أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
You can learn iOS development quickly by using these kind of stuff:-
1) Book: Programming in Objective c by stephan Kochan
2) Tutorials: http://www.appcoda.com
htttp://www.raywinderlich.com
3) Docs, samples, videos: https://developer.apple.com/library/ios/navigation/index.html
This AppCoda course is great if you're coming from any programming language http://www.appcoda.com/ios-programming-course/
I think the apple documenation is the best place.
https://developer.apple.com/library/ios/navigation/#section=Resource%20Types&topic=Getting%20Started
developer.apple.com