问题是我将我所有的应用初始化代码都放在了applicationDidBecomeActive：消息中。用户决定允许使用位置服务后，将发送UIApplicationDidBecomeActiveNotification消息，从而导致调用applicationDidBecomeActive消息。

The problem is that I was putting all of my app initialization code in the applicationDidBecomeActive: message. After the user decides to allow location services to be used, an UIApplicationDidBecomeActiveNotification message is sent which causes the applicationDidBecomeActive message to be called.