[Flutter] Flexible, Expanded

Flexible import 'package:flutter/material.dart'; void main() { runApp(MyApp()); } class MyApp extends StatelessWidget { // This widget is the root of your application. @override Widget build(BuildContext context) { return MaterialApp( home: Row( children: [ BlueBox(), Flexible( fit: FlexFit.loose, flex: 1, child: BlueBox(), ) ], ), ); } } class BlueBox extends StatelessWidget { @override Widget .....