Learning Xcode and Interface Builder (iOS Development) Excercises?

Hi all,

Does anyone know where I can find step-by-step, easy to follow, exercises to learn the basics of Xcode and Interface Builder for iOS, on the internet?

I'd like to find excercises that gradually become harder as they progress i.e First excercise being Hello World etc.

Any website recommendation is greatly appreciated.

Many thanks!

 

i know of a website.
I think it's called design then build.

It's a tutorial for designing interfaces on iOS

i think it's design then build or design then code

 

Thanks Paronga. I'll see if I can find it on Google.

Any other suggestions are greatly appreciated.