ios - handleShortCutItem navigationBar inside a tabBar -

i trying implement 3d touch shortcuts app, i'm not sure how handle fact have navigation bar inside tab bar, if declare rootviewcontroller navigationbar shortcut works, when shortcut screen dismissed, have no tab bar. here how storyboard linked up, have no idea here.

i trying red.

@available(ios 9.0, *) func handleshortcutitem(shortcutitem: uiapplicationshortcutitem) -> bool {     var handled = false      if let shortcuttype = shortcuttype.init(rawvalue: shortcutitem.type) {          let tabbarcontroller = uitabbarcontroller()          let storyboard = uistoryboard(name: "main", bundle: nil)          let rootcontroller = storyboard.instantiateviewcontrollerwithidentifier("maintabbar") as! uitabbarcontroller          let tradesnav = storyboard.instantiateviewcontrollerwithidentifier("tradenavigation")   //            if self.window != nil {             self.window!.rootviewcontroller = rootcontroller  //            }           // root navigation view controller , first controller         let rootnavigationviewcontroller = window!.rootviewcontroller as? uinavigationcontroller         let rootviewcontroller = rootnavigationviewcontroller?.viewcontrollers.first uiviewcontroller?         // pop root view controller segue can handled          rootnavigationviewcontroller?.poptorootviewcontrolleranimated(true)          switch shortcuttype {         case .newtrade:             tradesnav.performseguewithidentifier("newtrademodal", sender: nil)             handled = true         }     }     return handled }