xamarin.ios 代码中设置启动的 Storyboard

 AppDelegate 添加如下代码

uinavroot 为故事版 UINavigationController 中的定义，需要在 xcode ide中定义。

public override bool FinishedLaunching (UIApplication application, NSDictionary launchOptions)

{
Window = new UIWindow (UIScreen.MainScreen.Bounds);
UIStoryboard sb = UIStoryboard.FromName ("MainStoryboard",null);
UINavigationController nai = sb.InstantiateViewController ("uinavroot") as UINavigationController;
Window.RootViewController = nai;
Window.MakeKeyAndVisible ();


return true;
}