Fix for intermittent crash when creating ExtendedExecutionSessoin to …

…run the app in background. Now if the creation fails then we simply notify user that the creation failed.
romitgirdhar · Apr 8, 2016 · 3a01b1f · 3a01b1f
1 parent 70a321a
commit 3a01b1f
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Showing 2 changed files with 29 additions and 19 deletions.
diff --git a/src/MobileApps/MyDriving/MyDriving.UWP/MyDriving.UWP.csproj b/src/MobileApps/MyDriving/MyDriving.UWP/MyDriving.UWP.csproj
@@ -400,7 +400,7 @@
     <SDKReference Include="Microsoft.VCLibs, Version=14.0">
       <Name>Visual C++ 2015 Runtime for Universal Windows Platform Apps</Name>
     </SDKReference>
-    <SDKReference Include="SQLite.UWP.2015, Version=3.11.1">
+    <SDKReference Include="SQLite.UWP.2015, Version=3.12.0">
       <Name>SQLite for Universal Windows Platform</Name>
     </SDKReference>
   </ItemGroup>

diff --git a/src/MobileApps/MyDriving/MyDriving.UWP/Views/CurrentTripView.xaml.cs b/src/MobileApps/MyDriving/MyDriving.UWP/Views/CurrentTripView.xaml.cs
@@ -184,28 +184,38 @@ private async Task BeginExtendedExecution()
 
             ClearExtendedExecution();
 
-            var newSession = new ExtendedExecutionSession
+            try
             {
-                Reason = ExtendedExecutionReason.LocationTracking,
-                Description = "Tracking your location"
-            };
-            newSession.Revoked += SessionRevoked;
-            ExtendedExecutionResult result = await newSession.RequestExtensionAsync();
-            switch (result)
-            {
-                case ExtendedExecutionResult.Allowed:
-                    session = newSession;
-                    ViewModel.Geolocator.AllowsBackgroundUpdates = true;
-                    ViewModel.StartTrackingTripCommand.Execute(null);
+                var newSession = new ExtendedExecutionSession
+                {
+                    Reason = ExtendedExecutionReason.LocationTracking,
+                    Description = "Tracking your location"
+                };
+                newSession.Revoked += SessionRevoked;
+                ExtendedExecutionResult result = await newSession.RequestExtensionAsync();
+                switch (result)
+                {
+                    case ExtendedExecutionResult.Allowed:
+                        session = newSession;
+                        ViewModel.Geolocator.AllowsBackgroundUpdates = true;
+                        ViewModel.StartTrackingTripCommand.Execute(null);
 
-                    break;
+                        break;
 
-                default:
-                    Acr.UserDialogs.UserDialogs.Instance.Alert("Unable to execute app in the background.",
-                      "Background execution denied.", "OK");
+                    default:
+                        Acr.UserDialogs.UserDialogs.Instance.Alert("Unable to execute app in the background.",
+                          "Background execution denied.", "OK");
 
-                    newSession.Dispose();
-                    break;
+                        newSession.Dispose();
+                        break;
+                }
+            }
+            catch (Exception ex)
+            {
+                // Sometimes while creating ExtendedExecution session you get Resource not ready exception. 
+                Logger.Instance.Report(ex);
+                Acr.UserDialogs.UserDialogs.Instance.Alert("Will not be able to execute app in the background.",
+                        "Background execution session failed.", "OK");
             }
         }