39:51 Protocol and Value Oriented Programming in UIKit Apps
58:22 Understanding Swift Performance
16:02 Deploying AirPrint in Enterprise
35:53 Enhancing VoIP Apps with CallKit
41:15 Advanced Metal Shader Optimization
35:41 Concurrent Programming With GCD in Swift 3
37:18 System Trace in Depth
41:35 Iterative UI Design
20:44 AVCapturePhotoOutput - Beyond the Basics
59:42 Advances in iOS Photography
30:02 Developing CarPlay Systems, Part 1
14:45 What's New in the Apple Push Notification Service
26:13 Developing CarPlay Systems, Part 2
11:37 Speech Recognition API
22:21 Validating HTTP Live Streams
11:19