ios - One controller in landscape orientation -

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i have app, consists of 1 tab bar controller contains 4 navigation controllers. can't find solution have 1 controller in hierarchy of navigation controllers in landscape mode. other controllers suppose portrait. appreciate on issue.

in viewdidload(): of navigation controller want landscape, include: 

let value = uiinterfaceorientation.landscapeleft.rawvalue uidevice.currentdevice().setvalue(value, forkey: "orientation")

be sure add following override too

override func shouldautorotate() -> bool {     return true }

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