UIViewController.LoadViewIfNeeded 方法

定义

命名空间:

UIKit

程序集:

Xamarin.iOS.dll

如有必要，请从情节提要或 NIB 同步加载 View 。

[Foundation.Export("loadViewIfNeeded")]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 9, 0, ObjCRuntime.PlatformArchitecture.All, null)]
public virtual void LoadViewIfNeeded ();

abstract member LoadViewIfNeeded : unit -> unit
override this.LoadViewIfNeeded : unit -> unit

属性

ExportAttribute IntroducedAttribute

注解

如果 UIViewController 对象具有关联的 Storyboard 或 NIB，则此方法可用于确保View对象已实例化。 （另请参阅 ViewIfLoaded。）

var newVC = UIStoryboard.FromName("Main", NSBundle.MainBundle).InstantiateInitialViewController();
if (newVC.ViewIfLoaded == null)
{
    //This call blocks until the View is instantiated
    newVC.LoadViewIfNeeded();
}

另请参阅

• IsViewLoaded
• ViewDidLoad()
• View