Swift: Take photo button action

takephoto.swift

@IBAction func takePhoto(sender: UIButton) {
        
        let imagePicker: UIImagePickerController! = UIImagePickerController()
        imagePicker.delegate = self
        
        if (UIImagePickerController.isSourceTypeAvailable(.Camera)) {
            if UIImagePickerController.availableCaptureModesForCameraDevice(.Front) != nil {
                imagePicker.allowsEditing = false
                imagePicker.sourceType = .Camera
                imagePicker.cameraCaptureMode = .Photo
                imagePicker.cameraDevice = .Front
                imagePicker.modalPresentationStyle = .OverCurrentContext
                presentViewController(imagePicker, animated: true, completion: {})
            } else {
                print("Camera not found")
            }
        } else {
            print("Application cannot access the camera.")
        }
    }

Try presenting using something other than over current context