class OrderInfoFragment : BaseDialogFragment() { private lateinit var mOrderItem: OrderItem override fun onCreateDialog(savedInstanceState: Bundle?): Dialog { val inflater = activity.layoutInflater val binding = DataBindingUtil.inflate( inflater, R.layout.fragment_order_info, null, false) val view = binding.root binding.item = mOrderItem } i tryed: 1) @BindingAdapter("bind:photoFilePath") fun loadPhotoFilePath(imageView: ImageView, path: String) { } 2) companion object { @BindingAdapter("bind:photoFilePath") fun loadPhotoFilePath(imageView: ImageView, path: String?) { } } }