bubble.dart

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(),
        body: Row(children: [
          Expanded(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.end,
              children: [
                Material(
                  color: Colors.red,
                  child: Text("lsjdka sldkjflsk fjsklfj slkfjs flksfjl ajd"),
                ),
              ],
            ))
        ]),
      ),
    );
  }
}