Android Jetpack Compose Color Picker 🎨

A component that provides two different HSV color pickers, written in Jetpack Compose.

1. ClassicColorPicker - Square picker with alpha channel
2. HarmonyColorPicker - Circular wheel with harmony modes (ie complementary, triadic, analogous, shades, monochromatic, tetradic)

https://user-images.githubusercontent.com/9973046/154516879-495a6816-9595-49b9-beaf-dafc2e1110ec.mp4

https://user-images.githubusercontent.com/9973046/154515203-f0818a14-3bb0-4e5a-91fc-f3cac2e2e770.mp4

How to get started

Add the dependency to your build.gradle file:

implementation 'com.godaddy.android.colorpicker:compose-color-picker:<latest-version>'

// with Android ColorInt extensions
implementation 'com.godaddy.android.colorpicker:compose-color-picker-android:<latest-version>'
// desktop jvm version
implementation 'com.godaddy.android.colorpicker:compose-color-picker-jvm:<latest-version>'

Add ClassicColorPicker to your Compose hierarchy:

import com.godaddy.android.colorpicker.HsvColor

Column {
    ClassicColorPicker(
        onColorChanged = { color: HsvColor ->
            // Do something with the color
        }
    )
}

Or add the HarmonyColorPicker to your Compose hierarchy for an HSV color wheel implementation:

 HarmonyColorPicker(
    harmonyMode = harmonyMode.value,
    modifier = Modifier.size(400.dp),
    onColorChanged = { color ->
        currentColor.value = color
        extraColors.value = color.getColors(colorHarmonyMode = harmonyMode.value)
})

The HarmonyColorPicker allows for you to set a certain ColorHarmonyMode on the wheel.
This will then display multiple magnifiers on top of the wheel for the different harmony modes: ie complementary, triadic, analogous, shades, monochromatic, tetradic.
If you wish to not display other magnifiers - set ColorHarmonyMode.NONE as your harmonyMode on the wheel.

ClassicColorPicker:

Customizing the control

Size

To change the size of the control, pass in the Modifier option:

import com.godaddy.android.colorpicker.HsvColor

ClassicColorPicker(
    modifier = Modifier.height(200.dp),
    onColorChanged = { color: HsvColor ->
        // Do something with the color
    }
)

Alpha

To hide the alpha bar, change the showAlphaBar parameter:

import com.godaddy.android.colorpicker.HsvColor

ClassicColorPicker(
    showAlphaBar = false,
    onColorChanged = { color: HsvColor ->
        // Do something with the color
    }
)

HarmonyColorPicker

Customizing the control

Harmony Mode

To change the harmony mode of the picker, pass in a different mode into the function:

HarmonyColorPicker(
    harmonyMode = ColorHarmonyMode.SHADES,
    modifier = Modifier.size(400.dp),
    onColorChanged = { color ->
               // do stuff with new color
})

Size

To change the size of the control, pass in the Modifier option:

import com.godaddy.android.colorpicker.HsvColor

HarmonyColorPicker(
    modifier = Modifier.height(200.dp),
    onColorChanged = { color: HsvColor ->
        // Do something with the color
    }
)

Library Contribution Information

Code Formatting

This project uses spotless to enforce code formatting. Run ./gradlew spotlessApply to run formatting before committing.

Releases

1. Update the version number in color-picker/build.gradle.kts
2. Make a PR into main and get that merged
3. Run "Deploy to Sonatype" GitHub Action.
4. Login to Sonatype and "Close" release. After a few minutes, click "Release".
5. Release should then be available for download on maven (might take like 30 min to propagate).