Book Description Designing exceptional, versatile, and efficient mobile apps is crucial to compete and succeed in the fiercely competitive mobile app space. Extreme Mobile employs a hands-on approach to demonstrate state-of-the-art programming techniques for developing reusable, configurable, brandable, and localizable iOS mobile apps. The book starts with basic concepts for creating customizable software by leveraging iOS Frameworks. Each subsequent chapter adds complexity to the apps being developed, at a pace that’s both clear and comprehensible. The book utilizes Swift Protocols, the Model-View-ViewModel design pattern, Dependency Injection, Combine, Storyboards, and SwiftUI. Techniques for dynamically integrating iOS frameworks are also showcased. The book concludes with the creation of distinct apps using the developed frameworks, all without the need for code changes. Who this book is for This book is intended for intermediate software developers with a basic understanding of Xcode, iOS SDK, Swift, and Storyboards. Table of Contents Designing Frameworks Using Protocols & UIKit Designing Frameworks Using Model-View-ViewModel, Local Services, & UIKit Designing Frameworks Using Model-View-ViewModel, Dependency Injection, Combine, Remote Services, & UIKit Designing Frameworks Using Model-View-ViewModel, Dependency Injection, Combine, Mock Services, Core Data, In-App Purchases, & SwiftUI Designing Frameworks Using In-App Purchases and UIKit Driving Feature Enablement in Frameworks Using In-App Purchases Integrating Frameworks Dynamically - ScratchTraxApp1 Integrating Frameworks Dynamically - ScratchTraxApp2 Localization Branding Distribution and Integration