/**
     * take a picture but check for camera permissions first
     */
    fun takePicture() {
        val permissionGranted = ActivityCompat.checkSelfPermission(activity, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED
        if  (permissionGranted) {
            openCamera()
        } else {
            ActivityCompat.requestPermissions(activity, arrayOf(Manifest.permission.CAMERA), CAMERA_PERMISSION_CODE)
        }
    }

    /**
     * Open the camera after obtaining the permission
     */
    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) {
        when (requestCode) {
            CAMERA_PERMISSION_CODE -> {
                if (grantResults.isEmpty() || grantResults[0] != PackageManager.PERMISSION_GRANTED) {
                    Log.i("CAMERA", "Permission has been denied by user")
                } else {
                    openCamera()
                    Log.i("CAMERA", "Permission has been granted by user")
                }
            }
        }
    }

    /**
     * Save the picture to the thumbnail after taking it
     */
    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        if (requestCode == CAMERA_REQUEST_CODE && resultCode == RESULT_OK) {
            try {
                //Getting the Bitmap from Gallery
                val bitmap = MediaStore.Images.Media.getBitmap(context.contentResolver, this.imageUri) as Bitmap
                this.imgThumb!!.setImageBitmap(bitmap)
                this.pictureTaken = true
            } catch (e:IOException) {
                e.printStackTrace()
            }
        } else {
            Toast.makeText(context, "Error loading image", Toast.LENGTH_LONG)
        }
    }

    @Throws(IOException::class)
    fun createImageFile(): File {
        val timeStamp: String = SimpleDateFormat("yyyyMMdd_HHmmss").format(Date())
        val imageFileName: String = "JPEG_" + timeStamp + "_"
        val storageDir: File = activity.getExternalFilesDir(Environment.DIRECTORY_PICTURES)
        if(!storageDir.exists()) storageDir.mkdirs()
        val imageFile = File.createTempFile(imageFileName, ".jpg", storageDir)
        imageFilePath = imageFile.absolutePath
        return imageFile
    }