core-location

问题 Though there is a similar question found here it does not provide an answer, at least not for the general problem. My problem is: Since CoreLocation geocoding is rate limited and the (web-)service I am developing an app for provides its own fallback geocoding service, I want to use this custom geocoding service in case I reach Apple's rate limit. Furthermore, I feel it makes total sense to avoid a custom data type for results returned by this custom REST API and therefore would like to use

问题 Though there is a similar question found here it does not provide an answer, at least not for the general problem. My problem is: Since CoreLocation geocoding is rate limited and the (web-)service I am developing an app for provides its own fallback geocoding service, I want to use this custom geocoding service in case I reach Apple's rate limit. Furthermore, I feel it makes total sense to avoid a custom data type for results returned by this custom REST API and therefore would like to use

问题 I am using CLLocationManager class. I have a simple class method for capturing the location +(void)captureLocation{ mLocationManager = [[CLLocationManager alloc]init]; mLocationManager.delegate = (id<CLLocationManagerDelegate>)self; mLocationManager.desiredAccuracy = kCLLocationAccuracyBest; [mLocationManager startUpdatingLocation]; } and i have the delegate methods of CLLocationManager also - (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error { } - (void

问题 I'm using CoreLocation framework in my app in Xcode7(pre-released),and I noticed that there is a newly added property called allowsBackgroundLocationUpdates in CLLocationManager class. What's the relationship between this property and the location updates in the Background Modes of the Capabilities tab. What's the default value of it and does it affect apps running in iOS9? 回答1: This new property is explained in the WWDC session "What's New in Core Location". The default value is NO if you

问题 With a 3G GPS device (i.e. iPad 3G) is there a way to know if a reported CLLocation is based on a GPS signal, and not the inaccurate cellular data? 回答1: The CLLocation class has a method called -horizontalAccuracy:. This will give you some idea of the radius of accuracy of that measurement. This is probably better than asking just "is it GPS" because GPS readings can also be pretty inaccurate, depending on receiving conditions and satellite visibility. 来源： https://stackoverflow.com/questions

问题 I'm developing an app that works in the background to get the user's location and send it to server using http requests. My first intention was to get the user's location every n minutes, but after alot of research and trial, i gave up since ios kills my background tasks after 3 minutes. Then i tried working on MonitoringSignificantLocationChanges, but its inaccurate location updates due to cell tower usage ruins the purpose of my app. A solution to any of the following is greatly appreciated

问题 Under iOS13, when you request the .always permission for coreLocation (to enable background location e.g. for geofences or iBeacons), the app is only granted a "provisional always" permission, which does not allow it to use coreLocation in the background. At a later stage, in principle the OS should popup a permission request to switch to the .always permission. I have yet to experience it, and it seems (looking at Apple developer forums) that nobody have found a way to consistently trigger

问题 For some reason didUpdateLocations is not being called, even when I set the delegate to the view controller. In info.plist I set the key Privacy - Location When In Use Usage Description to a description. So I'm not sure what I could be doing wrong? import MapKit import CoreLocation class OptionsViewController: UIViewController, UITableViewDelegate, CLLocationManagerDelegate { override func viewDidLoad() { //Ask user for location locationManager = CLLocationManager() locationManager

问题 I have configured locationManager as follows. _locationManager = [[CLLocationManager alloc] init]; [_locationManager setDelegate:self]; [_locationManager setDesiredAccuracy:kCLLocationAccuracyNearestTenMeters]; [_locationManager setDistanceFilter:kCLDistanceFilterNone]; When the application runs, I get some updates from the delegate methods. And when I do not change the location, and the mobile is stationary for about 2 hrs, I receive about 10-12 updates in the first 10 mins, and then stop

问题 Here's the code I'm using -- Problem is that the value of latitude and longitude in the returned CLLocationCoordinate2D object are both -1, their initialized values. What am I missing? func getLocationInfoForAddress(shop: store) -> CLLocationCoordinate2D { var address = getAddressInOneLine(shop) var latitude: CLLocationDegrees = -1 var longitude: CLLocationDegrees = -1 var geocoder = CLGeocoder() geocoder.geocodeAddressString(address, {(placemarks: [AnyObject]!, error: NSError!) -> Void in if