Added progress indications

HueUWP/APIHandler.cs

@@ -61,7 +61,7 @@ namespace HueUWP
             lights.ForEach(l => SetLightValues(l));
         }
 
-        public async void GetAllLights(ObservableCollection<Light> alllights)
+        public async Task<String> GetAllLights(ObservableCollection<Light> alllights)
         {
            // List<Light> lightlist = new List<Light>();
             try {
@@ -91,6 +91,8 @@ namespace HueUWP
                 Debug.WriteLine(e.StackTrace);
                 Debug.WriteLine("Could not get all lights.");
             }
+
+            return string.Empty;
         }
 
 

HueUWP/MainPage.xaml

@@ -24,7 +24,9 @@
             <TextBlock RelativePanel.AlignLeftWithPanel="True" FontSize="24" Margin="20,10,0,0">Hue Lights</TextBlock>
         </RelativePanel>
 
-        <StackPanel Grid.Row="1" Margin="0,10,0,0">
+        <ProgressRing Grid.Row="1" Height="60" Width="60" RelativePanel.AlignHorizontalCenterWithPanel="True" Margin=" 0,10,0,10" IsActive="True" Name="Loading" />
+
+        <StackPanel Grid.Row="1" Margin="0,10,0,0" Name="LightListPanel" Visibility="Collapsed">
             <ListView x:Name="myListView" ItemsSource="{Binding}" IsItemClickEnabled="True" ItemClick="myListView_ItemClick">
                 <ListView.ItemTemplate>
                     <DataTemplate x:Name="dataTemplate">

HueUWP/MainPage.xaml.cs

@@ -5,6 +5,7 @@ using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices.WindowsRuntime;
+using System.Threading.Tasks;
 using Windows.Foundation;
 using Windows.Foundation.Collections;
 using Windows.Storage;
@@ -46,8 +47,21 @@ namespace HueUWP
             //LOCAL_SETTINGS.Values["port"] = 8000;
             NetworkHandler nwh = new NetworkHandler();
             api = new APIHandler(nwh);
+
+            
+        }
+
+        protected override void OnNavigatedTo(NavigationEventArgs e)
+        {
+            Load_Lights();
+        }
+
+        private async void Load_Lights()
+        {
             _lightsViewModel.Clear();
-            api.GetAllLights(_lightsViewModel);
+            Loading.IsActive = true;
+            await api.GetAllLights(_lightsViewModel);
+            Loading.IsActive = false;
         }
 
         public void ToggleSwitch_Tapped(object sender, TappedRoutedEventArgs e)
@@ -76,8 +90,7 @@ namespace HueUWP
 
         private void RefreshButton_Click(object sender, RoutedEventArgs e)
         {
-            _lightsViewModel.Clear();
-            api.GetAllLights(_lightsViewModel);
+            Load_Lights();
         }
 
         private void myListView_ItemClick(object sender, ItemClickEventArgs e)

HueUWP/NetworkHandler.cs

@@ -138,15 +138,5 @@ namespace HueUWP
             return response;
         }
 
-        public async Task<String> Test()
-        {
-            var response = await Get( "111bb033202ac68b5812245c22f77eb/lights");
-            if (string.IsNullOrEmpty(response))
-                await new MessageDialog("Error while setting username. ….").ShowAsync();
-            return response;
-        }
-
-
-
     }
 }

HueUWP/SettingsView.xaml

@@ -30,11 +30,17 @@
             <StackPanel Margin="20">
                 <TextBlock FontSize="16">User ID</TextBlock>
                 <TextBox Margin="0,10,0,10" Text="{x:Bind SettingsViewModel.ID, Mode=OneWay}"  IsEnabled="False"/>
-                <Button Margin="0,10,0,10" Name="UpdateID" Click="UpdateID_Click">
-                    <StackPanel Orientation="Horizontal">
-                        <TextBlock FontFamily="Segoe MDL2 Assets" FontSize="10" Margin="10" Text="&#xE72C;" /><TextBlock FontSize="10" Margin="10" Text="Request new" />
-                    </StackPanel>
-                </Button>
+                <StackPanel Orientation="Horizontal" Margin="0,10,0,10">
+                    <Button Name="UpdateID" Click="UpdateID_Click">
+                        <StackPanel Orientation="Horizontal">
+                            <TextBlock FontFamily="Segoe MDL2 Assets" FontSize="15" Margin="5, 9, 5, 5" Text="&#xE72C;" />
+                            <TextBlock FontSize="15" Margin="5" Text="Request new" />
+                        </StackPanel>
+                    </Button>
+                    
+                    <ProgressRing Height="35" Width="35" Margin="20, 0, 0, 0" IsActive="False" Name="UserIdProgress" />
+                    
+                </StackPanel>
             </StackPanel>
         </StackPanel>
     </Grid>

HueUWP/SettingsView.xaml.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices.WindowsRuntime;
+using System.Threading.Tasks;
 using Windows.Foundation;
 using Windows.Foundation.Collections;
 using Windows.UI.Xaml;
@@ -34,8 +35,10 @@ namespace HueUWP
 
         private async void UpdateID_Click(object sender, RoutedEventArgs e)
         {
-           await api.Register();
-           SettingsViewModel.Update();   
+            UserIdProgress.IsActive = true;
+            await api.Register();
+            UserIdProgress.IsActive = false;
+            SettingsViewModel.Update();   
         }
 
         protected override void OnNavigatedTo(NavigationEventArgs e)