关于android:flutter样式

//  服务页 item
Widget _buildGridService() {
  return Scaffold(
      appBar: AppBar(
        elevation: 8.0, // 暗影的高度
        title: Text('便民服务'),
        backgroundColor: MyColors.color_red,
        centerTitle: true, // 题目是否居中，默认为 false
      ),
      body: Center(
          child: GridView.extent(
        // 禁止滚动
        physics: new NeverScrollableScrollPhysics(),
        // 横轴的最大长度
        maxCrossAxisExtent: 150.0,
        padding: const EdgeInsets.all(5.0),
        // 主轴距离 纵轴
        mainAxisSpacing: 1.0,
        // 横轴距离 次轴
        crossAxisSpacing: 4.0,
        semanticChildCount: 3,
        children: _buildGridTileList(serviceList),
      )));
}

List<Container> _buildGridTileList(List<MyService> list) {
  return new List.generate(
      list.length,
      (int index) => new Container(
            child: new GestureDetector(onTap: () {print("--- 点击了：" + serviceList[index].text);
                Navigator.push(
                    context,
                    new MaterialPageRoute(builder: (context) => new ServiceWebPage(from: serviceList[index].text)));
              },
              child: Column(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: <Widget>[
                  Image.asset(list[index].iconImage,
                    width: 50.0,
                    height: 50.0,
                    fit: BoxFit.fill,
                  ),
                  new Container(padding: EdgeInsets.only(top: 5.0),
                    child: new Text(list[index].text,
                      style: new TextStyle(fontSize: 14.0,),
                    ),
                  )
                ],
              ),
            ),
          ));
}