Add initial project structure with basic view models, views, and resources

CryptoPortfolio Tracker/App.axaml.cs

@@ -0,0 +1,43 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+using CryptoPortfolio_Tracker.ViewModels;
+using CryptoPortfolio_Tracker.Views;
+
+namespace CryptoPortfolio_Tracker;
+
+public partial class App : Application
+{
+    public override void Initialize()
+    {
+        AvaloniaXamlLoader.Load(this);
+#if DEBUG
+        this.AttachDeveloperTools();
+#endif
+    }
+
+    public override void OnFrameworkInitializationCompleted()
+    {
+        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+        {
+            desktop.MainWindow = new MainWindow();
+        }
+        else if (ApplicationLifetime is IActivityApplicationLifetime singleViewFactoryApplicationLifetime)
+        {
+            singleViewFactoryApplicationLifetime.MainViewFactory = () => new PageNavigationHost()
+            {
+                Page = new MainView { DataContext = new MainViewModel() }
+            };
+        }
+        else if (ApplicationLifetime is ISingleViewApplicationLifetime singleViewPlatform)
+        {
+            singleViewPlatform.MainView = new PageNavigationHost()
+            {
+                Page = new MainView { DataContext = new MainViewModel() }
+            };
+        }
+
+        base.OnFrameworkInitializationCompleted();
+    }
+}