Question

我在这里做错了什么？在扩充Layout之后，我试图在DialogFragment onCreateDialog中实例化EditText。注意：EditText已经是在setView中膨胀的LinearLayout的一部分。

public class UserEntryDialogFragment extends DialogFragment {

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {

    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    LayoutInflater inflater = getActivity().getLayoutInflater();
    builder.setView(inflater.inflate(R.layout.entry_dialog, null));

//        EditText userEntryEditText;
//        userEntryEditText = userEntryEditText.findViewById(R.id.entryDialogEditText); - may not have been initalized
//        final EditText userEntryEditText = (EditText) userEntryEditText.findViewById(R.id.entryDialogEditText); - variable may not have been initiized
//        final EditText = new EditText(); - not a valid constructor
//        final EditText = new (EditText) userEntryEditText.findViewById(R.id.entryDialogEditText); - cannot resolve symbol userEntryText
//        EditText userEntryEditText = new userEntryEditText.findViewWithTag("edittexttag"); - findViewWithTag not a method
//        inflater.inflate(R.id.entryDialogEditText, null); - requires a layout argument

    userEntryEditText.requestFocus();

其他代码......

同样，我想要一个EditText，然后我可以将其用于getText。我希望你能帮忙。

谢谢你们。

Answer 1

由于您在创建对话时没有做任何特别的事情，我建议您删除覆盖代码，然后使用此代码剪切。

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.entry_dialog, container, false);
    EditText ev = (EditText) v.findViewById(R.id.editTextId);
    return v;
}

所以要么删除上面的代码，要么将其替换为：

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    return super.onCreateDialog(savedInstanceState);
}

如何在dialogFragment中初始化edittext

1 个答案: