菜鸟初学Service

[J2EE程序员]

1. onStart() ,onStartCommand() instead.

As Follows :
-------------------------------------------------

onStart() 
public void onStart(Intent intent, int startId) {
    
}

--------------------------------------------------
onStartCommand:

    public int onStartCommand(Intent intent, int flags, int startId) {
        onStart(intent, startId); 
        return mStartCompatibility ? START_STICKY_COMPATIBILITY : START_STICKY;
    }

--------------------------------------------------
Google API

void 	onStart(Intent intent, int startId)
This method is deprecated. Implement onStartCommand(Intent, int, int) instead.
onStart方式已经过时,被onStartCommand取代 

int 	onStartCommand(Intent intent, int flags, int startId)
Called by the system every time a client explicitly starts the service by calling startService(Intent),
 providing the arguments it supplied and a unique integer token representing the start request.

-------------------------------------------------
那么为何还会在onStartCommand中 调用onStart()方法?

---------------------------------------------------
他的启动顺序是 onCreate() ---> onStartCommand() ---> onStart() ,说明他却是调用了onStart()
注释掉 onStartCommand()后, 依然可以启动Service啊 !! onCreate() ---> onStart()


观2.2源码中中 onStartCommand依然调用了onStart方法啊
既然都能正确的调用 那么onStart() 为何不推荐使用呢 ?

[manoel]

onStartCommand是新增加的方法。以前就是onStart。

[hvk687]

为了兼容