ios - How to lock orientation just for one view controller? -

can set portrait orientation , lock orientation in 1 controller?

i did try:

override func supportedinterfaceorientations() -> int {     return int(uiinterfaceorientationmask.portrait.rawvalue) }  override func shouldautorotate() -> bool{     return false } 

but doesn't me. must add else?

this code should work:

    override func supportedinterfaceorientations() -> int {         return int(uiinterfaceorientationmask.portrait.rawvalue)     }      override func shouldautorotate() -> bool{         return false     }      override func preferredinterfaceorientationforpresentation() -> uiinterfaceorientation {         return uiinterfaceorientation.portrait     } 

if working you, suppose controller in controller(uinavigationcontroller, uitabbarcontroller, uisplitviewcontroller). in case need use code in parent controller.

if navigation controller contain more 1 view controller, , need disable orientation of them, need inherit uinavigationcontroller class , write there like:

class navigationcontroller: uinavigationcontroller {      var shouldrotate: bool = true      override func supportedinterfaceorientations() -> int {         return shouldrotate ? int(uiinterfaceorientationmask.portrait.rawvalue) : int(uiinterfaceorientationmask.all.rawvalue)     }      override func shouldautorotate() -> bool{         return shouldrotate     } } 

then in controller need disable orientation can disable navigation controller:

class viewcontroller: uiviewcontroller {      var lastcontrollerrotationstatus: bool?      override func viewwillappear(animated: bool) {         super.viewwillappear(animated)          if let navigationcontroller = self.navigationcontroller as? navigationcontroller {             lastcontrollerrotationstatus = navigationcontroller.shouldrotate             navigationcontroller.shouldrotate = false         }     }      override func viewdiddisappear(animated: bool) {         super.viewdiddisappear(animated)          if let navigationcontroller = self.navigationcontroller as? navigationcontroller {             navigationcontroller.shouldrotate = lastcontrollerrotationstatus ?? true         }     } } 

but remember, need restore old rotation status after controller pushed out navigation controller. in example i'm saving rotation status before changing it, , restoring after controller disappeared. can use other approach. example can overload uinavigationcontroller method popviewcontroller, , there set shouldrotate false.

the same approach variable setting controller can use controlling rotation appdelegate method application(application: uiapplication, supportedinterfaceorientationsforwindow window: uiwindow) -> int

then not need inherit navigation controller.

your appdelegate class code like:

class appdelegate: uiresponder, uiapplicationdelegate {      var window: uiwindow?      var shouldrotate = true     func application(application: uiapplication, supportedinterfaceorientationsforwindow window: uiwindow?) -> int {          return shouldrotate ? int(uiinterfaceorientationmask.all.rawvalue) : int(uiinterfaceorientationmask.portrait.rawvalue)      }  } 

and controller code like:

class viewcontroller: uiviewcontroller {      var lastcontrollerrotationstatus: bool?      override func viewwillappear(animated: bool) {         super.viewwillappear(animated)          if let appdelegate = uiapplication.sharedapplication().delegate as? appdelegate {             lastcontrollerrotationstatus = appdelegate.shouldrotate             appdelegate.shouldrotate = false         }     }      override func viewdiddisappear(animated: bool) {         super.viewdiddisappear(animated)          if let appdelegate = uiapplication.sharedapplication().delegate as? appdelegate {             appdelegate.shouldrotate = lastcontrollerrotationstatus ?? true         }     } }