Location manage framework working in different modes





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4yrs ago











Dispatcher provides easy-to-use access to iOS device location/background location/tracking/etc. It wraps CoreLocation with convenient well customized interface. Dispatcher's classes for tracking current user location, direct and reverse geocoding , tracking enter/exit region, logging user route and speed.

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To run the example project, clone the repo, and run pod install from the Example directory first.

Add required .plist entries

By reason of iOS 8 you are required to define a message that will be presented to the user on location authorization request. You should define this message into your app's *-Info.plist file. Add at least one of the following keys, depending on which location update mode you request:

NSLocationWhenInUseUsageDescription or NSLocationAlwaysUsageDescription

Make sure you added this key in the right .plist file (common mistake is entering it into test-Info.plist) and appropriate message text as a value.

Tracking user location

To start tracking location, initialize AGLocationDispatcher or AGRouteDispatcher with default init for standart setup
(default updating interval - 1 min, horizontal accuracy - 100 meters)

also you can customize service with following initializer -

initWithUpdatingInterval: andDesiredAccuracy:

Demo apps:


Demo Demo

A simple app which displays current device location (and carries out some actions with these data) in a background app state. The app identifies the location and displays this information in case it is changed significantly (about ~1000 ft) or when the app processes fetch action from iOS (10~15 minutes interval). In a background mode app can identify location within a time limit (as well as send location to a server or save in coredata). Our AGBackgroundLocationDispatcher class integrates the location method with one simple API. (See AppDelegate.m).

Additional information: 1 Significant location 2 Background fetch



Demonstrate our simple wrapper that proposes method for multiple provider geocoder service. App shows geocode (location into address) and reverse geocode (address into location), with selection a provider from our list (Yandex, Google, Apple).



This demo app indicates when a user enters/exits the picked region with diameter un 100m. User can pick a region by dragging green circle, start tracking this region (start button in bottom), track his position on the map and receive notifications when entering or exiting the region. Just stop tracking current region and pick another one. Have fun! P.S. If you want to simulate location tracking: tap “Simulate location” icon in Xcode bottom bar and pick “New York City Marathon” when you start your app or go to you scheme > Edit scheme > Pick “New York City Marathon” in Default location list.



This demo app can track your current position, record your route, show your current average speed and distance. Also you can save your routes and view them later. Besides that you can pick one of 3 position markers styles. Just tap Start rec button and go on. You will see your current route drawn with green line. Press Stop & Save and go to saved routes screen by tapping Saved routes button. Here you can see your last saved route. You can pick any of your routes by tapping Saved routes button in bottom. Have fun!

P.S. If you want to simulate location tracking: tap “Simulate location” icon in Xcode bottom bar and pick “New York City Marathon” when you start your app or go to you scheme > Edit scheme > Pick “New York City Marathon” in Default location list.


AGRouteDispatcher *routeDisptcher = [AGRouteDispatcher initWithUpdatingInterval:kDefaultLocationTimeIntervalUpdateOneMinute andDesiredAccuracy:kAGHorizontalAccuracyThresholdBlock]

At viewcontroller's module, you can use this methods with blocks:

- (void)startUpdatingLocationWithBlock: errorBlock:
- (void)startUpdatingLocationAndSpeedWithBlock: errorBlock:
- (void)requestUserLocationWhenInUseWithBlock:
- (void)requestUserLocationAlwaysWithBlock:
- (void)currentLocationWithBlock: errorBlock:

inits and getters:

+ (BOOL)locationServicesEnabled;
+ (BOOL)significantLocationChangeMonitoringAvailable;

- (instancetype)init;
- (instancetype)initWithUpdatingInterval:(NSTimeInterval)interval andDesiredAccuracy:(CLLocationAccuracy)horizontalAccuracy;
- (CLLocationManager *)locationManager;
- (CLLocationAccuracy)horizontalAccuracyThreshold;

