#core data

There are very few certainties in app development, but one is that once your app is released it will change in unexpected ways. And no matter how flexible your architecture is, inevitably one of those changes will be a breaking change…

Core Data and Unit Testing haven't always been the best of friends. Like two members of the same friend group who don't really know each other but really like their UIKit friend…

People really care about their possessions. Nowhere do you see this more than on public transport. It's not unusual to see bags occupying seats while people stand. As a Brit, we have developed a powerful non-verbal based form of communication to indicate that you want someone to move their bag…

Social networks work on the basis of presenting a feed and allowing the user to interact with the content contained in the feed in (hopefully) novel and interesting ways that the user derives usefulness (joy?) from. The presentation of the feed varies greatly from social network to social network bu…

Application requirements evolve, which require us to refactor existing features. For the most part, Xcode's built-in refactoring tools work well; however, an area where the refactoring tools can't help is with stringy APIs. Core Data seems to be full of stringy method parameters - in this ar…

I'm often asked to explain Core Data to the new joiners. I thought I'd share what I tell them about the components that make up Core Data: 1. Persistent store - is where Core Data stores its data, more often in a form of a SQLLite database but can be Atomic (binary store) or In-Memor…

Adding search functionality to your UITableView can be achieved using the built in UISearchBar object and implementing the UISearchBarDelegate protocol. I am going to take us through an example that searches an Article instances (data object) properties for the users entered search string, displayin…