标签: kotlin.notimplementederror

得到这个错误

kotlin.NotImplementedError:未实现操作:未实现

我正在实现一个ImageButton点击监听器

要求: - 我想对图像按钮单击执行操作,但得到上述错误

纠正我,如果有任何其他工作来实现imagebutton点击监听器,请提供它,谢谢

这是片段java类

class FragmentClass : Fragment(), View.OnClickListener {
    override fun onClick(v: View?) {
        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
        when (v?.id) {
            R.id.back_icon -> {
                Toast.makeText(activity, "back button pressed", Toast.LENGTH_SHORT).show()
                activity.onBackPressed()
            }

            else -> {
            }
        }
    }

    override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?,
                              savedInstanceState: Bundle?): View? {
        val view: View = inflater!!.inflate(R.layout.fragment_class, container,
                false)
        val activity = getActivity()
        var input_name = view.findViewById(R.id.input_name) as …