Question

If I set only one right button on the NavBar it works perfectly.
But when I’m trying to set more than one button, they showed up, but clicking on them throws exceptions.

EventHandler pickPhotoClickHandler = (s,e) => {}; //Do nothing
var pickPhotoBtn = new UIBarButtonItem(UIBarButtonSystemItem.Camera, pickPhotoClickHandler);

EventHandler sendBtnClickHandler = (s, e) => {}; //Do nothing
var sendBtn = new UIBarButtonItem (UIBarButtonSystemItem.Done, sendBtnClickHandler);

NavigationItem.SetRightBarButtonItem (pickPhotoBtn, animated:true); // This works

var btns = new UIBarButtonItem[]{sendBtn,pickPhotoBtn}; // This doesn't 
NavigationItem.SetRightBarButtonItems(btns,true);       // go very far

What am I doing wrong?

Answer 1

I managed to fix that by creating new class derived from UIbarButtonItem and defining a constructor with IntPtr

public class UIBarBtn : UIBarButtonItem{
        public UIBarBtn(IntPtr handle):base(handle){}
        public UIBarBtn(UIBarButtonSystemItem si, EventHandler handler):base(si,handler){}
}

Now it works