iOS Swift: Request user location

Question

I'm a beginner in iOS Swift and writing iOS Swift code and using UIWebView to load my web page.

And my web page will ask user to enable the user location.

I would like to do the similar behavior in iOS Swift code (popup an dialog and say something like "TestApp would like to access your location. Would you agree?")

I'm running on Simulator and I failed while using CLLocationManager

The following is my Swift code

import UIKit
import CoreLocation

class ViewController: UIViewController, CLLocationManagerDelegate {
@IBOutlet weak var customWebView: UIWebView!


override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    if let url = NSURL(string: "http://ctrlq.org/maps/where/") {
        let request = NSURLRequest(URL: url)
        customWebView.loadRequest(request)

        let locationManager = CLLocationManager()
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.requestAlwaysAuthorization()
        locationManager.startUpdatingLocation()

    }
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

}

Anyone knows how to request location?

Thanks in advance.

Eric

Answer 1

A couple of thoughts:

1. You've defined your CLLocationManager as a local variable, which will get released when it falls out of scope.

   Make this a property of your class.

2. If you really need requestAlwaysAuthorization, don't forget to set the NSLocationAlwaysUsageDescription in the plist as outlined in the documentation.

   (And if you don't need always authorization, but are ok with "in use" authorization, call requestWhenInUseAuthorization and set NSLocationWhenInUseUsageDescription value.)

Answer 2

You need to add a key NSLocationWhenInUseUsageDescription in yours info.plist file and in the value you write something that you want to show the user in the popup dialog. You need to test it on a real device cause Simulator accepts only custom locations. Select the Simulator -> Debug -> Location -> Custom Location...