Cocoa, the API behind iOS and Mac Objective-C, is the hardest part, and is still there. I suggest going through some detailed tutorials on building an X, so yo

Cocoa, the API behind iOS and Mac Objective-C, is the hardest part, and is still there. I suggest going through some detailed tutorials on building an X, so you get the feel for how views, view controllers, objects and everything all interact. The new playgrounds look EXCELLENT for doing that! Best of luck