ios - I have a container view inside of view and the container view is connected to a view through a segue.How to access the elements of the main view

Question

I have a container view inside of view and the container view is connected to a view through a segue.How to access the elements of the main view.[Here as you can see the Tag Container View inside the ProductDetailsViewController contains PrintTagViewController][1].My objective is to access elements of the ProductDetailsViewController from PrintTagViewController for e.g. when I click on a button present in PrintTagViewController ; the stepper inside ProductDetailsViewController should get incremented.

Answer 1

You can define a Protocol for PrintTagViewController and declare ProductDetailsViewController as the delegate of PrintTagViewController.

There are plenty of resources online for Swift delegates and protocols, here are two examples:

• https://useyourloaf.com/blog/quick-guide-to-swift-delegates/
• https://docs.swift.org/swift-book/LanguageGuide/Protocols.html