Even if you have never coded before, you can learn how to build an app from scratch using Xcode. This book takes you step-by-step through designing, coding, and testing different iOS applications. The code in this book is easy to follow along with. The book's numerous screenshots ensure that no learner is left behind. Playground – In Part 1, you learn the foundations of Xcode using Swift 3.0's Playground. The Playground is the perfect place to test code in real-time. We use the Playground to introduce coding topics like variables, functions, and loops. UI Elements – Apps are made up of User Interface (UI) elements. In Part 2, you create Projects to test common UI elements, including labels, buttons, and text fields. With code, you learn to implement the objects to give them functionality. Example Apps – In Part 3, we create functioning apps. To build an app, we design its layout and implement its functionality. You learn how to test your apps by running them in the Simulator.