IOS to C# what is equivalent of id<>

Question

I got a IOS code to rewrite in c# that has this id<UIGestureRecognizerDelegate> gestureDelegate;

How can i rewrite this in c#?

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

Actually I declare it like UIGestureRecognizerDelegate gestureDelegate; but is it right? If i understand it right, id is like var in C#? If that's so how can i declare it as class parameters?

Answer 1

The C# interface is like protocol in Objective-C, id<UIGestureRecognizerDelegate> means the object implements the methods defined in UIGestureRecognizerDelegate. So the same thing in C# could be (main idea, not tested in IDE):

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

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

And a class which conforms to the interface:

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) {
       //......
   }
}