swift - Tab Bar mysteriously disappears? -


attached 2 images. first shows current main.storyboard, , second shows problem when run app. have tab bar controller has 2 tabs. on first tab there button. when pressed, button goes view controller content. @ top navigation bar button. after viewing content, press button, , on original page button, tab bar missing. have seen few answered questions, appears made tab bar in view controller instead of storyboard. says should never return previous view unless use unwind segue. true? if so, how set unwind segue. if not, how fix problem otherwise? thank you. http://i.stack.imgur.com/iymx2.png http://i.stack.imgur.com/7slt5.png

the problem in wiring of viewcontrollers. have embedded uitabbarcontroller inside uinavigationcontroller , not other way around.

a correct layout looks in interface builder :

layout in interface builder

to reproduce:

  • in interface builder drop uitabbarcontroller. come 2 uiviewcontroller's wired in.
  • pick 1 of uiviewcontroller's (let's call vcontroller1) , click on editor / embed in / navigation controller. wires vcontroller1 live inside uinavigationcontroller inside uitabbarcontroller
  • add 3rd uiviewcontroller next vcontroller1 let's call vcontroller3
  • wire in segue between vcontroller1 , vcontroller3, example button.

i hope that's clear enough


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