Question

我正在开发一个Xamarin IOS / monotouch项目。一段时间以来，我一直坚持这个错误。这些是代码行

var prfc = this.Storyboard.InstantiateViewController ("testController") as testController;
            if (prfc != null) {
                this.PresentViewController(prfc,false,null);}

我尝试重命名viewcontroller，清理和构建解决方案，删除viewcontroller并添加一个具有其他名称的新控件我确保所有拼写都是正确的，我有相同的Viewcontroller名称，StoryBoardID和Restoration ID。这就是我在Designer partial class

中注册我的viewcontroller的方法

[Register ("testController")]
partial class testController

这是我的appdelegate.cs代码`[注册（＆＃34; AppDelegate＆＃34;）]公共部分类AppDelegate：UIApplicationDelegate {//类级声明UIWindow窗口; public static UIStoryboard Storyboard = UIStoryboard.FromName（＆＃34; MainStoryboard＆＃34;，null）; public static UIViewController initialViewController; public override UIWindow Window {get;组; }

`[Register ("AppDelegate")] public partial class AppDelegate : UIApplicationDelegate { // class-level declarations UIWindow window; public static UIStoryboard Storyboard = UIStoryboard.FromName ("MainStoryboard", null); public static UIViewController initialViewController; public override UIWindow Window { get; set; }
// This method is invoked when the application is about to move from active to inactive state.
// OpenGL applications should use this method to pause.
public override void OnResignActivation (UIApplication application)
{
}

// This method should be used to release shared resources and it should store the application state.
// If your application supports background exection this method is called instead of WillTerminate
// when the user quits.
public override void DidEnterBackground (UIApplication application)
{
}

// This method is called as part of the transiton from background to active state.
public override void WillEnterForeground (UIApplication application)
{
}

// This method is called when the application is about to terminate. Save data, if needed.
public override void WillTerminate (UIApplication application)
{
}
public override void FinishedLaunching (UIApplication application)
{
    window = new UIWindow (UIScreen.MainScreen.Bounds);

    initialViewController = Storyboard.InstantiateInitialViewController () as UIViewController;

    window.RootViewController = initialViewController;
    window.MakeKeyAndVisible ();
    return ;
}

}`

我已尝试过各种可能性但无法解决此问题。我添加到Storyboard的每个新viewcontroller都会出现此错误。当我调用InstantiateViewController时，我得到一个null。我尝试过清洁和重建。它适用于模拟器，但不适用于设备

Answer 1

@orkenstein指出了这个问题。我的目标是7.1，而是在7.0设备上进行测试

StoryBoard.InstantiateViewController在Interface Builder文件中给出“Unknown class testController”

1 个答案: