#persistence

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…

NSUserDefaults is a great way to save small amounts of data that you want to persistent across application "sessions" (especially where a database would be overkill). Saving data: [[NSUserDefaults standardUserDefaults] setBool:YES forKey:KEY_TO_IDENTIFY_INFORMATION]; In the above, we s…

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…