如何编辑单选按钮组的项目？

如何解决如何编辑单选按钮组的项目？

我有一个片段。我有一个列表 - 名为 Stops。有 3 个站点 - patia、SAILASHREE、niladri Vihar。 3 个停靠点显示在一个无线电组上。我从该单选按钮列表中进行选择。我选择 SAILAHREE，然后单击“编辑”按钮。现在该对话框已启动。在那里，我将“SAILASHREE”编辑为“sailashree vihar”。当我按 yes 时，屏幕上的文本不会从 SAILASHREE 更改为 Saiashree vihar。

之前：无线电组：
帕蒂亚
SAILASHREE
尼拉德里·维哈尔

之后：
帕蒂亚
Saishree Vihar
SAILASHREE
尼拉德里·维哈尔

需要：
帕蒂亚
Saishree Vihar
尼拉德里·维哈尔

代码：

public class PlusOneFragment extends Fragment {

    // TODO: Rename parameter arguments,choose names that match
    // the fragment initialization parameters,e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;
    static Context cntxt ;
    static List<String> Stops;
    static int count_stops;
    Button Edit,Add,Delete,Up,Bottom;
    String DialogResult;
    static StopActivity obj;
    public PlusOneFragment(Context c,int count_stopsArg,List<String>  StopsArg,StopActivity Arg) {
        // Required empty public constructor
        cntxt = c;
        count_stops = count_stopsArg;
        Stops = StopsArg;
        obj = Arg;
    }

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     * @param param1 Parameter 1.
     * @param param2 Parameter 2.
     * @return A new instance of fragment PlusOneFragment.
     */
    // TODO: Rename and change types and number of parameters
    public static PlusOneFragment newInstance(String param1,String param2) {
        PlusOneFragment fragment = new PlusOneFragment(cntxt,count_stops,Stops,obj);
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1,param1);
        args.putString(ARG_PARAM2,param2);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view = inflater.inflate(R.layout.fragment_first,container,false);
        //TextView tv= (TextView) view.findViewById(R.id.seat_serial_prefix);
        //tv.setText("yourText");
        Edit = (Button) view.findViewById(R.id.btn_edit) ;
        Add = (Button) view.findViewById(R.id.btn_add) ;
        Delete = (Button) view.findViewById(R.id.btn_delete) ;
        Up = (Button) view.findViewById(R.id.btn_up) ;
        Bottom = (Button) view.findViewById(R.id.btn_bottom) ;
        Up.setVisibility(View.GONE);
        Bottom.setVisibility(View.GONE);
        RadioGroup radiogroup = (RadioGroup) view.findViewById(R.id.radiogroup);
        // layout params to use when adding each radio button
        LinearLayout.LayoutParams layoutParams = new RadioGroup.LayoutParams(
                RadioGroup.LayoutParams.WRAP_CONTENT,RadioGroup.LayoutParams.WRAP_CONTENT);
        // add 20 radio buttons to the group
        for (int u = 0; u < count_stops; u++) {
            RadioButton newRadioButton = new RadioButton(cntxt);
            String label = Stops.get(u);
            newRadioButton.setText(label);
            newRadioButton.setId(u);
            radiogroup.addView(newRadioButton,layoutParams);
        }
        Edit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                RadioGroup radiogroup = (RadioGroup) view.findViewById(R.id.radiogroup);
                int a = radiogroup.getCheckedRadioButtonId();
                DialogResult = Stops.get(a);

                AlertDialog.Builder alertDialog = new AlertDialog.Builder(cntxt);
                alertDialog.setTitle("PASSWORD");
                alertDialog.setMessage("Enter Password");

                final EditText input = new EditText(cntxt);
                input.setText(DialogResult);
                LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                        LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.MATCH_PARENT);
                input.setLayoutParams(lp);
                alertDialog.setView(input);

                alertDialog.setPositiveButton("YES",new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,int which) {
                            DialogResult = input.getText().toString();
                            Stops.set(a,DialogResult);
                            radiogroup.removeViewAt(a);
                            RadioButton newRadioButton = new RadioButton(cntxt);
                            String label = DialogResult;
                            newRadioButton.setText(label);
                            newRadioButton.setId(a);
                            radiogroup.addView(newRadioButton,a);

                            }
                        });

                alertDialog.setNegativeButton("NO",int which) {
                                dialog.cancel();
                            }
                        });

                alertDialog.show();
            }

        });
        return view;
    }
}

解决方法

请尝试以下代码：

我在 1) 和 2) 处对我所做的更改发表了评论。

Edit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // 1)  No need to do the findview here
                
//                RadioGroup radiogroup = (RadioGroup) view.findViewById(R.id.radiogroup);
                int a = radiogroup.getCheckedRadioButtonId();
                DialogResult = Stops.get(a);

                AlertDialog.Builder alertDialog = new AlertDialog.Builder(cntxt);
                alertDialog.setTitle("PASSWORD");
                alertDialog.setMessage("Enter Password");

                final EditText input = new EditText(cntxt);
                input.setText(DialogResult);
                LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                        LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.MATCH_PARENT);
                input.setLayoutParams(lp);
                alertDialog.setView(input);

                alertDialog.setPositiveButton("YES",new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,int which) {
                                // 2) just get the view from that radio group and set new
                                // text to it. No need to remove and add view.
                                DialogResult = input.getText().toString();
                                Stops.set(a,DialogResult);
                                ((RadioButton) radiogroup.getChildAt(a)).setText(DialogResult);
                            }
                        });

                alertDialog.setNegativeButton("NO",int which) {
                                dialog.cancel();
                            }
                        });

                alertDialog.show();
            }

        });