In the simple example explained in this tutorial, and others, there are a few key points that I wish I’d seen in a blog somewhere, ha. It’s best to deal with literals, so I am recreating the example quickly, with notes on what aspects to check. If you have a complex or already created app,…

My skill level jumped up by leaps and bounds through a few guided reviews of my code with a friend. Here’s what I learned, for posterity and retaining my own lesson, ha. Objective-C has C-styled instance variable initialization and assignment It may be confusing, but I kept seeing code examples that had this: NSArray *imageArray…

I am chugging right along on this application- and, you guessed it, a cootie catcher. The next step is to create a simple animation of the paper toy opening and closing (based on user selection). The task: based upon a button click, animate 3 images to simulate the opening and closing of the toy. Slightly…

I got a very simple iPhone application to work, basically a riff of a great blog post- from Cocoa is my Girlfriend, “Cocoa Touch Tutorial iPhone Application“. The application shows an image based on a button click. 1. Create a project in Xcode, “Cocoa Application”. Name it something, like “Example.” 2. Open up the ExampleAppDelegate.m,…