java - 如何在警报对话框中保存多选状态？

Question

我有一个代码，我创建了一个方法来显示带有多选选项的对话框，但是当检查并单击“确定”按钮时，状态未保存，我该怎么做？我看到了一些带有共享首选项的内容，但我无法在我的代码中实现它，有人可以帮助我吗？

 public View onCreateView(final LayoutInflater inflater, @Nullable ViewGroup container,
                         @Nullable Bundle savedInstanceState) {

    final View view =   inflater.inflate(R.layout.fragment_inseticida, container, false);


    gps = view.findViewById(R.id.imageButton);
        gps.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                showAlertDialog();
            }
        });



private void showAlertDialog (){
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        builder.setTitle("Habilitar GPS");

        String[] Gps = new String[]{
            "Habilitar GPS",

        };

        // Boolean array for initial selected items
        final boolean[] checkedgps = new boolean[]{
            true, // GPS

        };

        // Convert the color array to list
        final List<String> gpsList = Arrays.asList(Gps);

        builder.setMultiChoiceItems(Gps, checkedgps, new DialogInterface.OnMultiChoiceClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i, boolean b) {


                checkedgps[i] = b;

                String CurrentItem  = gpsList.get(i);

                Toast.makeText(getActivity(),CurrentItem +  " " + b,Toast.LENGTH_SHORT).show();



            }
        });
        builder.setCancelable(false);

        builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {

            }
        });

        AlertDialog dialog = builder.create();
        // Display the alert dialog on interface
        dialog.show();

}

Answer 1

检查this所以回答。

使用loadArray检索final boolean[]checkedgps中最初的数据以及 storeArray 在 public void onClick(...)

中按下时保存数据