小编Dah*_*Dah的帖子

我正在尝试使用Flutter,并且当前正尝试在对话框的列表视图中显示输入字段和下拉列表.但是,我得到的下拉式溢出了视图的水平宽度并导致黄灰色条纹图案(如下所示)

ListView中的DropdownButton小部件溢出

代码是:

    class DataInput extends StatefulWidget {

      @override
      State createState() => new DataInputState("");
    }


    enum DismissDialogAction {
      cancel,
      discard,
      save,
    }

    class DataInputState extends State<DataInput> {
      final String _data;
      static const types = const <Map<String, String>>[
        const {
          "id": "103",
          "desc": "0001 - lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum"
        },
        const {
          "id": "804",
          "desc": "0002 - lorem ipsum lorem ipsum"
        },
      ];

      DataInputState(this._data);

      @override
      Widget build(BuildContext context) {
        final ThemeData …