iOS-应用程序委托-使用CLLocationManager调用didBecomeActive

Question

I've a typical problem. In my application, I'm handling the application delegate method

- (void)applicationDidBecomeActive:(UIApplication *)application

to refresh the UI.

As my application won't be terminated and running in background, when ever the app comes to active state, this method is being called and working fine.
But in one of my view controller, i'm creating CLLocationManager object

self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self; // send loc updates to myself

The problem is that, when this location manager object is being created, application delegate's "applicationDidBecomeActive" is also being called which is not necessary for me to handle. How should I neglect the call when location manager object is being initialized?

Answer 1

发生这样的调用很奇怪，但是如果没有办法阻止它，只需在默认值中加上一个标记，如callAfterSettingDelegate ，然后在DidBcomeActive检查是否在此之后调用了该标记，请忽略此调用并将该标记设置为零。