flutter_brand_palettes 0.1.8

Set of declarative classes for the official color palettes of popular brands and companies. In addition, this package provides classes for the Material Design's color palettes, such as "Grey", "BlueGr [...]

example/lib/main.dart

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Brand Palette Demo',
      home: InstagramPalettePage(title: 'Instagram Palette Demo'),
    );
  }
}

class InstagramPalettePage extends StatelessWidget {
  const InstagramPalettePage({Key? key, required String title})
      : _title = title,
        super(key: key);

  final String _title;

  static final List<Color> _gradient = List.unmodifiable([
    const Instagram.lightYellow().color,
    const Instagram.yellow().color,
    const Instagram.orange().color,
    const Instagram.darkOrange().color,
    const Instagram.red().color,
    const Instagram.purpleRed().color,
    const Instagram.darkPink().color,
    const Instagram.purple().color,
    const Instagram.blue().color,
    const Instagram.royalBlue().color,
  ]);

  // Application's bar backgroud color.
  static const _greyish = Grey.veryLight();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: _greyish(), // could have been '_greyish.color'
        elevation: 2.0,
        title: GradientTitle(_title, _gradient),
      ),
      body: ListView(
        padding: const EdgeInsets.all(12),
        children: [
          _ColorItem.gradient('Gradient', colors: _gradient),
          _ColorItem('Light Yellow', _gradient[0]),
          _ColorItem('Yellow', _gradient[1]),
          _ColorItem('Orange', _gradient[2]),
          _ColorItem('Dark Orange', _gradient[3]),
          _ColorItem('Red', _gradient[4]),
          _ColorItem('Purple-Red', _gradient[5]),
          _ColorItem('Dark Pink', _gradient[6]),
          _ColorItem('Purple', _gradient[7]),
          _ColorItem('Blue', _gradient[8]),
          _ColorItem('Royal Blue', _gradient[9]),
        ],
      ),
    );
  }
}

/// Gradient colored text.
class GradientTitle extends StatelessWidget {
  /// Ctor.
  const GradientTitle(this._title, this._colors);
  final String _title;
  final List<Color> _colors;

  @override
  Widget build(BuildContext context) {
    return ListTile(
      title: Text(
        _title,
        style: TextStyle(
          fontStyle: FontStyle.italic,
          foreground: Paint()
            ..shader = LinearGradient(
              colors: _colors,
            ).createShader(const Rect.fromLTRB(0.0, 0.0, 200.0, 70.0)),
        ),
      ),
    );
  }
}

class _ColorItem extends StatelessWidget {
  /// Ctor. Color rectangle.
  _ColorItem(String label, Color color)
      : this.decoration(label, () => BoxDecoration(color: color));

  /// Ctor. Gradient rectangle.
  _ColorItem.gradient(String label, {required List<Color> colors})
      : this.decoration(
          label,
          () => BoxDecoration(
            gradient: LinearGradient(
              // begin: Alignment.topRight,
              // end: Alignment.bottomLeft,
              colors: colors,
            ),
          ),
        );
  const _ColorItem.decoration(this._label, this._boxDecoration);

  final String _label;
  final BoxDecoration Function() _boxDecoration;

  @override
  Widget build(BuildContext context) {
    return Card(
      child: Row(
        children: [
          Expanded(child: Text(_label, textAlign: TextAlign.center)),
          Expanded(
            flex: 5,
            child: Container(
                height: kToolbarHeight / 2, decoration: _boxDecoration()),
          ),
        ],
      ),
    );
  }
}