Start and stop location tracking in iOS depending on registration status

wrk-fmd · Dec 27, 2019 · 814e4c8 · 814e4c8
1 parent 385aaeb
commit 814e4c8
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Showing 5 changed files with 28 additions and 22 deletions.
diff --git a/GeoClient/GeoClient.iOS/AppDelegate.cs b/GeoClient/GeoClient.iOS/AppDelegate.cs
@@ -1,5 +1,5 @@
-
-using Foundation;
+using Foundation;
+using GeoClient.Services.Registration;
 using UIKit;
 
 namespace GeoClient.iOS
@@ -8,8 +8,16 @@ namespace GeoClient.iOS
     // User Interface of the application, as well as listening (and optionally responding) to 
     // application events from iOS.
     [Register("AppDelegate")]
-    public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate
+    public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate, IGeoRegistrationListener
     {
+        private readonly LocationManager _locationManager;
+
+        private AppDelegate()
+        {
+            RegistrationService.Instance.RegisterListener(this);
+            _locationManager = new LocationManager();
+        }
+
         //
         // This method is invoked when the application has loaded and is ready to run. In this 
         // method you should instantiate the window, load the UI into it and then make the window
@@ -23,9 +31,18 @@ public override bool FinishedLaunching(UIApplication app, NSDictionary options)
             ZXing.Net.Mobile.Forms.iOS.Platform.Init();
             LoadApplication(new App());
 
-            new LocationManager().StartLocationUpdates();
 
             return base.FinishedLaunching(app, options);
         }
+
+        public void GeoServerRegistered()
+        {
+            _locationManager.StartLocationUpdates();
+        }
+
+        public void GeoServerUnregistered()
+        {
+            _locationManager.StopLocationUpdates();
+        }
     }
 }
diff --git a/GeoClient/GeoClient.iOS/LocationManager.cs b/GeoClient/GeoClient.iOS/LocationManager.cs
@@ -59,6 +59,12 @@ public void StartLocationUpdates()
             }
         }
 
+        public void StopLocationUpdates()
+        {
+            Console.WriteLine("Requesting stop of location updates from underlying location manager.");
+            _manager.StopUpdatingLocation();
+        }
+
         private void InformRegistryAboutLocationUpdate(CLLocation lastLocation)
         {
             Location updatedLocation = CreateXamarinLocation(lastLocation);

diff --git a/GeoClient/GeoClient.iOS/Main.cs b/GeoClient/GeoClient.iOS/Main.cs
@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-
-using Foundation;
-using UIKit;
+using UIKit;
 
 namespace GeoClient.iOS
 {

diff --git a/GeoClient/GeoClient/Services/IDataStore.cs b/GeoClient/GeoClient/Services/IDataStore.cs
diff --git a/GeoClient/GeoClient/Services/Utils/AsyncHelper.cs b/GeoClient/GeoClient/Services/Utils/AsyncHelper.cs
@@ -1,6 +1,4 @@
 using System;
-using System.Collections.Generic;
-using System.Text;
 using System.Threading;
 using System.Threading.Tasks;