Purpose

• To get color of a pixel at touch point.
• You can set knob in UIImageView.
• Also color at point when moving knob

Advantage/Benefits

• Simple to use

How to Use

• Add UIImage view and select any image

• Change class name to "ColorWheelImageView"

• Set delegate "ColorWheelImageViewDelegate"

• Implement method

• (void)colorWheelDidChangeColor:(UIColor *)color{

  _imgSelectedColor.backgroundColor = color;

}

• For more detail download project and run.

Note : Code is in Objective C but you can use it in Swift project via Bridge

Edited by Tejas