如何在iOS應用程序中每n分鐘獲得一次後臺位置更新？

Question

我明白，這個問題似乎已經已經在這裏找到答案： How do I get a background location update every n minutes in my iOS application?

然而，儘管該解決方案是在暗示，我會非常感激，如果有人可以張貼一些示例代碼，以這實際上是如何工作的。

非常感謝，

傑克

Answer 1

您需要在應用程序啓動訂閱核心位置。

一些這樣的事

CLLocationManager *locationManager = [[CLLocationManager alloc] init]; 
locationManager.delegate = self; 
locationManager.desiredAccuracy = kCLLocationAccuracyThreeKilometers; 

，並添加代表

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation 

Answer 2

試試這一個，你會得到lattitude和經度updated..in didUpdateToLocation ...

//in view did load 

locationManager = [[CLLocationManager alloc]init]; 
    if([CLLocationManager locationServicesEnabled]) 
    { 
     locationManager.delegate = self; 
     locationManager.desiredAccuracy = kCLLocationAccuracyKilometer; 
     locationManager.distanceFilter = 1000.0f; 
     [locationManager startUpdatingLocation]; 
     } 


- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { 
appDelegateObj.latitude= [[NSString alloc]initWithFormat:@"%g",newLocation.coordinate.latitude]; 
    appDelegateObj.longitude = [[NSString alloc]initWithFormat:@"%g",newLocation.coordinate.longitude]; 
    }