Add app refresh

PlantBox.Client/PlantBox.Client/Forms/HomePage.xaml

@@ -11,13 +11,15 @@
     <ContentPage.Content>
         <AbsoluteLayout>
             <!--List-->
-            <ListView AbsoluteLayout.LayoutBounds="0, 0, 1, 1"
+            <ListView x:Name="List"
+                      AbsoluteLayout.LayoutBounds="0, 0, 1, 1"
                       AbsoluteLayout.LayoutFlags="All"
                       ItemsSource="{Binding Plants}"
                       SelectionMode="None"
-                      IsPullToRefreshEnabled="True"
                       RowHeight="{OnPlatform Android=85}"
                       SeparatorVisibility="None"
+                      IsPullToRefreshEnabled="True"
+                      Refreshing="ListView_Refreshing"
                       ItemTapped="ListView_ItemTapped">
                 <ListView.ItemTemplate>
                     <DataTemplate>

PlantBox.Client/PlantBox.Client/Forms/HomePage.xaml.cs

@@ -48,5 +48,14 @@ namespace PlantBox.Client.Forms
         {
 
         }
+
+        private async void ListView_Refreshing(object sender, EventArgs e)
+        {
+            var homeViewModel = (HomeViewModel)BindingContext;
+
+            await Task.Run(() => homeViewModel.Plants = homeViewModel.LoadPlants(App.Settings.IDs));
+
+            List.EndRefresh();
+        }
     }
 }