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    <p>Now that iOS6 is out the best way to have a forever running location services is...</p> <pre><code>- (void)applicationWillResignActive:(UIApplication *)application { /* Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game. */ NSLog(@"to background"); app.isInBackground = TRUE; UIApplication *app = [UIApplication sharedApplication]; // Request permission to run in the background. Provide an // expiration handler in case the task runs long. NSAssert(bgTask == UIBackgroundTaskInvalid, nil); bgTask = [app beginBackgroundTaskWithExpirationHandler:^{ // Synchronize the cleanup call on the main thread in case // the task actually finishes at around the same time. dispatch_async(dispatch_get_main_queue(), ^{ if (bgTask != UIBackgroundTaskInvalid) { [app endBackgroundTask:bgTask]; bgTask = UIBackgroundTaskInvalid; } }); }]; // Start the long-running task and return immediately. dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ // Do the work associated with the task. locationManager.distanceFilter = 100; locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters; [locationManager startMonitoringSignificantLocationChanges]; [locationManager startUpdatingLocation]; NSLog(@"App staus: applicationDidEnterBackground"); // Synchronize the cleanup call on the main thread in case // the expiration handler is fired at the same time. dispatch_async(dispatch_get_main_queue(), ^{ if (bgTask != UIBackgroundTaskInvalid) { [app endBackgroundTask:bgTask]; bgTask = UIBackgroundTaskInvalid; } }); }); NSLog(@"backgroundTimeRemaining: %.0f", [[UIApplication sharedApplication] backgroundTimeRemaining]); } </code></pre> <p>Just tested it like that:</p> <p>I started the app, go background and move in the car by some minutes. Then I go home for 1 hour and start moving again (without opening again the app). Locations started again. Then stopped for two hours and started again. Everything ok again...</p> <p>DO NOT FORGET USING the new location services in iOS6</p> <pre><code>- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations { CLLocation *loc = [locations lastObject]; // Lat/Lon float latitudeMe = loc.coordinate.latitude; float longitudeMe = loc.coordinate.longitude; } </code></pre>
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    1. POHow do I get a background location update every n minutes in my iOS application?
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    1. USAlejandro Luengo
    1. USAlejandro Luengo
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    1. COIf the app crashes or is killed, the system doesn't restart, right?
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      1. USKen
    2. CONo, if the app crashes it's dead...
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      1. USAlejandro Luengo
    3. COFor more readable code, you can do a [locations lastObject]; instead of the [locations objectAtIndex:[locations count] - 1]
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