flutter AboutListTile widget

A ListTile that shows an about box.

This widget is often added to an app's Drawer. When tapped it shows an about box dialog with showAboutDialog.

The about box will include a button that shows licenses for software used by the application. The licenses shown are those returned by the LicenseRegistry API, which can be used to add more licenses to the list.

If your application does not have a Drawer, you should provide an affordance to call showAboutDialog or (at least) showLicensePage.

Implementation:

AboutListTile({Key key, Widget icon, Widget child, String applicationName, String applicationVersion, Widget applicationIcon, String applicationLegalese, List<Widget> aboutBoxChildren, bool dense})

Creates a list tile for showing an about box. [...]

const

Properties

aboutBoxChildren → List<Widget>

Widgets to add to the AboutDialog after the name, version, and legalese. [...]

final

applicationIcon → Widget

The icon to show next to the application name in the AboutDialog. [...]

final

applicationLegalese → String

A string to show in small print in the AboutDialog. [...]

final

applicationName → String

The name of the application. [...]

final

applicationVersion → String

The version of this build of the application. [...]

final

child → Widget

The label to show on this drawer item. [...]

final

dense → bool

Whether this list tile is part of a vertically dense list. [...]

final

hashCode → int

The hash code for this object. [...]

@nonVirtual, read-only, inherited

icon → Widget

The icon to show for this drawer item. [...]

final

Example Code:

// Flutter code sample for AboutListTile

// This sample shows two ways to open [AboutDialog]. The first one

// uses an [AboutListTile], and the second uses the [showAboutDialog] function.

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

/// This Widget is the main application widget.

class MyApp extends StatelessWidget {

  static const String _title = 'Flutter Code Sample';

  @override

  Widget build(BuildContext context) {

    return MaterialApp(

      title: _title,

      home: MyStatelessWidget(),

    );

  }

}

/// This is the stateless widget that the main application instantiates.

class MyStatelessWidget extends StatelessWidget {

  MyStatelessWidget({Key key}) : super(key: key);

  @override

  Widget build(BuildContext context) {

    final TextStyle textStyle = Theme.of(context).textTheme.bodyText2;

    final List<Widget> aboutBoxChildren = <Widget>[

      SizedBox(height: 24),

      RichText(

        text: TextSpan(

          children: <TextSpan>[

            TextSpan(

                style: textStyle,

                text: 'Flutter is Google’s UI toolkit for building beautiful, '

                    'natively compiled applications for mobile, web, and desktop '

                    'from a single codebase. Learn more about Flutter at '),

            TextSpan(

                style: textStyle.copyWith(color: Theme.of(context).accentColor),

                text: 'https://flutter.dev'),

            TextSpan(style: textStyle, text: '.'),

          ],

        ),

      ),

    ];

    return Scaffold(

      appBar: AppBar(

        title: Text('Show About Example'),

      ),

      drawer: Drawer(

        child: SingleChildScrollView(

          child: SafeArea(

            child: AboutListTile(

              icon: Icon(Icons.info),

              applicationIcon: FlutterLogo(),

              applicationName: 'Show About Example',

              applicationVersion: 'August 2019',

              applicationLegalese: '© 2014 The Flutter Authors',

              aboutBoxChildren: aboutBoxChildren,

            ),

          ),

        ),

      ),

      body: Center(

        child: RaisedButton(

          child: Text('Show About Example'),

          onPressed: () {

            showAboutDialog(

              context: context,

              applicationIcon: FlutterLogo(),

              applicationName: 'Show About Example',

              applicationVersion: 'August 2019',

              applicationLegalese: '© 2014 The Flutter Authors',

              children: aboutBoxChildren,

            );

          },

        ),

      ),

    );

  }

}