MVVMCross iOS:切换到不同的视图模型时如何将命令与自定义转换绑定 [英] MVVMCross iOS: how to bind a command with Custom transition when switching to different View model

问题描述

对于 MVVMCross ios，如何使用不同的 TransitionalStyle，例如 FlipHorizo​​ntal 样式，而不是ShowViewModel"的默认滑动效果?

For MVVMCross ios, how can I use different TransitionalStyle such as FlipHorizontal style instead of the default sliding effect with "ShowViewModel"?

[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);
        };
    }
}

推荐答案

ViewModels/Views 使用 Presenter 呈现.

ViewModels/Views are presented using a Presenter.

对于导航控制器的模态显示，有些人使用 MvxModalNavSupportTouchViewPresenter.cs

For Modal displays of navigation controllers, some people use the MvxModalNavSupportTouchViewPresenter.cs

您可以通过在设置中覆盖 CreatePresenter 来使用此演示者:

You can use this presenter by overriding CreatePresenter in Setup:

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

完成此操作后，您应该能够通过添加 IMvxModalTouchView 继承并在 的构造函数中设置 ModalTransitionStyle = UIModalTransitionStyle.FlipHorizo​​ntal; 来实现过渡效果>SearchResultMapView.

With this done then you should be able to achieve your transition effect by adding IMvxModalTouchView inheritance and by setting ModalTransitionStyle = UIModalTransitionStyle.FlipHorizontal; in the constructor for your SearchResultMapView.

    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/视图控制器的呈现，那么实现自定义呈现器是相当简单的 - 有关更多信息，请参阅 http://slodge.blogspot.co.uk/2013/06/presenter-roundup.html

Alternatively, if you wanted to completely customise the presentation of the view/viewcontroller, then implementing a custom presenter is fairly straight-forward to do - for more information, see some of the articles and tutorials on custom presenters in http://slodge.blogspot.co.uk/2013/06/presenter-roundup.html

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