Navigation menu is now a reusable component

Aurora/Frontend/Components/NavigationMenu/NavigationMenu.xaml.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using Aurora.Frontend.Views.Components.NavigationMenu;
+using Xamarin.Forms;
+
+namespace Aurora.Frontend.Components.NavigationMenu
+{
+    public partial class NavigationMenu : ContentPage
+    {
+        public NavigationMenu()
+        {
+            InitializeComponent();
+            ListView = MenuItemsListView;
+        }
+
+        public ListView ListView;
+
+        public static readonly BindableProperty ItemsProperty =
+            BindableProperty.Create(propertyName: nameof(Items),
+                returnType: typeof(ObservableCollection<NavigationItem>),
+                declaringType: typeof(NavigationMenu),
+                defaultBindingMode: BindingMode.TwoWay,
+                propertyChanged: OnItemsChanged);
+
+        public ObservableCollection<NavigationItem> Items
+        {
+            get 
+            { 
+                return (ObservableCollection<NavigationItem>)GetValue(ItemsProperty); 
+            }
+            set 
+            { 
+                SetValue(ItemsProperty, value); 
+            }
+        }
+
+        private static void OnItemsChanged(BindableObject bindable, object oldValue, object newValue)
+        {
+            var control = (NavigationMenu)bindable;
+            control.MenuItemsListView.ItemsSource = (ObservableCollection<NavigationItem>)newValue;
+        }
+
+    }
+}