java - 选择一个复选框后禁用 ListView 中的所有复选框

Question

在MainActivity中，我有ListView，带有自定义单选Checkboxes，每个项目都有一个复选框，并且它们通过自定义适配器类设置为列表。如果用户选中一项，则弹出对话框，其中包含选择确认，接受后所有复选框均应被禁用，但目前仅禁用所选行中的一个。如何禁用所有并阻止用户更改选择的可能性？

适配器

public class CustomAdapter extends BaseAdapter implements CompoundButton.OnCheckedChangeListener {


    SparseBooleanArray mCheckStates;
    private List<CustomClass> customList;
    private Context context;
    private LayoutInflater inflater;
    private int selectedPosition = -1;
    private Dialog dialog;


    public CustomAdapter(Context _context, List<CustomClass> _customList) {
        inflater = LayoutInflater.from(_context);
        this.customList = _CustomList;
        this.context = _context;
        mCheckStates = new SparseBooleanArray(customList.size());
    }


    @Override
    public int getCount() {
        return customList.size();
    }

    @Override
    public Object getItem(int i) {
        return i;
    }

    @Override
    public long getItemId(int i) {
        return i;
    }

    @Override
    public View getView(int i, View view, ViewGroup viewGroup) {

       CustomClass customClass = customList.get(i);

        if (view == null)
            view = inflater.inflate(R.layout.custom_list, null);


        TextView name = (TextView) view.findViewById(R.id.tv_name);
        CheckBox checkBox = (CheckBox) view.findViewById(R.id.checkbox);

        checkBox.setTag(i);
        checkBox.setChecked(mCheckStates.get(i, false));
        checkBox.setOnCheckedChangeListener(this);
        checkBox.setChecked(false);

        if (i == selectedPosition) {
            checkBox.setChecked(true);
        } else {
            checkBox.setChecked(false);
        }

        checkBox.setOnClickListener(onStateChangedListener(checkBox, i));


        name.setText(customClass.getName());


        return view;

    }

    private View.OnClickListener onStateChangedListener(final CheckBox checkBox, final int position) {
        return new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (checkBox.isChecked()) {
                    selectedPosition = position;

                    dialog =  new Dialog(context);
                    dialog.setTitle("Accept");
                    dialog.setContentView(R.layout.dialog_accept);
                    dialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
                        @Override
                        public void onCancel(DialogInterface dialogInterface) {

                        }
                    });
                    dialog.show();

                    Button btnAccept = (Button) dialog.findViewById(R.id.btnVote);

                    btnAccept.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View view) {
                            checkBox.setEnabled(false);
                            dialog.dismiss();
                        }
                    });


                } else {
                    selectedPosition = -1;

                }
                notifyDataSetChanged();
            }
        };
    }


    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {


        mCheckStates.put((Integer) buttonView.getTag(), isChecked);
        notifyDataSetChanged();


    }

自定义类:

    public class CustomClass{

    String name;

    public CustomClass(){}

    public CustomClass(String name){
    this.name = name;
    }

    public String getName(){return name;}
    public void setName(String name){this.name = name;}

}

MainActivity只设置了ListView和Adapter

Answer 1

将所有复选框包含在一组中，以便只能选择一个复选框。