To get from good to great, I believe we have to constantly learn from others, and become early adopters of latest techniques and tools. Other than Apple’s docs, these are sites contain valuable articles and resources to help you make the leap.
|nshipster.com||Mattt Thompson||Articles||Jul 07, 2020|
|objc.io||Many||Books, Videos, Articles||Active|
objc.io — A monthly updating issue contributing from world-class iOS engineers. Expecting high quality and in-depth articles on certain topic, they also provides a subscription-based newsstand iPad app. Found by Chris Eidhof, Daniel Eggert, and Florian Kugler.
Subjective-C — Recently hot site that disassemble and reconstruct innovative patterns and UI found in famous apps. Provide procedural articles and code repositories for their experiments. Written by Sam Page.
NSHipster — Class by class in-depth explaination and with sample code. Talks about coding styles and cutting edge approaches of class usages and implementation. Created by Mattt Thompson who published AFNetworking, now managed by Nate Cook.
Peter Steinberger — Personal blog of the author of the most popular commercial PDF library on iOS that has been used by famous apps like Dropbox and Evernote. Contains crazy hacking materials and debugging resources to learn and apply for development.
Ole Begemann — Blog focused on sharing his personal experience, discussion on code style and API design, and occasionally revealing interesting private classes that used by Apple.
Florian Kugler — Personal site from the co-author of objc.io. You’ll find a number of articles about performance measurements and discussions, including UI drawing to multi-threaded Core Data.
NSBlog — Written in an interesting Q&A format, contains lots of deep questions not just on Objective-C. If you’re those kinds of developer have questions on rebuilding a fundamental class like NSObject, ask Mike Ash.
Cocoa — Random but useful bits of iOS development logs and insights from the iOS developer’s team at Tumblr.
iOS Dev Weekly — Weekly updating since 2011. An iOS newsletter site with more than 20,000 subscribers. Help revealing valuable iOS articles from the web. Also provides Safari push notifications. Founded by Dave Verwer.
iOS Goodies — Relatively new iOS newsletter site. Content is distributed in Articles, Controls/Tools, Business, UI, and different media types, etc. Weekly delivery by Rui Peres and Tiago Almeida.
Design+Code — One site I am recently helping to write tutorials, design and prototype centric, containing step by step screencast, graphics resources and example projects. Created by Meng To, a man I personally know who has a fascinated story.
AppCoda — Created by my developer friend in Hong Kong, who recently quit his job to dedicate full time on this project. Includes both online and pay to download articles, focused on new API and frameworks for implementation. Worth a shot at Simon Ng.
Krzysztof Zabłocki — Useful advices on code architecture, tools, and Xcode tips, certainly missing out during my first publish of this blog post. We are learning a lot from those advanced articles.