How to share data between Navigation Controllers

The Root Navigation Controller can serve as a data model. Each View Controller connected to the Navigation Controller via push segue can access its properties like so:

Here’s an example. MyNavController is the class for the Navigation Controller. This snipped is called from any View Controller in sequence and assumes we have an integer myNumber which is increased by one:

The same principle works for Tab Bar Controllers too.

Jay is the CEO and founder of WP Hosting, a boutique style managed WordPress hosting and support service. He has been working with Plesk since version 9 and is a qualified Parallels Automation Professional. In his spare time he likes to develop iOS apps and WordPress plugins, or draw on tablet devices. He blogs about his coding journey at http://wpguru.co.uk and http://pinkstone.co.uk.

Add your voice!