问

带自定义ListView的DialogFragment

Annfeliz 发布于 2023-02-13 10:37

dialog

我正在尝试创建一个DialogFragment,它显示一个带有自定义ListView的对话框.

public class MultiSelectDialogCustom extends DialogFragment {


    ListView mLocationList;
    private ArrayList mOfficeListItems = new ArrayList();


    public static MultiSelectDialogCustom newInstance(int title) {
        MultiSelectDialogCustom dialog = new MultiSelectDialogCustom();
        Bundle args = new Bundle();
        args.putInt("title", title);
        dialog.setArguments(args);
        return dialog;
    }

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

        Collections.addAll(mOfficeListItems, getResources().getStringArray(R.array.offices)); 
        View v = inflater.inflate(R.layout.fragment_choice_list, container,
                true);

        mLocationList = (ListView)v.findViewById(R.id.location_criteria_list);

        final FunctionListArrayAdapter adapter = new FunctionListArrayAdapter(
                this, android.R.layout.simple_list_item_1, mOfficeListItems);
        mLocationList.setAdapter(adapter);

        getDialog().setTitle(getArguments().getInt("title"));

        return v;
    }


}

从片段中调用时:

MultiSelectDialogCustom dialogFrag = MultiSelectDialogCustom_.newInstance(R.string.dialog_title);
dialogFrag.show(getActivity().getSupportFragmentManager(), null);

它只显示一个带有标题的空白对话框...为什么我的列表不显示？

1 个回答

而不是使用onCreateView你应该覆盖onCreateDialog它内部,它看起来像:

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    Collections.addAll(mOfficeListItems, getResources().getStringArray(R.array.offices)); 
    View v = getActivity().getLayoutInflater().inflate(R.layout.fragment_choice_list, null);

    mLocationList = (ListView)v.findViewById(R.id.location_criteria_list);

    final FunctionListArrayAdapter adapter = new FunctionListArrayAdapter(
            this, android.R.layout.simple_list_item_1, mOfficeListItems);
    mLocationList.setAdapter(adapter);

    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

    builder.setTitle(getArguments().getInt("title")).setView(v);

    return builder.create();
}

DialogFragment 文档页面中的引用描述了您要执行的操作:

实现应该覆盖此类并实现onCreateView(LayoutInflater, ViewGroup, Bundle)以提供对话框的内容.或者,他们可以覆盖onCreateDialog(Bundle)以创建完全自定义的对话框,例如AlertDialog,具有自己的内容.

在您的情况下,似乎onCreateDialog是要走的路,因为您想要自定义内部视图.

2023-02-13 10:39 回答

鄧淇-琪___106

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