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copied!<p><strong>The location manager protocol reference</strong></p> <p><a href="https://developer.apple.com/library/mac/#documentation/CoreLocation/Reference/CLLocationManagerDelegate_Protocol/CLLocationManagerDelegate/CLLocationManagerDelegate.html" rel="nofollow">https://developer.apple.com/library/mac/#documentation/CoreLocation/Reference/CLLocationManagerDelegate_Protocol/CLLocationManagerDelegate/CLLocationManagerDelegate.html</a></p> <p>1.In Appdelegate </p> <pre><code>#import <CoreLocation/CoreLocation.h> </code></pre> <p>In @interface file</p> <pre><code>CLLocationManager *locationManager; @property (nonatomic, retain) CLLocationManager *locationManager; </code></pre> <p>and add protocol <strong>CLLocationManagerDelegate</strong> protocol.</p> <p>2.Impliment these functions in .m.</p> <pre><code>@synthesize locationManager; - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.locationManager = [[[CLLocationManager alloc] init] autorelease]; self.locationManager.delegate = self; self.locationManager.desiredAccuracy = kCLLocationAccuracyBest; self.locationManager.distanceFilter = 1.0; [self.locationManager startUpdatingLocation]; } - (void)locationManager:(CLLocationManager *)manager didEnterRegion:(CLRegion *)region { // Show an alert or otherwise notify the user } - (void)locationManager:(CLLocationManager *)manager didExitRegion:(CLRegion *)region { } - (void)locationManager:(CLLocationManager *)manager monitoringDidFailForRegion:(CLRegion *)region withError:(NSError *)error { } </code></pre> <p><strong>Note</strong>:If you want to debug first set current location in simulator At <strong>Debug--->Location--->Custom Location.</strong></p>

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