uinavigationcontroller – 构造MonoTouch.Dialog应用程序

你做：

1)从那里创建一个DialogViewController并树上每个视图/ RootElement,

2)为每个视图创建一个DialogViewController,并使用UINavigationController并根据需要推送它

根据你的答案,更好的反应是怎样的？我已经构建了示例任务应用程序,所以我了解向表中添加元素,单击它以转到“下一个”视图进行编辑,但是如何点击进行非编辑？如何点击一个按钮,如果答案是1,请去下一个视图？

修订：

可能没有一个正确的答案,但是我想出来的似乎对我们有用.来自上面的第2号是所选择的,下面是当前存在的代码示例.我们所做的是在AppDelegate中创建一个导航控制器,并在整个应用程序中访问它,如下所示：

public partial class AppDelegate : UIApplicationDelegate
{
    public UIWindow window { get; private set; }
    //< There's a Window property/field which we chose not to bother with

    public static AppDelegate Current { get; private set; }
    public UINavigationController NavController { get; private set; }

    public override bool FinishedLaunching (UIApplication app,NSDictionary options)
    {
        Current = this;
        window = new UIWindow (UIScreen.MainScreen.Bounds);
        NavController = new UINavigationController();

        // See About Controller below
        DialogViewController about = new AboutController();
        NavController.PushViewController(about,true);

        window.RootViewController = NavController;
        window.MakeKeyAndVisible ();
        return true;
    }
}

那么每个Dialog都有一个这样的结构：

public class AboutController : DialogViewController
{
    public delegate void D(AboutController dvc);
    public event D ViewLoaded = delegate { };

    static About about;
    public AboutController()
        : base(about = new About())
    {
        Autorotate = true;
        about.SetDialogViewController(this);
    }

    public override void LoadView()
    {
        base.LoadView();
        ViewLoaded(this);
    }
}

public class About : RootElement
{
    static AboutModel about = AboutVM.About;

    public About()
        : base(about.Title)
    {
        string[] message = about.Text.Split(...);
        Add(new Section(){
            new AboutMessage(message[0]),new About_Image(about),new AboutMessage(message[1]),});
    }

    internal void SetDialogViewController(AboutController dvc)
    {
        var next = new UIBarButtonItem(UIBarButtonSystemItem.Play);
        dvc.NavigationItem.RightBarButtonItem = next;
        dvc.ViewLoaded += new AboutController.D(dvc_ViewLoaded);
        next.Clicked += new System.EventHandler(next_Clicked);
    }

    void next_Clicked(object sender,System.EventArgs e)
    {
        // Load next controller
        AppDelegate.Current.NavController.PushViewController(new IssuesController(),true);
    }

    void dvc_ViewLoaded(AboutController dvc)
    {
        // Swipe location: https://gist.github.com/2884348
        dvc.View.Swipe(UISwipeGestureRecognizerDirection.Left).Event +=
            delegate { next_Clicked(null,null); };            
    }
}

根据需要创建一个子类的元素：

public class About_Image : Element,IElementSizing
{
    static Nsstring skey = new Nsstring("About_Image");
    AboutModel about;
    UIImage image;

    public About_Image(AboutModel about)
        : base(string.Empty)
    {
        this.about = about;
        FileInfo imageFile = App.LibraryFile(about.Image ?? "filler.png");
        if (imageFile.Exists)
        {
            float size = 240;
            image = UIImage.FromFile(imageFile.FullName);
            var resizer = new ImageResizer(image);
            resizer.Resize(size,size);
            image = resizer.ModifiedImage;
        }
    }

    public override UITableViewCell GetCell(UITableView tv)
    {
        var cell = tv.DequeueReusableCell(skey);
        if (cell == null)
        {
            cell = new UITableViewCell(UITableViewCellStyle.Default,skey)
            {
                SelectionStyle = UITableViewCellSelectionStyle.None,Accessory = UITableViewCellAccessory.None,};
        }
        if (null != image)
        {
            cell.ImageView.ContentMode = UIViewContentMode.Center;
            cell.ImageView.Image = image;
        }
        return cell;
    }

    public float GetHeight(UITableView tableView,NSIndexPath indexPath)
    {
        float height = 100;
        if (null != image)
            height = image.Size.Height;
        return height;
    }

    public override void Selected(DialogViewController dvc,UITableView tableView,NSIndexPath indexPath)
    {
        //base.Selected(dvc,tableView,path);
        tableView.deselectRow(indexPath,true);
    }
}

@miquel

目前的工作流概念是一个应用程序,它以Default.png的jpg开始,该JPG可以逐渐进入第一个视图,并具有可以移动到主应用程序的流控制按钮.这个观点,我曾经在M.T.D. (MonoTouch.Dialog),它是具有图像的文本行的表.当每一行被单击时,它将移动到具有行/文本的另一个视图.

该应用程序还支持应用内购买,所以如果客户希望购买更多的产品,然后切换到另一个视图来处理购买.这部分是切换到M.T.D.的主要原因,正如我认为M.T.D.将是完美的.

最后,会有一个设置视图来重新启用购买等.

PS如何知道应用程序何时未被最小化？我们想再次显示褪色.