Learn how to build a custom gesture recognizer for the Colorgon color picker.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4433-custom-controls-in-ios/lessons/11
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4433-custom-controls-in-ios/lessons/11
How can I creat heart shape gesture recognizer.