如何使用MvvmCross框架使用MonoDroid TabActivity

           android:label="@string/app_name"

           android:theme="@style/MyTheme">

   <intent-filter>

       <action android:name="android.intent.action.MAIN" />

       <category android:name="android.intent.category.LAUNCHER" />

   </intent-filter>

   public class MainViewModel : MvxViewModel

   {

       private readonly List<TodoItem> _todoItems;

       public MainViewModel()

       {

           _todoItems = new List<TodoItem>

           {

               new TodoItem { Description = "Task 1", IsDone = false },

               new TodoItem { Description = "Task 2", IsDone = true },

               new TodoItem { Description = "Task 3", IsDone = false }

           };

       }

       public override void Cleanup()

       {

           _todoItems.Clear();

           base.Cleanup();

       }

       public ObservableCollection<TodoItem> TodoItems => _todoItems;

   }

   public class TodoItem

   {

       public string Description { get; set; }

       public bool IsDone { get; set; }

   }

   public class MainView : MvxActivity

   {

       public MainView()

       {

           SetContentView(Resource.Layout.Main);

       }

       protected override void OnCreate(Bundle savedInstanceState)

       {

           base.OnCreate(savedInstanceState);

           SetContentView(Resource.Layout.Main);

           var viewModel = new MainViewModel();

           SetViewModel(viewModel);

       }

   }