CLLocationManager does not initialize on viewDidLoad - ios

Question

I have a simple objective C app with UIWebView. This is loading an URL in viewDidLoad method and I need to localize this URL BEFORE the loadRequest but my CLLocationManager is calling the didUpdateToLocation method AFTER the loadRequest.
My viewDidLoad method:
- (void)viewDidLoad {
// execute super method
[super viewDidLoad];
// put gray background color
self.view.backgroundColor = [UIColor lightGrayColor];
// define itself as UIWebView delegate
self.webView.delegate = self;
// define itself as CLLocationManager delegate
locationManager = [[CLLocationManager alloc] init];
locationManager.delegate = self;
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];
NSLog(#"LOCALIZED????%#",[self getCustomURL:homeURL]);
[self.webView loadRequest:[[NSURLRequest alloc] initWithURL:[NSURL URLWithString:[self getCustomURL:homeURL]]]];
}
I'm always getting (null) when calling loadRequest, but just after i'm getting the correct location.
I've tried to separate in a new thread the startUpdatingLocation
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 2 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
[locationManager startUpdatingLocation];
});
Or waiting till getting a correct location:
while (longitude == nil) {
[locationManager startUpdatingLocation];
}
Any idea how can I get the location before the loadRequest to have the url

Answer 1

CLLocationManager is an async task. To execute the loadRequest after the location, you need to implement the delegate for the CLLocationManager and then call the loadRequest on the webview

Answer 2

You can use loadRequest in method from CLLocationManagerDelegate:
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {
……
……
[self.webView loadRequest:[[NSURLRequest alloc] initWithURL:[NSURL URLWithString:[self getCustomURL:homeURL]]]];
……
……
}
Also, in iOS8, you need to do couple things to get location:
1) Call requestWhenInUseAuthorization method before startUpdatingLocation:
if ([locationManager respondsToSelector:#selector(requestWhenInUseAuthorization)]) {
[locationManager requestWhenInUseAuthorization];
}
[locationManager startUpdatingLocation];
2) add NSLocationAlwaysUsageDescription or NSLocationWhenInUseUsageDescription key to Info.plist.