Question

我有一个IOS代码要在c＃中重写这个id<UIGestureRecognizerDelegate> gestureDelegate;

我怎样才能在c＃中重写它？

@property (weak, nonatomic) id<UIGestureRecognizerDelegate> gestureDelegate;

其实我声明它像UIGestureRecognizerDelegate gestureDelegate;但是它是对的吗？如果我理解正确，id就像C＃中的var一样？如果是这样我怎么能将它声明为类参数？

Answer 1

C＃interface与Objective-C中的protocol类似，id<UIGestureRecognizerDelegate>表示该对象实现UIGestureRecognizerDelegate中定义的方法。因此，C＃中的相同内容可能是（主要思想，未在IDE中测试）：

interface UIGestureRecognizerDelegate {
   public bool gestureRecognizerShouldBegin(UIGestureRecognizer gestureRecognizer);
}

class Example {
   public UIGestureRecognizerDelegate gestureDelegate; //the equivalent
}

符合界面的类：

public class ExampleViewController:UIViewController,UIGestureRecognizerDelegate {
   var example = Example();

   public ExampleViewController() {
       this.example.gestureDelegate = this;
   }

   //implements the methods of interface UIGestureRecognizerDelegate
   public bool gestureRecognizerShouldBegin(UIGestureRecognizer gestureRecognizer) {
       //......
   }
}

IOS到C＃相当于id＆lt;＆gt;

1 个答案: