ios - Tab bar controller push segue instead (Swift) -


i don't know how explain have tab bar controller , qr code scanner controller, how can make perform segue qr code scanner (exactly instagram camera, when u tap on camera icon, whole tab bar disappears , segue camera page) instead of tapping it. thank in advance reading this.

image of storyboard

  1. don't link qr scanner controller tabbar.
  2. link empty vc 3-d tab
  3. setup delegate tabbar controller
  4. implement method:

    public func tabbarcontroller(_ tabbarcontroller: uitabbarcontroller, shouldselect viewcontroller: uiviewcontroller) -> bool {     if tabbarcontroller.viewcontrollers!.last == viewcontroller {         // present vc         return false     }     return true } 

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