Geo targeting is the method to show different content to your users based on their geographic location, such as country, region, city or any other criteria.There are a lot of common uses of geo targeting.Imagine a customer visiting your competitor’s restaurant.We can show him or her special offer in your restaurant and engage customer’s attention and return him into your restaurant back.If user visited a lot of car dealerships in last few days, it’s likely that he want to find new car.So, we can show him our car advertising.This targeted advertising will be more successful than other one which we show to random user.In this tutorial I will show you how to implement geo targeting functionality on iOS.I will describe Apple’s standard method with CLRegion class.Also, I will show you how to test this uncommon feature.We will see how to implement complex tracking logic.Finally, I will describe you how to create your custom regions and explain you why and when custom regions are better than CLRegion.

You can use geo targeting to develop a lot of innovative location-based mobile apps.Let’s assume that we want to track our user visiting restaurant.I want to start with project setup.I created new Swift Single View Appliction project with name GeoTargeting.Go to Main.storyboard and add new Map View to a ViewController’s view.Create @IBOutlet for this Map View in ViewController.swift.Compiler will show you an error, but wait a minute, we will fix it.Our storyboard is ready.Now we can move to ViewController.swift.Let’s import Apple’s frameworks MapKit and CoreLocation.And add their protocols to the ViewController.Now ViewController.swift should look like this: import UIKit import MapKit import CoreLocation class ViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate { @IBOutlet weak var mapView: MKMapView!override func viewDidLoad() { super.viewDidLoad( ) } } 123456789 : , , {@ : !)}} Now we can setup our mapView and create new locationManager.

// 1. create locationManager let locationManager = CLLocationManager() override func viewDidLoad() { super.viewDidLoad( ) // 2. setup locationManager locationManager.delegate = self; locationManager.distanceFilter = kCLLocationAccuracyNearestTenMeters; locationManager.desiredAccuracy = kCLLocationAccuracyBest; // 3. setup mapView mapView.delegate = self mapView.showsUserLocation = true mapView.userTrackingMode = .Follow // 4. setup test data setupData() } 123456789 = () () {.(What we add to the ViewController: Now it’s time to start tracking user’s location.But we don’t know if we have correct access rights.override func viewDidAppear(animated: Bool) { super.viewDidAppear(animated) // 1. status is not determined if CLLocationManager.authorizationStatus() == .NotDetermined { locationManager.requestAlwaysAuthorization() } // 2. authorization were denied else if CLLocationManager.authorizationStatus() == .Denied { showAlert("Location services were previously denied.

Please enable location services for this app in Settings.")} // 3. we do have authorization else if CLLocationManager.authorizationStatus() == .AuthorizedAlways { locationManager.startUpdatingLocation() } } 123456789 (: ) {.()Let’s elaborate this method.First of all, we check authorization status in viewDidAppear method because we can recheck status after user changed it in settings and come back to our app.So, which Now you can run app.You may ask me – why app didn’t prompt location authorization alert?ios shop wechselnWe should go to ...-Info.plist file and add new row NSLocationAlwaysUsageDescription and add value for this key, e.g.iris yamashita“Regions needs to always be able to access your location.”.ios button image

This key is required when we use requestAlwaysAuthorization() method.Otherwise system will ignore location request.This key describes why your system want to use user’s location.After adding this key you can run app once again.Now system will prompt authorization alert with our description.Of course, there are few more statuses of the location authorization, that our app may have.But this is basic which we need for this tutorial.Now we are ready to monitor regions, let’s add them.reviews for best vaporizerfunc setupData() { // 1. check if system can monitor regions if CLLocationManager.isMonitoringAvailableForClass(CLCircularRegion.self) { // 2. region data let title = "Lorrenzillo's" let coordinate = CLLocationCoordinate2DMake(37.703026, -121.759735) let regionRadius = 300.0 // 3. setup region let region = CLCircularRegion(center: CLLocationCoordinate2D(latitude: coordinate.latitude, longitude: coordinate.longitude), radius: regionRadius, identifier: title) locationManager.startMonitoringForRegion(region) // 4. setup annotation let restaurantAnnotation = MKPointAnnotation() restaurantAnnotation.coordinate = coordinate; restaurantAnnotation.title = "\(title)"; mapView.addAnnotation(restaurantAnnotation) // 5. setup circle let circle = MKCircle(centerCoordinate: coordinate, radius: regionRadius) mapView.addOverlay(circle) } else { print("System can't track regions") } } // 6. draw circle func mapView(mapView: MKMapView, rendererForOverlay overlay: MKOverlay) -> MKOverlayRenderer { let circleRenderer = MKCircleRenderer(overlay: overlay) circleRenderer.strokeColor = UIColor.redColor() circleRenderer.lineWidth = 1.0 return circleRenderer } 123456789 () { .(.)which vape pen to buy uk

