I am trying to remove a Purple Warning against CheckIfLocationServicesIsEnabled/.locationServicesEnabled when trying to resolve the user's location.
This is based on Sean Allen's YouTube video "How to Get User Location on Map - Swift" which is a year old and written around Xcode 13/iOS 15.0 (beta). The code below works and takes the Map to the user's location. BUT a purple warning appears...
final class LocationViewModel: NSObject, ObservableObject, CLLocationManagerDelegate {
var locationManager: CLLocationManager?
@Published var region = MKCoordinateRegion(center: MapDetails.startingLocation, span: MapDetails.defaultSpan)
func checkIfLocationServicesIsEnabled() {
DispatchQueue.main.asyncAfter(deadline: .now() + 2) {
// DispatchQueue.global().asyncAfter(deadline: .now() + 2) {
// DispatchQueue.global().async {
if CLLocationManager.locationServicesEnabled() {
self.locationManager = CLLocationManager()
self.locationManager!.delegate = self
self.locationManager?.desiredAccuracy = kCLLocationAccuracyBest
// self.locationManager?.startUpdatingLocation()
} else {
print("Location services are not enabled, please turn on.")
}
}
}
...
}
against the line:
if CLLocationManager.locationServicesEnabled() {
with "This method can cause UI unresponsiveness if invoked on the main thread. Instead, consider waiting for the -locationManagerDidChangeAuthorization: callback and checking authorizationStatus first."
I have been trying with a DispatchQueue to resolve this. If I use either of the DisaptchQueue.global() approaches I don't get the purple warning but the map does update from Apple's HQ to the user's Location.
// DispatchQueue.global().asyncAfter(deadline: .now() + 2) { or
// DispatchQueue.global().async {
Any ideas?
