RecyclerViewAdapter 删除了滚动上的填充内容

Question

我将 RecyclerViewAdapter 用于我的 json adaper.i 以编程方式在 RecyclerViewAdapter 中制作一些单选按钮、复选框和编辑文本，但是当我检查某些单选按钮或输入编辑文本并滚动超过 1 个屏幕时，当我回来时，所有填充内容都被删除；

public class MyRecyclerViewAdapter extends RecyclerView.Adapter<MyRecyclerViewAdapter.ViewHolder> {

    public MyRecyclerViewAdapter(Context context, ArrayList<HashMap<String, Object>> hash_all) {

    }

    @Override
    public int getItemCount() {
        return hash_all.size();
    }

    @SuppressLint("SetTextI18n")
    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {

        hash_all.size();

       hash_get = hash_all.get(position);



        LinearLayoutCompat.LayoutParams params = new LinearLayoutCompat.LayoutParams(
                LinearLayoutCompat.LayoutParams.MATCH_PARENT,
                LinearLayoutCompat.LayoutParams.WRAP_CONTENT
        );
        params.setMargins(0, 0, 0, 0);

        String s = hash_get.get("ModelShowOption").toString();
        String toggle = "";
        String direc = "";
        String type = "";
        String model = "";
        String rows = "";
        String resize = "";
        String[] split = s.split("\\|");

        String[] split2 = new String[0];
        for (int i = 0; i < split.length; i++) {
            String s2 = split[i];
            split2 = s2.split(":");
            if (split2[0].equals("isToggleButton")){
                toggle=split2[1];
            }else if (split2[0].equals("type")){
                type=split2[1];
            }else if (split2[0].equals("direction")){
                direc=split2[1];
            }else if (split2[0].equals("model")){
                model=split2[1];
            }else if (split2[0].equals("rows")){
                rows=split2[1];
            }else if (split2[0].equals("resize")){
                resize=split2[1];
            }

        }

        String title = hash_get.get("title").toString();

        String myValue =hash_get.get("MyValue").toString();
        String[] splitValue = myValue.split("\\|");

        RadioGroup[] rg;
        RadioButton[] rb;

        if (toggle.equals("true") && holder.row_list_title.getText().equals("")){
            holder.row_list_placeholder.setVisibility(View.GONE);
            holder.row_list_buttn.setVisibility(View.GONE);

            String multiValue = hash_get.get("MultiValue").toString();
            String[] splitMultiValue = multiValue.split(":");
            if (splitMultiValue[1].equals("1")){

            int p = 0;
            rg = new RadioGroup[1];
            rb = new RadioButton[splitValue.length];
            rg[0] = new RadioGroup(holder.row_list_placeholder.getContext());
            rg[0].setOrientation(RadioGroup.VERTICAL);
            for (int j = 0; j < splitValue.length; j++) {

                    String myValue2 = splitValue[j];
                    String[] splitValue2 = myValue2.split("=");
                    rb[j] = new RadioButton(getApplicationContext());
                    rg[p].addView(rb[j]);
                    rb[j].setId(j);
                    rb[j].setText(splitValue2[0]);

            }

            holder.linearLayoutCheckBox.addView(rg[p]);

            p++;

            holder.row_list_title.setText(title);

            if (rg[0].getCheckedRadioButtonId() == -1) {

            } else {
                for (int r = 0; r < splitValue.length; r++) {
                    if (rb[r].isChecked()) {
                        RadioButton id = (RadioButton) findViewById(rb[r].getId());
                        String radioText = id.getText().toString();

                    }
                }
            }

            }else{

                holder.row_list_title.setText(title);

                CheckBox[] ch;
                final int[] checkd = {0};
                List<String> checkvl = new ArrayList<>();
                ch = new CheckBox[splitValue.length];

                    for (int j = 0; j < splitValue.length; j++) {


                        String myValue2 = splitValue[j];
                        String[] splitValue2 = myValue2.split("=");
                        ch[j] = new CheckBox(getApplicationContext());
                        holder.linearLayoutCheckBox.addView(ch[j]);
                        ch[j].setId(j);
                        ch[j].setText(splitValue2[0]);

                    }


                for (int r = 0; r < splitValue.length; r++) {
                    int finalR = r;
                    int finalR1 = r;
                    ch[r].setOnCheckedChangeListener((buttonView, isChecked) -> {
                        if (isChecked) {
                            if (checkd[0] < Integer.parseInt(splitMultiValue[1])){


