Random color generator for Flutter

Last update: Jun 13, 2022

Related tags

Overview

Random color generator

Pub link: https://pub.dartlang.org/packages/random_color

This library will generate random colors that are visually pleasing and can be customized by passing custom hue, saturation and brightness range. This allows it to generate just specific color with slight differences.

Blue colors:

Red colors:

Green:

Low saturation:

High saturation:

Light colors:

Dark colors:

Usage

Getting random color:

random color function can be called with parameters colorHue, colorSaturation and colorBrightness allowing for customization of colors the generator will pass.

import 'package:random_color/random_color.dart';

RandomColor _randomColor = RandomColor();

Color _color = _randomColor.randomColor();

Getting color name:

You can get color name from hex string (without # and alpha hex values) or from Color object

  Color _color = Color('FF0000'.toStringRadix(16));
  MyColor _myColor = getColorNameFromColor(_color);

  // Prints: 'Red'
  print(_myColor.getName);

Get just red colors:

Random color can generate just specific color type, as long hue, saturation and brightness are not too limiting this will still give rich result

import 'package:random_color/random_color.dart';

RandomColor _randomColor = RandomColor();

Color _color = _randomColor.randomColor(colorHue: ColorHue.red);

Get just red and blue colors:

You can combine multiple hue ranges to choose from

import 'package:random_color/random_color.dart';

RandomColor _randomColor = RandomColor();

Color _color = _randomColor.randomColor(
  colorHue: ColorHue.multiple([ColorHue.red, ColorHue.blue])
);

Get highly saturated colors:

import 'package:random_color/random_color.dart';

RandomColor _randomColor = RandomColor();

Color _color = _randomColor.randomColor(
  colorSaturation: ColorSaturation.highSaturation
);

Get light colors:

import 'package:random_color/random_color.dart';

RandomColor _randomColor = RandomColor();

Color _color = _randomColor.randomColor(
  colorBrightness: ColorBrightness.light
);

Tests

If you want to run the tests for this project under Flutter Dart

flutter pub pub run test

Comments

Support null safety

This is a request to add support for null safety to package:random_color. We depend on your awesome package, so would be great to have null safety enabled.

The Dart/Flutter team already encourages publishing the migrated packages: See this blog post.

See the migration guide for details about enabling null safety.

opened by IchordeDionysos 4
Error: Cannot run with sound null safety, because the following dependencies don't support null safety:

Hello i am trying to user this package but when i install dependicy then run the app it will show me this error as red line : (

Plz update

Error: Cannot run with sound null safety, because the following dependencies don't support null safety:

opened by nawzhin95 2
Null safety and pedantic analysis

Hi!

Thought I would move this over to null-safety. I had to remove the example lib and recreate it using flutter create again because there was some hefty manual changes that it was asking me to do otherwise. I also added analysis options so that things could be more consistent.

Let me know if this is unwelcome or if you want any changes. I tested example on android, iOS and web and all worked ok.

Thanks!

opened by Nolence 2
How can I make the color static?

I've just implemented this package on my app, but It keep changing its color. Please see this recording.

Is there any way to prevent this? *Please note that the Title field has nothing to do with the participant chips.

opened by pratamatama 2
pub get failed

[theapp] flutter packages get Running "flutter packages get" in theapp...
Because every version of flutter_test from sdk depends on test 1.3.0 and every version of random_color depends on test ^1.3.4, flutter_test from sdk is incompatible with random_color. So, because theapp depends on both random_color ^1.0.0 and flutter_test any from sdk, version solving failed.

pub get failed (1) exit code 1

opened by codeXLinkX 2
Getting random color from range

How would one generate random color from range using your library? The input is Color from and Color to.

I think a method like this would be very useful. Possibly, by using regular Color from dart:ui instead of some custom classes.

opened by itsJoKr 1
const, ==, hashCode, multiple

Made ColorSaturation const Made ColorBrightness const Made Range const (breaking change: addition doesn't mutate the range object anymore but returns a new Range) Added == & hashcode to ColorSaturation, ColorBrightness & Range Added multiple to ColorBrightness & ColorBrightnes.

opened by modulovalue 1
[Feature request] Random color palette

Hi 👋 it would be nice to have a way to generate a random color palette like randomColors except not by passing a single hue as argument, but passing hue min and hue max.

A good example here

Best regards.

opened by RichardFevrier 0