在基础碎片上检测底部对话框片段的关闭

Question

我有一个包含列表的recycleview的fragment。在fragment中，我调用另一个底部弹出框dialog fragment，我想知道当我关闭这个底部弹出框dialog fragment时，如何刷新基础fragment中的列表。

我已经尝试了在基础fragment中使用onPause和onResume方法。请帮我解决这个问题。

- Thushara

Answer 1

当对话框片段被关闭时，将触发此方法。要在对话框片段中覆盖此方法。

@Override
public void onDismiss(@NonNull DialogInterface dialog) {
    super.onDismiss(dialog);
    // use interface to callback method in base fragment
}

- Arul

---

你能给我一些例子吗？ - Thushara

https://androidwave.com/fragment-communication-using-interface/ - Arul

Answer 2

我不确定，但是我尝试了下面的代码，它有效。

 @Override
public void dismiss() {
    super.dismiss();
    ((MyActivity)context).myRefreshFunction();// 
}

- Mehrdad

Answer 3

调用BottomSheetDialogFragment 在点击事件中打开buttomSheetDialgFragment

class GuestFragment : Fragment(){
        .
        .
        .
        .

        override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
            super.onViewCreated(view, savedInstanceState)
            binding.tvInfo.setOnClickListener {
                val dialogFragment = BottomSheetDogGiveReviewFragment(requireContext(),data.ratingData,data)
                // call back method
                dialogFragment.setOnBottomSheetDismissListener  {
                    resumeFragment()
                }
                dialogFragment.show(parentFragmentManager, "My  Fragment")
            }


        }

    }

在BottomSheetDialogFragment中

class BottomSheetDogGiveReviewFragment(context: Context) : BottomSheetDialogFragment() {
        //this is binding xml file
        private var _binding : FragmentBottomSheetDogGiveReviewBinding?=null
        private val binding get() = _binding!!
        
        //make this listener through call over Fragment mehod
        private var onDismissListener: (() -> Unit)? = null
        fun setOnBottomSheetDismissListener(listener: () -> Unit) {
            onDismissListener = listener
        }
        override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
            // Inflate the layout for this fragment
            _binding = FragmentBottomSheetDogGiveReviewBinding.inflate(inflater, container, false)
            val view = binding.root
            return view
        }
        override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
            super.onViewCreated(view, savedInstanceState)


            //button click
            binding.tvSubmit.setOnClickListener {
                ....
                ..
                dialog!!.dismiss()
                onDismissListener?.invoke()
            }
        }

        //dialog them
        override fun getTheme(): Int {
            return  R.style.CustomBottomSheetDialog
        }
    }

// 底部弹出对话框主题 // 在您的themes.xml文件中添加主题

//buttom sheet dialog style
        <style name="CustomBottomSheetDialog" parent="@style/ThemeOverlay.MaterialComponents.BottomSheetDialog">
            <item name="bottomSheetStyle">@style/CustomBottomSheet</item>
        </style>

- sajid