ios - Force a layer not to rotate in a tabbar -

i have tabbar app. 1 of tabs has avcapturevideopreviewlayer, display in camera reading barcodes. when rotate screen, rotate (tabbar , image of camera). static image of camera (disable rotation) , tabbar rotating when rotate screen.

this how add layer of camera tabbar:

override func viewdidload() {      super.viewdidload()      view.backgroundcolor = uicolor.blackcolor()     self.capturesession = avcapturesession()      // object represents physical capture device , properties associated device     let videocapturedevice = avcapturedevice.defaultdevicewithmediatype(avmediatypevideo)     // useful capturing data input device     let videoinput: avcapturedeviceinput      {         videoinput = try avcapturedeviceinput(device: videocapturedevice)     } catch {         self.failed();         return     }      if (self.capturesession.canaddinput(videoinput)) {         self.capturesession.addinput(videoinput)     } else {         self.failed();         return;     }      let metadataoutput = avcapturemetadataoutput()      if (self.capturesession.canaddoutput(metadataoutput)) {         self.capturesession.addoutput(metadataoutput)          metadataoutput.setmetadataobjectsdelegate(self, queue: dispatch_get_main_queue())         metadataoutput.metadataobjecttypes = [avmetadataobjecttypeean8code, avmetadataobjecttypeean13code, avmetadataobjecttypepdf417code,             avmetadataobjecttypeupcecode, avmetadataobjecttypecode39code,             avmetadataobjecttypecode39mod43code, avmetadataobjecttypecode93code,             avmetadataobjecttypecode128code]     } else {         self.failed()         return     }      // adds preview layer display captured data. sets videogravity aspectfill covers full screen     self.previewlayer = avcapturevideopreviewlayer(session: self.capturesession);     self.previewlayer.frame = self.view.layer.bounds;     self.previewlayer.videogravity = avlayervideogravityresizeaspectfill;     self.view.layer.addsublayer(self.previewlayer)     self.capturesession.startrunning();  } 

stop rotation of view not layer.

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

this should work.