                                //checkvl.add(ch[finalR1].getText().toString());
                                //hash_all_string.get(position).remove("value");
                                //hash_all_string.get(position).put("value", String.valueOf(checkvl));

                                //CheckBox id = findViewById(ch[finalR].getId());
                                //String CheckBoxText = id.getText().toString();
                                //Log.e("CheckBoxString", CheckBoxText);
                                checkd[0] = checkd[0] +1;

                            }else{

                                ch[finalR].setChecked(false);

                            }

                        } else {
                            ch[finalR].setChecked(false);
                            checkd[0] = checkd[0] -1;

                            //checkvl.remove(ch[finalR1].getText().toString());
                            //hash_all_string.get(position).remove("value");
                            //hash_all_string.get(position).put("value", String.valueOf(checkvl));
                        }
                    });
                }
            }

        }else{
            if (myValue.equals("NULL")){
                holder.row_list_title.setText(title);
                holder.row_list_placeholder.setVisibility(View.VISIBLE);
                holder.row_list_buttn.setVisibility(View.GONE);
                holder.row_list_placeholder.setHint(hash_get.get("placeholder").toString());
                if (type.equals("Text")){
                    holder.row_list_placeholder.setInputType(InputType.TYPE_CLASS_TEXT);
                }else if(type.equals("Int")){
                    holder.row_list_placeholder.setInputType(InputType.TYPE_CLASS_NUMBER);
                }else if(type.equals("Float")){
                    holder.row_list_placeholder.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL);
                }
            }else {

                holder.row_list_placeholder.setVisibility(View.GONE);
                holder.row_list_buttn.setVisibility(View.VISIBLE);
                holder.row_list_title.setText(title);


                int selct = 0;

                    for (int j = 0; j < hash_all2.size(); j++) {

                        if (hash_all2.get(j).get("selected").equals("true")) {

                            selct = selct+1;

                        }
                    }

                    if (selct>0){
                        holder.row_list_buttn.setBackgroundColor(getResources().getColor(R.color.purple_500));
                        holder.row_list_buttn.setText("انتخاب شد");
                    }else{
                        holder.row_list_buttn.setText("انتخاب کنید");
                        holder.row_list_buttn.setBackgroundColor(getResources().getColor(R.color.teal_200));
                    }



                String multiValue = hash_get.get("MultiValue").toString();
                String[] splitMultiValue = multiValue.split(":");


                holder.row_list_buttn.setOnClickListener(v -> {

                        if (hash_all2.size() == 0) {

                            for (int j = 0; j < splitValue.length; j++) {
                                HashMap<String, String> hash_add2 = new HashMap<>();

                                String myValue2 = splitValue[j];
                                String[] splitValue2 = myValue2.split("=");

                                hash_add2.put("Id", String.valueOf(j));
                                hash_add2.put("name", String.valueOf(splitValue2[0]));
                                hash_add2.put("value", String.valueOf(splitValue2[1]));
                                hash_add2.put("selected", "false");
                                hash_add2.put("max", splitMultiValue[1]);

                                hash_all2.add(hash_add2);

                            }
                            adapt.notifyDataSetChanged();
                        }

                        alertDialogSelect(position);
                    });

            }
        }




    }



    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = ((LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.row_form, parent, false);
        return new ViewHolder(view);
    }

    public class ViewHolder extends RecyclerView.ViewHolder {
        TextView row_list_title;
        EditText row_list_placeholder;
        LinearLayout linearLayoutCheckBox;
        Button row_list_buttn;



        ViewHolder(View itemView) {
            super(itemView);

            row_list_title = itemView.findViewById(R.id.row_list_title);
            row_list_placeholder = itemView.findViewById(R.id.row_list_placeholder);
            linearLayoutCheckBox = itemView.findViewById(R.id.mainrow);
            row_list_buttn = itemView.findViewById(R.id.row_list_buttn);

        }
    }
}

请帮助。我尝试了堆栈中的许多代码但不起作用

holder.setIsRecyclable(false); setHasStableIds(true);

这对我不起作用

Answer 1

在 RecyclerView 中，当删除视图的滚动状态并通过滚动创建新视图时，

您必须在 radioButton 或 edittext 内容更改时更改数据，并在模型中设置新数据。