Flutter IntrinsicHeight demo.

main.dart

// Copyright (c) 2019, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            IntrinsicHeight(
              child: Row(
                children: <Widget>[
                  Container(
                    width: 100,
                    child: Text(
                      'Test Test Test Test Test Test Test Test Test Test Test Test Test Test Test Test Test Test Test Test Test',
                      maxLines: null,
                      overflow: TextOverflow.visible,
                    ),
                  ),
                  Expanded(
                    child: Container(
                      color: Colors.red,
                      child: Center(child: Text('Fit container through IntrinsicHeight')),
                    ),
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}