i OS 11 Swift 4 & Xcode 9 provide many new APIs for i OS developers With this cookbook you'll learn more than 170 proven solutions for tackling the latest features in i OS 11 & watch OS 4 including new ways to use Swift & Xcode to make your day-to-day app development life easier This collection of code-rich recipes also gets you up to speed on continuous delivery & continuous integration systems Ideal for intermediate & advanced i OS developers looking to work with the newest version of i OS these recipes include reusable code on Git Hub so you can put them to work in your project right away Among the topics covered by this book New features in Swift 4 & Xcode 9 Tools for continuous delivery & continuous integration Snapshot testing & test automation Creating document-based applications Updated Map view & Core Location features i OS 11's Security & Password Autofill Data storage with Apple's Core Data Creating lively user interfaces with UI Dynamics Building i Message applications & sticker packages Integrating Siri into your apps with Siri Kit Creating fascinating apps for Apple Watch