Flutter Column Tutorial

Flutter Column

Flutter Column widget is used to display its widgets in a vertical array.

In this tutorial, we will get introduced to Column class, and how to use it to display a Column layout in our Application.

Syntax

The syntax to display a Column widget with children is shown in the following.

Column(
  children: const <Widget>[
    //some widgets
  ],
)

Example

In the following Flutter Application, we shall display a Column widget with four children widgets of which two are Text widgets and two are Icon widgets. We shall wrap the Column widget in a Center widget to display the column at the centre of the screen along horizontal axis.

main.dart

import 'package:flutter/material.dart';

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

/// main application widget.
class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  static const String _title = 'Flutter Tutorial';

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      title: _title,
      home: MyStatefulWidget(),
    );
  }
}

/// stateful widget that the main application instantiates
class MyStatefulWidget extends StatefulWidget {
  const MyStatefulWidget({Key? key}) : super(key: key);

  @override
  State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
}

/// private State class that goes with MyStatefulWidget
class _MyStatefulWidgetState extends State<MyStatefulWidget> {

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Column Widget Tutorial'),
      ),
      body: Center(
          child: Column(
            children: const <Widget>[
              Text('Text 1', style: TextStyle(fontSize: 24.0),),
              Text('Text 2', style: TextStyle(fontSize: 24.0),),
              Icon(
                Icons.beach_access,
                color: Colors.pink,
                size: 30.0,
              ),
              Icon(
                Icons.audiotrack,
                color: Colors.green,
                size: 30.0,
              ),
            ],
          )
      ),
    );
  }
}

Screenshot – Android Emulator

Screenshot – iPhone Simulator

Conclusion

In this Flutter Tutorial, we learned how to display a Column widget in our Flutter Application, with examples.