https://stackoverflow.com/questions/66840547/how-can-i-build-2-lined-listview-builder-in-flutter/66840778#66840778

main.dart

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return SizedBox(
      width: 500.0,
      child: Column(
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: ['English', 'Russian', 'Spanish']
                .map((language) => LanguageButton(
                      language: language,
                    ))
                .toList(),
          ),
          SizedBox(height: 20,),
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: ['Some really long language', 'French', 'German']
                .map((language) => LanguageButton(
                      language: language,
                    ))
                .toList(),
          ),
        ],
      ),
    );
  }
}

class LanguageButton extends StatelessWidget {
  final String language;

  const LanguageButton({Key? key, required this.language}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return OutlinedButton(
      style: OutlinedButton.styleFrom(
        shape: const RoundedRectangleBorder(
          borderRadius: BorderRadius.all(
            Radius.circular(30),
          ),
        ),
      ),
      onPressed: () {
        // TODO
      },
      child: Padding(
        padding: const EdgeInsets.symmetric(horizontal: 20.0, vertical: 8.0),
        child: Text(language),
      ),
    );
  }
}
import 'package:flutter/material.dart';

final Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData.dark().copyWith(scaffoldBackgroundColor: darkBlue),
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: Center(
          child: MyWidget(),
        ),
      ),
    );
  }
}

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return SizedBox(
      width: 500.0,
      child: Column(
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: ['English', 'Russian', 'Spanish']
                .map((language) => LanguageButton(
                      language: language,
                    ))
                .toList(),
          ),
          SizedBox(height: 20,),
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: ['Some really long language', 'French', 'German']
                .map((language) => LanguageButton(
                      language: language,
                    ))
                .toList(),
          ),
        ],
      ),
    );
  }
}

class LanguageButton extends StatelessWidget {
  final String language;

  const LanguageButton({Key? key, required this.language}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return OutlinedButton(
      style: OutlinedButton.styleFrom(
        shape: const RoundedRectangleBorder(
          borderRadius: BorderRadius.all(
            Radius.circular(30),
          ),
        ),
      ),
      onPressed: () {
        // TODO
      },
      child: Padding(
        padding: const EdgeInsets.symmetric(horizontal: 20.0, vertical: 8.0),
        child: Text(language),
      ),
    );
  }
}