This library is a port of two different Color Picker implementations.
Color Picker by attenzione, android-ColorPickerPreference and the color picker from the Android SDK samples found in samples\android-(yourApiLevel)\ApiDemos\src\com\example\android\apis\graphics\ColorPickerDialog.java
You can grab the latest version from NuGet:
Install-Package Cheesebaron.ColorPickers
The package is also mirrored here on GitHub https://github.com/Cheesebaron/Cheesebaron.ColorPickers/packages
See the Sample for usage.
You can either use the predefined dialogs or you can use the color picker views as is.
Simple circle color picker from Android SDK:
Advanced color picker without alpha control:
Advanced color picker with alpha control:
The license is Apache 2.0