Now that we’ve got our app working, let’s try to make our code better looking by refactoring it.

• Using what you’ve learnt about extensions, create an extension for the CoinManagerDelegate related code and an extension for the UIPickerView Delegate and DataSource related code. Then mark them with a MARK comment.

SOLUTION

Check out the solution to this challenge step by cloning the project from the link below:

https://github.com/appbrewery/ByteCoin-iOS13-Completed/tree/Step-6-Solution