Android - 对话框中的微调器不会填充

Question

我正在尝试在对话框(弹出窗口)中添加两个微调器。我遇到的问题是填充微调器。我看不到任何错误，如果它在选项卡 fragment 而不是对话框中，则基本上相同的代码有效。

这是不填充对话框内微调器的代码。

public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

    LayoutInflater inflater = getActivity().getLayoutInflater();

    League league;

    league = ((LeagueMainActivity)getActivity()).getLeague();

    View v = inflater.inflate(R.layout.diaglog_add_match, null);

    Spinner spinner1 = (Spinner) v.findViewById(R.id.spinner_dialog_player1);
    Spinner spinner2 = (Spinner) v.findViewById(R.id.spinner_dialog_player2);

    String [] items = {"test 1", "test 2"};

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
            android.R.layout.simple_spinner_item, items);

    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

    Log.d("Spinner: ", "" + spinner1);

    spinner1.setAdapter(adapter);
    spinner2.setAdapter(adapter);

    builder.setView(inflater.inflate(R.layout.diaglog_add_match, null))
            .setTitle("Add match")
            .setPositiveButton("Create", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int id) {
                    // sign in the user ...
                }
            })
            .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    //LoginDialogFragment.this.getDialog().cancel();
                    /* do I really need to do anything??? */
                }
            });

    AlertDialog dialog = builder.create();
    return dialog;
}

这是在(带标签的) fragment 中工作的代码:

public class UnnamedFragment extends Fragment{
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View rootView = inflater.inflate(R.layout.fragment_unnamed, container, false);

    Spinner spinner1 = (Spinner) rootView.findViewById(R.id.spinner);

    String [] items = {"test 1", "test 2"};

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(),
            android.R.layout.simple_spinner_item, items);

    adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

    Log.d("Spinner: ", "" + spinner1);

    spinner1.setAdapter(adapter);

    return rootView;
}

Answer 1

好吧，我做错的是在相同的上下文中膨胀/创建两个独立的 View 。

首先我做了:

 View v = inflater.inflate(R.layout.diaglog_add_match, null);

然后:

builder.setView(inflater.inflate(R.layout.diaglog_add_match, null))

所以我将构建器的 View 设置为新 View ，而不是我用于微调器的 View 。因此，如果我这样做:

View v = inflater.inflate(R.layout.diaglog_add_match, null);
builder.setView(v)

这就是诀窍。