I spent the past weeks getting myself familiar with iOS. I’m a Flash Developer for more than 7 years now (started in 2004), so Objective-C was completely alien to me as well. I made this little guide that should help out any developer to start properly. I should mention this is the best of all the resources I went through, so hopefully it will save you hours of browsing time.
STEP 1 – research
ManyFriends – read every word on this wiki. You will make an idea about the mobile business, from an iOS developer point of view, and get to some very useful links as well. I went through hundreds of blogs. Here you will get information you won’t find anywhere else. I highly recommend you start with it first (he even mentions what he charges and how he charges).
STEP 2 – get familiar with the syntax
The syntax is different, but in my opinion it’s better than AS3. You will understand what’s better after you read these articles entirely. The bad thing is that although Objective-C 2 has garbage collection, it’s not YET supported in the iPhone SDK. This means us, the developers, have to handle all the memory stuff.
2. Naming (part 1) (check part 2 as well)
STEP 3 – start (blogs & forums)
Articles and tutorials: http://mobile.tutsplus.com/
Forums to subscribe to:
STEP 4 – a complete guide
This book gets you from A to Z with the technology and modules available on iOS today, you should buy it and read it! (I’m at page 296 at the moment of writing this article)
STEP 5 – practice
Download and watch the free Stanford classes for programming for iPhone on iTunes:
a) iPhone Application Programming (Spring 2009)
(the last link is to dig deeper)
STEP 6 - dig deeper
Apple’s website (everything but the iOS Reference Library, which is too much information to go over – only use it as you code)
Make sure you start with the HIG!
Write your first basic app.