent intent);public boolean onUnbind(Intent intent);public void onRebind(Intent intent);