{ = = (., -.)= .0 = (: (: .,: .), : , : ).()= (: , : ).()}{()}} (: , : ) { = (: ).= } Let’s understand together what we did in setupData() method step by step.That’s it with project setup.We are ready for region monitoring.In this tutorial we are working with geographical regions.Apple’s CLRegion – is an circle area of a specified radius around a known location.So, with CLRegion you can monitor only circle areas.Let’s add some code for tracking regions.// 1. user enter region func locationManager(manager: CLLocationManager, didEnterRegion region: CLRegion) { showAlert("enter \(region.identifier)") } // 2. user exit region func locationManager(manager: CLLocationManager, didExitRegion region: CLRegion) { showAlert("exit \(region.identifier)") } 123456789 (: , : ) {(\(.)")} (: , : ) {(\(.)")} We added two methods for notifying user that he cross region’s boundaries.pax vaporizer ploom review

We use our alert shortcut method for visualize it.The system will fire this methods only when the boundary plus a system-defined cushion distance is crossed.This cushion prevents the user being attacked by the system from numerous enter/exit events in short time while the user is traveling close the edge of the boundary.You should be careful with number of simultaneously tracking regions.The system limited regions count to 20 for one app.If you want to work with larger regions count you can track only this regions, which are close to user’s location right now.ios host serviceWhen the user’s location changes, you can remove regions that are now farther way and add regions coming up on the user’s path.ios running serviceIf reach regions limit, location manager will fire monitoringDidFailForRegion method.vapor store in dover delaware

You can handle it for better app’s UX.Just two methods and a lot of limitation to work with them which we should always keep in mind.We set up all methods we need for working with simple regions.Now you can go to your car and try to drive through your region.There is another convenient way to test this functionality.There is the convenient way how to do it with Xcode.We will use GPX files.GPX is an XML schema described common GPS data format for using in software development.It is easier to show it than describe it. 123456 == =>= =>= =>= => In this example GPX we put three points near our region.Xcode will take it one-by-one and move user’s location.One second per one point.Please, download my GPX file America.gpx.After you downloaded GPX file just drag-and-drop it into your project.

Now we can run application, go back to Xcode → Open Debug Area → Choose “Simulate location” → Choose America.Go back to simulator, user’s location should start moving.After few seconds you will see alert “enter Lorrenzillo’s”, after few more seconds “exit Lorrenzillo’s”.So, our regions finally works!For some applications enter/exit events is enough.But what if you want track more complicated logic?Maybe you are interesting how long user where in a region or user’s average speed while he was in the region.In this example we will check if user were enough time in our restaurant, which means he is a visitor and we can ask him for his feedback.Let’s add some improvements into our project.// 1. var monitoredRegions: Dictionary = [:] func locationManager(manager: CLLocationManager, didEnterRegion region: CLRegion) { showAlert("enter \(region.identifier)") // 2.1.Add entrance time monitoredRegions[region.identifier] = NSDate() } func locationManager(manager: CLLocationManager, didExitRegion region: CLRegion) { showAlert("exit \(region.identifier)") // 2.2 Remove entrance time monitoredRegions.removeValueForKey(region.identifier) } // 3.

Update regions logic func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { updateRegions() } 123456789 : <, > = [:] (: , : ) {(\(.)")[.] = ()} (: , : ) {(\(.)").(.)}(: , : []) {()} func updateRegions() { // 1. let regionMaxVisiting = 10.0 var regionsToDelete: [String] = [] // 2. for regionIdentifier in monitoredRegions.keys { // 3. if NSDate().timeIntervalSinceDate(monitoredRegions[regionIdentifier]!)> regionMaxVisiting { showAlert("Thanks for visiting our restaurant") regionsToDelete.append(regionIdentifier) } } // 4. for regionIdentifier in regionsToDelete { monitoredRegions.removeValueForKey(regionIdentifier) } } 123456789 () { = .0 : [] = [] .Now you can implement absolutely any complex login within updateRegions method.Unfortunately, Apple’s CLRegion has few limitations.And one of this that you can’t monitor region if your application has only “While in Use” location access.

As we know, a lot of users aware of their battery life and they don’t want your app always track them.It’s really hard to explain to users that their life will be better if they allow your app to use location always.That’s why sometimes you want to track regions only while user run your app.I suggest to create your custom region class, with similar interface and callback methods like CLRegion.So, it will be easier to understand what you class do for you and any other develop how already familiar with CLRegion.protocol RegionProtocol { var coordinate: CLLocation {get} var radius: CLLocationDistance {get} var identifier: String {get} func updateRegion() } protocol RegionDelegateProtocol { func didEnterRegion() func didExitRegion() } 123456789 { : {} : {} : {} ()} { () ()} You can use this protocols for easily move from CLRegion to your custom class.One more CLRegion limitation is that we can track only circle areas.Sometimes, we want monitor polygon area (square, pentagan, etc.)