                 }
                 self.cameraDevice.unlockForConfiguration()
             }
-
+            
             self.session.startRunning()
-
+            
             dispatch_async(dispatch_get_main_queue()) {
                 completion(error)
             }
         }
     }
-
+    
     private func cameraDeviceWithPosition(position: AVCaptureDevicePosition) -> AVCaptureDevice? {
         let availableCameraDevices = AVCaptureDevice.devicesWithMediaType(AVMediaTypeVideo)
         for device in availableCameraDevices as! [AVCaptureDevice] {

                // self.delegate?.cameraManager(self, didError: error)
                NSLog("failed to create capture device input")
            }


            self.stillImageOutput = AVCaptureStillImageOutput()
            self.stillImageOutput?.outputSettings = [
                AVVideoCodecKey  : AVVideoCodecJPEG,
                AVVideoQualityKey: 0.9
            ]

            if self.session.canAddOutput(self.stillImageOutput) {
                self.session.addOutput(self.stillImageOutput)
            }

            if self.cameraDevice.isFocusModeSupported(.ContinuousAutoFocus) {
                var configLockError: NSError?
                self.cameraDevice.lockForConfiguration(&configLockError)

            })
        }
    }
    
    func lockFocusAtPointOfInterest(pointInLayer: CGPoint) {
        let pointInCamera = previewLayer.captureDevicePointOfInterestForPoint(pointInLayer)
        self.lockCurrentCameraDeviceForConfiguration { cameraDevice in
