For the past few years, I have been attending a fantastic conference put on by Pearson Education. The conference is called Voices That Matter. It’s a 2 day event (3 if you do the additional workshops), where you will learn about cutting edge iOS development from many of the leaders in the space.
Well, this year is no different, and on November 12th, Pearson will be putting on another one of these conferences at the Harvard Medical Center in Boston. …

In the recent months, I have had a few separate applications that required a “timeout”. What I mean by this is, the application should log the user out if they haven’t touched the screen in X number of minutes. There are quite a few uses for this, but the best use is when you have an application that contains sensitive data in a shared environment.
For example, say your company uses iPads to collect feedback from your …

Have you ever looked at the enumerateObjectsUsingBlock method of NSArray and wondered how you might use that design pattern in your own application. In this tutorial, I will be showing you how to do just this. We will be writing methods that accept blocks as arguments as well as learning how to declare block ivars and properties.
This tutorial assumes that you have at least a basic understanding of using blocks and Grand Central Dispatch (GCD). If not, …

Hello iCoders,
I have a quick tip today that I have been using in some of my development that you guys may find helpful in yours. Lately I’ve been developing a Framework. We mentioned a little something about it earlier here on iCodeBlog. When developing a .framework, a lot of times during my work I couldn’t place break points in the code and had to rely mostly on NSLog. NSLog however really wasn’t doing the job for me. So I …

The iPhone 4′s front camera is limited to 640×480 resolution. Although handy for video conferencing, for some apps that’s to small to yield a usable photo. Unfortunately the UIImagePickerController class does not have an option to restrict the user from using the front camera. Although you can check the size of the photo after the user is finished, it’s not great user experience to reject it after they go through the entire process of taking a photo.
One option is to …

Today I’m going to show you how to make a simple “Hello World” project on the iPhone. There are quite a few ways that this can be accomplished, however I am going to show you the way that I feel will be the most beneficial.
While I know many of iCodeBlog’s readers are veteran developers, this tutorial (and many in this series) are going to be geared towards the more novice developer. This group is often overlooked when it comes to …

Hey iCoders,
Long time readers will recall a project that has been in development here for a while now. It has known many names; TweetMapper, StreamMapper. But today I am happy to announce that Bird’s Eye is available in the app store.
Bird’s Eye in the App Store
Bird’s Eye is a Twitter Browser. You can not tweet from it, but you will need a Twitter account to use it. Bird’s Eye focuses on the real time nature of Twitter. …

If you are like me and love using blocks over delegates, then these code snippets will come in handy. After learning about blocks I have come to love to use them, especially using them for callbacks rather than using the old protocol/delegate methodology. These code snippets will allow you to use blocks as callbacks over delegates.
In a previous post Facebook SDK – Posting to User News Feed I showed how to post various types of status’s to the …

For this tutorial, we are going to discuss the basics of getting set up for developing on the iOS platform. While there are many 3rd party tools that allow you to develop a number of ways, I am only going to discuss the officially supported ones from Apple. That being said, let’s get started.
The Hardware

The first thing you are going to need is an Intel Based Apple Computer running OSX 10.6.6 or better. Hackintosh computers have …

Hey iCoders,
As we have worked together over the last three years, some of the other iCodeBlog writers and I have gotten some pretty good coding conventions going that we thought would be good to share with you guys. One of the toughest to read coding conventions on iPhone is the declaration and synthesis of iVars. I’m going to go through a quick example of the correct way to do this, and the advantages of using the practice. So lets dive …