ios - How to change TabBar items Navigation Title -


i'm facing problem ! have been struggling days ! problem i'm not able change title of navigation in tabbar items.

first i'm pushing uitabbarviewcontroller app delegate if user signed in.

let currentuser = pfuser.currentuser()         if currentuser != nil {             let mainstoryboardipad : uistoryboard = uistoryboard(name: "main", bundle: nil)             let homeview : uiviewcontroller = mainstoryboardipad.instantiateviewcontrollerwithidentifier("4")              let navigationcontroller = application.windows[0].rootviewcontroller as! uinavigationcontroller             navigationcontroller.pushviewcontroller(homeview, animated: false)         } else {          }

then in first item viewcontroller i'm using change titleview image example.

let logo = uiimage(named: "logo.png") let imageview = uiimageview(image:logo) self.navigationcontroller!.topviewcontroller!.navigationitem.titleview = imageview

and in second item viewcontroller i'm using change title again.

self.navigationcontroller!.topviewcontroller!.navigationitem.titleview = nil  self.navigationcontroller!.topviewcontroller!.navigationitem.title = "second"

but when go first item should see image set, instead see title of second item view controller

replace

self.navigationcontroller!.topviewcontroller!.title = "mes contacts"

with

self.navigationcontroller!.topviewcontroller!.navigationitem.title = "mes contacts"

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