From time to time, I refer to official Apple documentation. Some of Apple’s descriptions are right on the mark, and there is no point in trying to restate them. Throughout this book, I have listed the most important documents and guides in the official Apple documentation that every professional iOS developer should read.
For starters, I suggest that you have a look at the iOS Human Interface Guidelines for all iOS devices. This document will tell you everything you need to know about developing engaging and intuitive user interfaces for all iOS devices. Every iOS programmer should read this document. In fact, I believe this should be required reading for the product design and development teams of any company that develops iOS applications.
I also suggest that you skim through the “iOS App Programming Guide” in the iOS Developer Library for some tips and advice on how to make great iOS applications.
iOS 7 brings with itself quite a lot of changes to how UI components appear on the screen. We will talk at great length about these changes and how you, as the programmer, can use the latest APIs to create great-looking apps for iOS 7. However, I would like to suggest that you have a look at the iOS 7 UI Transition Guide provided by Apple, which outlines all the UI changes that have now been made to the latest version of the SDK.
One of the things you will notice when reading Chapter 16 is the use of block objects. This book concisely explains block objects, but if you require further details on the subject, I suggest you read “A Short Practical Guide to Blocks”.
Throughout this book, you will see references to “bundles” and loading images and data from bundles. You will read a concise overview about bundles in this book, but if you require further information, head over to the “Bundle Programming Guide”.