Introduction
In the age where Core Data is king, the database that started it all is often overlooked. I’m talking of course about sqlite. As you may or may not know, prior to core data, sqlite was the preferred method of storing relational data on iOS devices.
Although, most developers don’t interact with sqlite directly, they still use it under the hood as the primary data store for core data. This is great and all, but there are often times when raw …

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Introduction
In today’s post, we are going to be discussing view controllers. Let’s start by talking about what a view controller is and it’s role in your iOS projects.
What is a View Controller?
View Controllers are at the core of every application. They act as sort of the glue between your models and your views. View controllers are both responsible for fetching/initializing your models as well as loading up your views to display the information within them.
Basic View Controllers
Every …

Often times you find yourself in a situation where you might want to control your application remotely. You may want to enable/disable features at a certain time, push messages to all of your users, or do some cross promotion whenever you launch a new application. All of this can easily be done with a little JSON and some simple web interface coding.

 
In this tutorial, I will show you how to use ASIHTTPRequest along with JSONKIT to fetch, parse, …

For the past few years, I have been attending a fantastic conference put on by Pearson Education. The conference is called . 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, …

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 …

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 …

Wow, can you believe that it has been almost 3 years since I started iCodeblog!? It seems like just yesterday, That I wrote my very first tutorial in July of 2008. Now, iCodeBlog has multiple authors, hundreds of tutorials, and over 5,000 readers per day!
As you know, a few things (to say the least) have changed since we first launched iCodeBlog in 2008 with the way we develop for the iOS platform. With that being said, …