SliverGrid

sample.packages.flutter.lib.src.rendering.sliver_grid.279.

Here is an example using the [childAspectRatio] property. On a device with a screen width of 800.0, it creates a GridView with each tile with a width of 200.0 and a height of 100.0.

  
import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  static const String _title = 'Flutter Code Sample';

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: _title,
      home: Scaffold(
        appBar: AppBar(title: const Text(_title)),
        body: const MyStatelessWidget(),
      ),
    );
  }
}

class MyStatelessWidget extends StatelessWidget {
  const MyStatelessWidget({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return GridView(
      gridDelegate: const SliverGridDelegateWithFixedCrossAxisCount(
        crossAxisCount: 4,
        childAspectRatio: 0.5,
      ),
      children: List.generate(20, (int i) {
        return Builder(builder: (BuildContext context) {
          return Text('$i');
        });
      }),
    );
  }
}