🎨 A tiny (Kotlin) library for generating attractive colors

Related tags

Colors android kotlin color-picker
Overview

RandomKolor

🎨 A tiny (Kotlin) library for generating attractive colors

Inspired by David Merfield's randomColor.js. You can use the library to generate attractive random colors on Android apps.

This project comes with a sample app which demonstrates some of the functionality:

Installation

The library is hosted on JitPack

  1. Add it in your root build.gradle at the end of repositories:
allprojects {
  repositories {
    ...
    maven { url 'https://jitpack.io' }
  }
}
  1. Add the dependency
dependencies {
    implementation 'com.github.brian-norman:RandomKolor:1.0'
}

Options

  • hue – Controls the hue of the generated color. You can pass in a color: Color.RED, Color.ORANGE, Color.YELLOW, Color.Green, Color.BLUE, Color.Purple, Color.PINK and Color.MONOCHROME are currently supported.
  • luminosity – Controls the luminosity of the generated color. Library supports: Luminosity.RANDOM, Luminosity.BRIGHT, Luminosity.LIGHT, Luminosity.DARK
  • count – An integer which specifies the number of colors to generate.

API

fun randomColor(hue: Hue = RandomHue, luminosity: Luminosity = Luminosity.RANDOM, format: Format = Format.RGB): String
fun randomColors(count: Int, hue: Hue = RandomHue, luminosity: Luminosity = Luminosity.RANDOM, format: Format = Format.RGB): List<String>

Examples

// Generate an attractive RGB randomly
val rgbString = RandomKolor().randomColor()
// Generate a light blue RGB 
val rgbString = RandomKolor().randomColor(hue = ColorHue(BLUE), luminosity = Luminosity.LIGHT)
// Generate three light blue oranges
val rgbStrings = RandomKolor().randomColors(count = 3, hue = ColorHue(ORANGE), luminosity = Luminosity.LIGHT)

Acknowledgements

TODO

  • Currently only RGB is supported, would like to support other formats
  • Add alpha to RGB
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Comments
  • [Improved] Better way to clamp the hue value

    [Improved] Better way to clamp the hue value

    Instead of manually checking if value == 0 or 360, you can use Kotlin's coerceIn extension function to automatically clamp the value between the specified range.

    opened by KaustubhPatange 0
  • Feature request: publish the library to mavenCentral()

    Feature request: publish the library to mavenCentral()

    I would prefer to be able to fetch the library from mavenCentral() instead of having to add jitpack.io as additional repository.

    Any reason why is not published there? I know that it's a little tricky to publish something there but, if you need help, I have already published a library and I could provide support: https://github.com/leinardi/FloatingActionButtonSpeedDial/

    opened by leinardi 0
  • better hsv to rgb maybe.

    better hsv to rgb maybe.

    I have found a better way to convert the color from hsv to rgb.maybe.

    in the method setFormat, it call the HSVtoRGB method to convert to rgb. then I get a method from android.graphics.color that names Color.HSVToColor() image then I try to use the method to calculate the color. and it turn out to be the same result : the test code: image the test result pick one: image

    so I think we should use the method from android.graphics.color priority

    opened by qihigh 0
Owner
Brian Norman
Android Engineer @SeatGeek
Brian Norman
GitHub
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