Programming iOS 9 Dive Deep Into Views, View Controllers, and Frameworks, Matt Neuburg, O’Reilly, 2015
This is the kingbird book, updated for iOS 9. Yikes, 1000 pages! But that is what is needed to cover iOS 9, Xcode 7, and Swift 2. Programmers will learn much about Apple’s development tools from this well written book. And most sections include example code.
You need to have read Matt’s seal book first: iOS 9 Programming Fundamentals. Unfortunately, the OPL does not have this book, but there is at least iOS 8 Programming Fundamentals.
Legendary O’Reilly quality.