How to use Align widget in Flutter

In this Google flutter code example we are going to learn how to use Align widget in Flutter.

You can copy and adopt this source code example to your android project without reinventing the wheel.

The comments on the code provide more detailed explanation

The code is based on flutter version 1 and 2.

Main.dart (App entry point)

import 'package:flutter/material.dart';
import 'align.dart';

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Align Widget',
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        // This is the theme of your application.
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
      home: BasicAlign(),


import 'package:flutter/material.dart';

class BasicAlign extends StatelessWidget {
  //this lets you arbitrarily position a child within itself, rather than just centering it.
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text("Align Widget")),
      body: Align(
        //use the alignment property to specify the position to align the child
        //here, we align it bottomLeft
        //also, heightFactor and widthFactor properties are available to specify the widgets height or width relative to the child
        alignment: Alignment.bottomLeft,
        child: Container(height: 50.0, width: 50.0, color:,

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