ios - Swift - navigation buttons show & hide -


running weird issue , couldn't find how fix it. have tab bar controller based app 3 view controllers (2 table view controllers , 1 regular vc), profile, orders, people. when sign in, land on profile , buttons in nav bar show properly. go people , come back, buttons disappear , don't show anymore. vice versa true (going people profile).

this additional weird part: if go profile orders, back, show buttons. if go profile orders people, people shows normally.

here structure:

enter image description here

in viewdidload , viewwillappear, add following code:

let editbutton = uibutton()         editbutton.frame = cgrectmake(0, 0, 60, 35)         editbutton.settitle("edit profile ", forstate: .normal)         editbutton.settitlecolor(uicolor.bluecolor(), forstate: .normal)         editbutton.addtarget(self, action: selector("editbuttonpressed"), forcontrolevents: .touchupinside)         let leftbarbutton = uibarbuttonitem()         leftbarbutton.customview = editbutton         self.tabbarcontroller?.navigationitem.leftbarbuttonitem = leftbarbutton

and in viewwilldisappear, add:

self.tabbarcontroller?.navigationitem.leftbarbuttonitem = nil self.tabbarcontroller?.navigationitem.rightbarbuttonitem = nil

all except orders table view controller doesn't have of above code. going on? happy provide more if needed, there far understand.

you can try this:

1.show:

self.navigationitem.rightbarbuttonitem?.customview?.alpha = 1.0

2.hide:

self.navigationitem.rightbarbuttonitem?.customview?.alpha = 0.0

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