get user location using async

Generated on 8/4/2024

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To get the user's location using async in Swift, you can leverage the new CoreLocation APIs introduced at WWDC. Specifically, you can use the CLLocationUpdate and CLMonitor objects, which present an async sequence interface for getting latitude and longitude updates or state change events.

Here's a simplified example of how you might implement this:

import CoreLocation

func getUserLocation() async throws -> CLLocation {
    let locationManager = CLLocationManager()
    locationManager.requestWhenInUseAuthorization()
    
    for try await location in locationManager.locationUpdates {
        return location
    }
    
    throw NSError(domain: "LocationError", code: 1, userInfo: [NSLocalizedDescriptionKey: "Failed to get location"])
}

In this example:

  1. You create an instance of CLLocationManager.
  2. Request location authorization using requestWhenInUseAuthorization().
  3. Use an async sequence to await location updates.

For more details on the new CoreLocation APIs and how to handle location authorization, you can refer to the session What’s new in location authorization (01:47).

Relevant Sessions

  1. What’s new in location authorization
  2. Unlock the power of places with MapKit