即使在指定Container GridView的高度之后,我的代码仍在生成方形小部件。
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => new _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
List<String> widgetList = ['A', 'B', 'C'];
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
title: new Text(widget.title),
),
body: new Container(
child: new GridView.count(
crossAxisCount: 2,
controller: new ScrollController(keepScrollOffset: false),
shrinkWrap: true,
scrollDirection: Axis.vertical,
children: widgetList.map((String value) {
return new Container(
height: 250.0,
color: Colors.green,
margin: new EdgeInsets.all(1.0),
child: new Center(
child: new Text(
value,
style: new TextStyle(fontSize: 50.0,color: Colors.white),
),
),
);
}).toList(),
),
),
);
}
}
上面代码的输出如左图所示。如何获得带有自定义高度小部件的GridView,如右图所示?