         }
     }
     
-    open func hidesControlView () {
+    @objc open func hidesControlView () {
         self.isNavigationBarHidden = true
         self.statusBar?.alpha = 0
         self.contentVC?.setFooterViewHidden(true, animated: false)

        }
    }
    
    open func showsControlView () {
        self.isNavigationBarHidden = false
        self.statusBar?.alpha = 1
        self.contentVC?.setFooterViewHidden(false, animated: false)

        }
    }
    
    @objc open func toggleControlView() {
        if self.isNavigationBarHidden {
            self.showsControlView()
        } else {
