Flutter ButtonBar儿童尺寸

Question

我正在Flutter上开发应用程序，并且我想使用FROM python:3 USER root SHELL ["/bin/bash", "-c"] RUN mkdir /code WORKDIR /code COPY requirements/base.txt /code/ COPY source/backend/ /code/ ENV PYTHONUNBUFFERED 1 ENV DJANGO_SETTINGS_MODULE=mydjangoapi.settings.base RUN pip install -r base.txt && \ python manage.py makemigrations && \ python manage.py migrate EXPOSE 8000 ENTRYPOINT ["/bin/bash", "-c", "gunicorn --bind 0.0.0.0:8000 mydjangoapi.wsgi"] 。但是，当试图让孩子利用空间时，按钮仅利用最小空间

ButtonBar

任何想法如何获得按钮以利用更多空间

Answer 1

您可以使用ButtonTheme属性编辑按钮大小

Raised buttons have a minimum size of 88.0 by 36.0 which can be overridden with ButtonTheme.

第二，

您可以尝试使用Expanded小部件包装按钮

        Padding(
          padding: const EdgeInsets.all(8.0),
          child: ButtonBar(
            mainAxisSize: MainAxisSize.max,
            alignment: MainAxisAlignment.center,
            children: <Widget>[
              Expanded(
                child: RaisedButton(
                  child: Text('Save'),
                  onPressed: () {
                    Navigator.push(context,
                        MaterialPageRoute(builder: (context) => OtpPage()));
                  },
                ),
              ),
            ],
          ),
        ),