问题
I am trying to get my app to get the longitude and latitude of the users current position as soon as they load up the app. From here I can tell if they are a certain distance from a point, and call different functions based on this.
I can get it to work fine from viewDidLoad, but I don't want it to keep performing this every time said view is loaded. How would I (if possible) call this from the app delegates didFinishLaunchingWithOptions method?
回答1:
I think you're looking for CLLocationManager, which is the GPS implementation. It has no UI and runs in the background, but you don't invoke it from the PList, you implement a class. Find the "LocateMe" example project for the code.
来源：https://stackoverflow.com/questions/6683976/ios-corelocation-get-users-location-when-the-app-loads