Computer Science is the study of abstraction – finding the best model for a problem and implementation – figuring out how to solve the solution mechanically. That is what my new series is all about: getting back to the basics and understanding how Computer Science will make us better iOS and Objective-C programmers. Introducing the [...]

Anyone who uses NSDate knows that the output format can be pretty unpleasant looking. This output is not something that you would generally present to your users. So what is an Objective-C programmer to do with dates? The answer is to use NSDateFormatter to create date formats and get data objects formatted as strings that [...]

So I’ve been trying to get myself to publish a monthly newsletter for Mobile App Mastery and this blog for some time. But, as you will find out in a second I’ve been extremely busy with a sweet semi-secret project. But, at any rate here is my attempt to update you on the tons of [...]

As an undergraduate, I took a liberal arts course that really changed my thinking about programming. If you can believe it, this course was a philosophy course! This course is what brought everything into focus and made me into the programmer that I am today. Here is to learning to solve problems logically for easy [...]

Many people, when they are first starting with Objective-C and iOS want to be able to compare strings in if-then statements and things like that. But note that that doesn’t work because strings are objects and if you want to compare strings you will need to use the NSString object methods that Apple has made [...]

Chapter 12: Key-Value Coding (KVC) of my free eBook, Beginning Objective-C Programming. This involves using a set of NSObject methods that can set or get property values based on their string representation. So, if a class has a name property you can get or set that value by using the dot notation in code or [...]

Here is the problem: your app works with dates and you would like to be able to find out what day came a week before, or is coming up in two years. There are a few ways to do this but the easiest by far is to use your user’s calendar along with the NSDateComponents [...]

Did you know that you can make web apps with Objective-C? Here is the “hows” on Building Web Apps With Objective-C, or should I say, Objective-J! Objective-What? Objective-J is a programming language that is based on Objective-C that is designed to work with web apps. The J comes from the idea that Objective-J is a [...]

The other day, I was looking around for a simple way to just compile a text file for a simple Mac app. This isn’t something that you would do everyday but there are times when it’s nice to have the simplest bit of code out there without all the fuss involved with the XCode templates [...]

Latest Chapters of my Free eBook Recently Added. Chapters 10, 11 and 12 Added to Beginning Objective C Programming. What’s In This Objective-C Programming Book? The first section of this eBook has all the essential elements of programming that you need to learn before really moving on as an iOS developer. This is what you [...]