Xcode：我的用户位置在第一次运行模拟时没有显示，但是在第二次运行时显示

Question

Whenever I first open up the project and hit build and run the first time the app won't focus on the current user location. But if I stop the simulation and build it again and run it, it will then focus on the user location like I want it to. I can't figure out why it does this, is it something wrong with the simulator or is something wrong with my code?

super viewDidLoad];
self.mapview.showsUserLocation = YES;
self.mapview.delegate = self;
[self.mapview setUserTrackingMode:MKUserTrackingModeFollow animated:YES];

Answer 1

Did you try Debug->Location Service ? try this

Answer 2

For now move self.mapview.showsUserLocation = YES; to the last line. This could do what you expect.