content: import 'package:flutter/material.dart';
  
  void main() => runApp(GridViewDefaultWidget());
  
  class GridViewDefaultWidget extends StatelessWidget {
    @override
    Widget build(BuildContext context) {
      return MaterialApp(
        title: 'Test',
        home: Scaffold(
            appBar: AppBar(title: new Text('Flutter 可滚动Widget -- GridView')),
            body: GridView(
              gridDelegate:
                  SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 3),
              children: <Widget>[
                ListTile(title: Text('Title1')),
                ListTile(title: Text('Title2')),
                ListTile(title: Text('Title3')),
                ListTile(title: Text('Title4')),
                ListTile(title: Text('Title5')),
                ListTile(title: Text('Title6')),
                ListTile(title: Text('Title7')),
                ListTile(title: Text('Title8')),
                ListTile(title: Text('Title9')),
                ListTile(title: Text('Title10')),
                ListTile(title: Text('Title11')),
                ListTile(title: Text('Title12')),
                ListTile(title: Text('Title13')),
                ListTile(title: Text('Title14')),
                ListTile(title: Text('Title15')),
                ListTile(title: Text('Title16')),
                ListTile(title: Text('Title17')),
                ListTile(title: Text('Title18')),
                ListTile(title: Text('Title19')),
              ],
            )),
      );
    }
  }
  