Fixed issue navigating away and back to tab view

Aurora/Design/Components/TabView/TabView.cs

@@ -153,7 +153,7 @@ namespace Aurora.Design.Components.TabView
                     }
                 }
 
-                SetCurrentTab(0, true);
+                SetCurrentTab(SelectedTabIndex, true);
             }
         }
 
@@ -439,7 +439,13 @@ namespace Aurora.Design.Components.TabView
         #endregion
 
         #region SelectedTabIndex
-        public static readonly BindableProperty SelectedTabIndexProperty = BindableProperty.Create(nameof(SelectedTabIndex), typeof(int), typeof(TabViewControl), 0, propertyChanged: OnSelectedTabIndexChanged);
+        public static readonly BindableProperty SelectedTabIndexProperty = BindableProperty.Create(
+            nameof(SelectedTabIndex),
+            typeof(int),
+            typeof(TabViewControl),
+            defaultValue: 0,
+            defaultBindingMode: BindingMode.TwoWay,
+            propertyChanged: OnSelectedTabIndexChanged);
         private static void OnSelectedTabIndexChanged(BindableObject bindable, object oldValue, object newValue)
         {
             if (bindable is TabViewControl tabViewControl && tabViewControl.ItemSource != null)
@@ -477,14 +483,25 @@ namespace Aurora.Design.Components.TabView
 
             if (((position >= 0 && position < ItemSource.Count) || initialRun))
             {
-                if (oldPosition < ItemSource.Count && _mainContainerSL.Children.Count == 2)
+                if (oldPosition < ItemSource.Count)
+                {
+                    List<bool> tabActiveList = ItemSource.Select((TabItem tab, int index) =>
+                    {
+                        return index == position;
+                    })
+                    .ToList();
+
+                    for (int i = 0; i < tabActiveList.Count(); i++)
+                    {
+                        ItemSource[i].IsCurrent = tabActiveList[i];
+                    }
+                    // Remove second child 
+                    if (_mainContainerSL.Children.Count == 2)
                     {
-                    ItemSource[oldPosition].IsCurrent = false;
-                    //Remove second child 
                         _mainContainerSL.Children.RemoveAt(1);
                     }
+                }
                 _mainContainerSL.Children.Add(ItemSource[position].Content);
-                ItemSource[position].IsCurrent = true;
                 SelectedTabIndex = position;
                 Device.BeginInvokeOnMainThread(async () => await _tabHeadersContainerSv.ScrollToAsync(_headerContainerGrid.Children[position], ScrollToPosition.MakeVisible, false));
 

Aurora/Design/Views/Party/PartyView.xaml

@@ -18,6 +18,7 @@
                  HorizontalOptions="FillAndExpand"
                  VerticalOptions="FillAndExpand"
                  TabSizeOption="100"
+                 SelectedTabIndex="{Binding SelectedTabIndex}"
                  HeaderBackgroundColor="#232323"
                  x:Name="TabView">
                 <tabView:TabViewControl.ItemSource>

Aurora/Design/Views/Party/PartyViewModel.cs

@@ -34,6 +34,8 @@ namespace Aurora.Design.Views.Party
         private BaseMedia _selectedMedia;
         private ClientService _client;
 
+        private int _selectedTabIndex;
+
         public PartyViewModel()
         {
             _members = new ObservableCollection<PartyMember>();
@@ -59,6 +61,12 @@ namespace Aurora.Design.Views.Party
 
         #region Properties
 
+        public int SelectedTabIndex
+        {
+            get { return _selectedTabIndex; }
+            set { SetProperty(ref _selectedTabIndex, value); }
+        }
+
         /// <summary>
         /// Publc property for the members list
         /// </summary>
@@ -119,6 +127,7 @@ namespace Aurora.Design.Views.Party
         /// <returns></returns>
         public override async Task OnActive()
         {
+            OnPropertyChanged("SelectedTabIndex");
             if (this._state == PartyState.Hosting ||
                 this._state == PartyState.InParty)
             {