java - AlertDialog在DialogFragment中不起作用

Question

我对DialogFragment中的'onCreateDialog'有问题

fmonday.java代码（P.S .：我删除了一些代码以使其更短）：

public class fmonday extends DialogFragment implements LoaderManager.LoaderCallbacks<Cursor> {
final int DIALOG_ITEMS = 1;
final CharSequence[] items = {"1", "2", "3"};
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);  
}


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fmonday, container, false);
    Button button12 = (Button) rootView.findViewById(R.id.button12);
    button12.setOnClickListener(new View.OnClickListener()
    {
        @Override
        public void onClick(View v)
        {
            getActivity().showDialog(DIALOG_ITEMS);
        }
    });
}
@Override //Error is on this line
  protected Dialog onCreateDialog(int id) {
    switch (id) {
        case DIALOG_ITEMS:
            AlertDialog.Builder adb = new AlertDialog.Builder(getActivity());
            adb.setTitle("Adding class");
            adb.setItems(items, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int item) {
                    Toast.makeText(getActivity().getApplicationContext(),
                            "Your choice: " + items[item],
                            Toast.LENGTH_SHORT).show();
                }
            });
            adb.setCancelable(false);
            return adb.create();
        default:
            return null;
    }
}

日志猫：


  错误：（88，5）错误：方法未覆盖或从超类型实现方法


如何解决呢？

Answer 1

AlertDialog.Builder adb = new AlertDialog.Builder(ActivityName.this);
....
return adb.create();

代替

AlertDialog.Builder adb = new AlertDialog.Builder(getActivity());
....
return adb.create();

我认为这对您有帮助。