Android color picker - updating color array

Question

I\'m trying to create a color picker for Android that looks like a minimalistic version of Gimp\'s. So, it has a hue slider and a rectangle with saturation/value variants of

Answer 1

Can this be applied to an image color picker as well?

Use case:

1. Select a particular pixel on an image.
2. The pixel selected generates a color on a rectangle shape.
3. Perhaps generating color codes for the pixel selected?