Monotouch Events

本文关键字：Events Monotouch | 更新日期: 2023-09-27 18:13:35

我正在尝试使用MonoTouch运行以下代码:

this.TouchesBegan += delegate { txtAmount.ResignFirstResponder(); };

当我编译时，我得到以下错误:

Cannot assign to `TouchesBegan' because it is a `method group'

API似乎支持这个:http://docs.xamarin.com/ios/advanced_topics/api_design

任何想法?

Monotouch Events

我猜你用的是UIGestureRecognizer，对吗?

如果是，那么' TouchesBegan'是一个方法而不是一个事件，所以你不能给它分配委托。

    public virtual void TouchesBegan (NSSet touches, UIEvent evt)

你可能想看看:

    public UITouchEventArgs ShouldReceiveTouch;
    public UIGesturesProbe ShouldRecognizeSimultaneously;
    public UIGestureProbe ShouldBegin;

和Touches_GestureRecognizers示例。