Background Tracking user location

AGLocationDispatcher allows several methods of background location, depends of application info plist configuratons and locationUpdateBackgroundMode setting (default is AGLocationBackgroundModeSignificantLocationChanges mode) When application is suspended or terminated you need use spectial background location wrapper: AGBackgroundLocationDispatcher (see example AppDelegate methods)

Background location modes:

  • No background location mode: When app go to backgroud location updated will stop. After app did become active location updating will be activated again. Set locationUpdateBackgroundMode property (AGLocationDispatcher object) to AGLocationBackgroundModeForegroundOnly state;

  • Always actiwe: required UIBackgroundModes "location" key, application never suspend, location accuracy and battery rate will be maximum, no need additional code. Set locationUpdateBackgroundMode property (AGLocationDispatcher object) to any state except AGLocationBackgroundModeForegroundOnly;

  • Significant location mode: Work when app is terminated/suspended, provide GPS-level accuracy (over 500 metters positon change) and very low-energy location updating. Required UIBackgroundModes "location" key and implementin special handler(based on AGBackgroundLocationDispatcher wrapper) in app delegate code (see example appDelegate method didFinishLaunchingWithOptions). Set locationUpdateBackgroundMode property (AGLocationDispatcher object) to AGLocationBackgroundModeSignificantLocationChanges state;

  • Fetch based location mode: Work when app is suspended, provide normall accuracy and very middle-energy location updating, but activated when device is unblock/activate. Required UIBackgroundModes "fetch" key and implementin special handler(based on AGBackgroundLocationDispatcher wrapper) in app delegate code (see example appDelegate method performFetchWithCompletionHandler). Set locationUpdateBackgroundMode property (AGLocationDispatcher object) to AGLocationBackgroundModeFetch state;

AGBackgroundLocationDispatcher code runs when app is NOT active, you default apps object amd UI will NOT exist. AGBackgroundLocationDispatcher code must store location locally (in file, coredata etc), send it to server side or create UILocalNotification (for start the app in normal mode). AGBackgroundLocationDispatcher code will be terminated by system after 10s~30s after active running.

AGBackgroundLocationDispatcher wrapper provide init method with block for you background code and callback block, you need call that block when you location task will complete.

Example AGBackgroundLocationDispatcher code:

[[AGBackgroundLocationDispatcher alloc] initWithASynchronousLocationUpdateBlock:^(AGLocation *newLocation, LDSignificationLocationASynchronousEndUpdateBlock updateCompletionBlock) {

    NSString *string = [NSString stringWithFormat:@"",  [newLocation description] ];
    NSURL *url = [NSURL URLWithString:string];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest: request];
    [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

        updateCompletionBlock(); //data send successfully

    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

        updateCompletionBlock(); //data dont send 


    [operation start];


Use geocoding

Use AGGeoDispatcher class for direct and reverse geocoding.

Just initialize AGGeoDispatcher class

AGGeoDispatcher *geoDispatcher = [[AGGeoDispatcher alloc] init]

implement following methods:

- (void)requestGeocodeForLocation: success: andFail:
- (void)requestLocationForAddress: success: andFail:

To choose geocode provider (Apple, Google, Yandex) use following method:

- (void)setGeocoderProvider:

Manage your route

AGRouteDispatcher class provide save/load AGRoute data in local storage with methods:

- (AGRoute *)loadRouteWithName:
- (void)saveRoute: name:
- (void)deleteDocWithName:

Regions Dispatcher

AGRegionDispatcher class used for monitoring enter/exit some region. Use this block methods for monitoring:

- (void)addCoordinateForMonitoring: updateBlock: failBlock:
- (void)addCoordinateForMonitoring: withRadius: desiredAccuracy: updateBlock: failBlock:
- (void)addRegionForMonitoring: desiredAccuracy: updateBlock: failBlock:
- (void)stopMonitoringForRegion:
- (void)stopMonitoringAllRegions



AGLocationDispatcher is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "AGLocationDispatcher"



Contact us


AGLocationDispatcher is available under the MIT license. See the LICENSE file for more info.

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