Objective-C: Categories

When writing our own program, you’ll often want to add some new method to an existing class. You can always add a subclass to an existing class if you want to add some more method to it. But there are limitations to that, not every time subclassing is convenient enough for people to subclass. For … Continue reading Objective-C: Categories

Core Data: Simple Data Modeling

On my last post, you learned and became familiar with the template codes of Core Data. Now, you will learn how to model your own data using Core Data and you will modify the code to create to-dos instead of timeStamps. To build the to-do application, you will need to modify the data model by … Continue reading Core Data: Simple Data Modeling

iOS: Introduction To Core Data

In this tutorial, you will learn how to work with Core Data and how to model your data for an enterprise-level apps. We will not program or anything but you will need Xcode for the modeling part of the tutorial. Note: You can download Xcode 4 at http://developer.apple.com/ or via the Mac App Store In … Continue reading iOS: Introduction To Core Data