Android--获取RecyclerView item（子控件）控件及数据

JSONArray array = new JSONArray();
                List<charge> chargesList = new ArrayList<>();
                Map<String, String> mDeviceHeaderMap = new HashMap<>();
                Map<String, String> mDeviceHeaderMap1 = new HashMap<>();
                for (int i = 0; i < rvCharge.getChildCount(); i++) {

                    RelativeLayout layout = (RelativeLayout) rvCharge.getChildAt(i);
                    CheckBox selectname = layout.findViewById(R.id.ck_peoplewater);
                    EditText rate = layout.findViewById(R.id.et_peoplewater);
                    EditText num = layout.findViewById(R.id.et_peoplewater1);
                    if (selectname.isChecked()){
                        charge c = new charge();
                        c.setName(selectname.getText().toString());
                        c.setRate(rate.getText().toString());
                        c.setTotal(num.getText().toString());
                        chargesList.add(c);

                        mDeviceHeaderMap.put(selectname.getText().toString(),rate.getText().toString());
                        mDeviceHeaderMap1.put(selectname.getText().toString(),num.getText().toString());

                    }

                }