UIDocumentInteractionControllerDelegate_Extensions.WillBeginPreview 方法

定义

指示文档预览即将开始。

public static void WillBeginPreview (this UIKit.IUIDocumentInteractionControllerDelegate This, UIKit.UIDocumentInteractionController controller);
static member WillBeginPreview : UIKit.IUIDocumentInteractionControllerDelegate * UIKit.UIDocumentInteractionController -> unit

参数

This
IUIDocumentInteractionControllerDelegate

此扩展方法操作的实例。

适用于