关于android:flutter样式

//  服务页itemWidget _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,                      ),                    ),                  )                ],              ),            ),          ));}