使用 UISegementedControl 切换到不同的 UITableViewControllers [英] Switching to different UITableViewControllers with UISegementedControl

问题描述

我在导航栏中有一个带有 UISegmentedControl 的 UINavigationViewController.我想实现一个简单的切换到不同的ViewControllers 当用户按下分段控件时.

I've an UINavigationViewController with an UISegmentedControl in the navigation bar. I want to achieve a simple switching to different ViewControllers when users push on the segmented control.

我尝试了很多，但没有任何效果...考虑来源:

I've tried a lot and nothing works... Considered sources:

• MonoTouch 为 ContainerView 以编程方式实例化 ViewController
• https://stackoverflow.com/search?q=viewcontroller+intptr+handle 立>
• 还有很多谷歌研究...

整个项目都是基于故事板的！任何针对 NIB 的解决方案都没有用.

The whole project is storyboard based! Any solutions which targets NIB's aren't useful.

将 ContainerControl 添加到我的 UINavigationViewController.但在这种情况下，我只能嵌入一个控制器.以编程方式创建 Embedded-Segue 是不可能的.甚至在 IB 中设计的代码中实例化 UITableViewController 会导致空视图.因为我必须将 c'tor 从 MyTableViewController(IntPtr handle) : base(handle) 更改为空构造函数.

Adding a ContainerControl to my UINavigationViewController. But in this case I can only embed one controller. Creating a Embedded-Segue programmatically was not possible. Even more instantiating a UITableViewController in code which is designed in IB results in an empty view. Because I've to change the c'tor from MyTableViewController(IntPtr handle) : base(handle) to an empty constructor.

有人可以发布一个如何使用 UISegmentedControl 在不同 ViewController 之间切换的工作示例吗?非常感谢您的帮助.

Can someone publish a working example how to use a UISegmentedControl to switch between different ViewControllers? I appreciate all your help very much.

推荐答案

工作解决方案:

    public override void ViewDidLoad ()
    {
        base.ViewDidLoad ();

        CreateAndEmbed (TrDetailNavType.Info);
    }

    partial void segmentNavigationValueChanged (MonoTouch.UIKit.UISegmentedControl sender, MonoTouch.UIKit.UIEvent e)
    {
        CreateAndEmbed((TrDetailNavType)sender.SelectedSegment);
    }

    private void CreateAndEmbed(TrDetailNavType tab)
    {
        if (_currentViewController != null) 
        {
            _currentViewController.View.RemoveFromSuperview ();
            _currentViewController.RemoveFromParentViewController();
        }

        string id;
        switch (tab)
        {
        case TrDetailNavType.Info:
            id = "TagesRapportDetailInfoTableViewController";
            break;
        case TrDetailNavType.Lohn:
        case TrDetailNavType.Material:
        case TrDetailNavType.Inventar:
        case TrDetailNavType.Fremdleistung:
        case TrDetailNavType.Regie:
            id = "TagesRapportDetailDummyViewController";
            break;
        }

        _currentViewController = (UIViewController)Storyboard.InstantiateViewController (id);
        _currentViewController.View.Frame = containerDetail.Bounds;
        AddChildViewController (_currentViewController);
        _currentViewController.DidMoveToParentViewController (this);
        containerDetail.AddSubview (_currentViewController.View);
    }

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