MVVMCross iOS：当切换到不同的View模型时，如何将自定义转换绑定命令

对于MVVMCross iOS，我怎样才能使用不同的TransitionalStyle，如FlipHorizo​​ntal风格，而不是使用“ShowViewModel”的默认滑动效果？

[Register("SearchResults")] public class SearchResultsView : MvxTableViewController { public override void ViewDidLoad() { Title = "List"; base.ViewDidLoad(); var mapButton = new UIButton(new RectangleF(0, 0, 65, 30)); mapButton.SetBackgroundImage(UIImage.FromBundle("images/map_btn.png"), UIControlState.Normal); mapButton.TouchUpInside += MapButtonClicked(); var rightButton = new UIBarButtonItem(mapButton); NavigationItem.RightBarButtonItem = rightButton; var bindings = this.CreateBindingSet<SearchResultsView, SearchResultsViewModel>(); //bindings.Bind(mapButton).To(x => x.ShowMapCommand); //how to do with binding command? bindings.Apply(); } private EventHandler MapButtonClicked() { return (sender, args) => { var mapView = new SearchResultMapView {ModalTransitionStyle = UIModalTransitionStyle.FlipHorizontal}; var navigationController = new UINavigationController(mapView); PresentViewController(navigationController, true, null); }; } } 

Answer 1

ViewModels / Views使用Presenter呈现。

对于导航控制器的Modal显示器，有些人使用MvxModalNavSupportTouchViewPresenter.cs

您可以通过在设置中重写CreatePresenter来使用此演示者：

  protected override IMvxTouchViewPresenter CreatePresenter() { return new MvxModalNavSupportTouchViewPresenter(ApplicationDelegate, Window); } 

完成此操作后，您应该能够通过添加IMvxModalTouchViewinheritance并设置ModalTransitionStyle = UIModalTransitionStyle.FlipHorizontal; 在SearchResultMapView的构造函数中。

  public class SearchResultMapView : MvxViewController, IMvxModalTouchView { public SearchResultMapView() { ModalTransitionStyle = UIModalTransitionStyle.FlipHorizontal; } // more code here.... } 

或者，如果您想完全自定义视图/视图控制器的表示，那么实现自定义演示者是非常简单的 – 有关更多信息，请参阅http：// slodge中的自定义演示者的一些文章和教程。 blogspot.co.uk/2013/06/presenter-roundup.html

Answer 2

@翅膀

所有你需要做的是添加一个closuresbutton到推视图控制器的新视图，并覆盖它的touchupinside如下：

 private void CloseBtnTouchUpInside(object sender, EventArgs eventArgs) { DismissModalViewController(false); }