最近在学习flutter,但是总是感觉记忆失败,所以做下笔记以备后用,供需要的人用
//生成方式
body: new GridView.builder(
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 3,//每行显示几个
childAspectRatio: 4/5,//宽高比
),
itemCount: productName.length,//item的个数
itemBuilder: (BuildContext context,int index){
//自定义的行 代码在下面
return _showGridViewItem(context, productName[index], index);
},
),
Widget _showGridViewItem(BuildContext context,String title,int count) {
return InkWell(//用inkWell是为了添加点击事件
onTap: (){
Scaffold.of(context).showSnackBar(
SnackBar(content: Text('$count')));
},
child: new Container(
//给个0.5宽的边框
decoration: BoxDecoration(
border: Border.all(
color: Colors.grey,
width: 0.5,
),
),
child: new Column(
children: <Widget>[
//一个图标
new Container(
padding: EdgeInsets.only(top: 20),
child: new Icon(
Icons.account_circle,
size: 80,
),
),
//一个文本
new Container(
padding: EdgeInsets.only(top: 10),
child: new Text(
title,
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 16,
),
),
),
],
),
),
);
}