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 …

I recently spent some time with . For those of you who’ve worked with UIImagePickerController, you might have noticed one of its major drawbacks: you can only select one photo at a time. ELCImagePickerController solves this issue by cloning the UI of UIImagePickerController, but with the added bonus of allowing you to select multiple assets. Collin Ruffenach (), who authored the the first version of the picker, has done an awesome job of making …

Learn from Industry Leaders Who Literally “Wrote the Books” on iOS Development

Coming to you direct from Addison-Wesley Professional, which has published some of the leading books in the field, the Voices That Matter: iPhone Developers Conference is taking place October 16-17 in Philadelphia!

Take a look around at all the tech books you have on your physical and digital bookshelves. If you’ve been developing for the Mac, the iPhone and the iPad – chances are good that you rely on books by Steve Kochan, Erica Sadun, Aaron Hillegass and Jeff LaMarche. Even more, you probably follow the Tweets and blogs of folks like Graham Lee, Mike Lee, Matt Long and Chris Adamson. Wouldn’t it be great to meet and learn from these thought-leaders in person? Now you can at the Voices That Matter: iPhone Developers Conference!

Knowing the latitude and longitude of your users can open up all kinds of possibilities in your apps. In an upcoming post, we’ll be discussing how you can use your user’s location to determine their local weather conditions and forecast. But for now, we’re going to focus on Part 1 of this two part tutorial: CoreLocation.
Apple’s done a great job of abstracting GPS, Cellular Triangulation, and Wifi Access Point location lookups into CoreLocation; making it extremely easy to …

Way back when, when everyone was still complaining about Apple’s lack of support for (3rd party) multitasking, there was a simple solution put in place. This solution was known as push notifications.

Push notifications solved many of the issues associated with background processing. For example, when quitting the AIM application, the server could keep you logged in and send you a push notification when a new message arrived. You could then tap on a View button that would launch the app.

This solution is great and all, but it still requires that you have an active internet connection. As of iOS4, Apple has introduced a new type of notification that can be scheduled to fire within the device itself. It requires no complicated server programming, or additional configuration with iTunes. I am talking about Local Notifications.

So, why would you want to integrate Google Analytics into your iPhone application. Duh, for the same reasons you would integrate it into your site. Google has extended their killer analytics platform to include mobile devices including the iPhone and Android devices.

The analytics API gives you some very powerful options to get as nitty gritty as you would like in your application tracking.

If I need to predict one thing about where the App Store is heading to, now that the iPad has been released, I would say “It’s going to be less about farting apps and much more about productivity apps” Yes – the iPad has already changed the game drastically – with an almost real life size keyboard, large beautiful screen and file sharing direct in iTunes you can achieve much more than before. But hey, iPhone OS 4.0 is just around the corner, and I bet one of those new features will be the same file sharing you get on the iPad.

So, let’s face it, MANY applications in the app store are “Clunky”. They have jittery interfaces, poor scrolling performance, and the UI tends to lock up at times. The reason? DOING ANYTHING OTHER THAN INTERFACE MANIPULATION IN THE MAIN APPLICATION THREAD!

What do I mean by this? Well, I am essentially talking about multithreading your application. If you don’t know what is meant by multithreading, I suggest you read up on it and return to this post. Let’s dig in and I’ll give you an example of the problem.

Introduction
Back in September I posted a large post going over all the components required to implement the MapKit in your application. The MapKit is a framework introduced in iPhone OS 3.0 and allows developers to easily take advantage of Google’s mapping technology. In my first post I go over how to present a map as well as annotate the map with custom badges to highlight points of interest. The MapKit also …