Kotlin Multiplatform In a Weekend Learn how to build high-quality mobile applications for Android and iOS efficiently using Kotlin Multiplatform (KMP). This hands-on guide takes you step by step through short, practical iterations, starting from sharing simple static data and evolving into fully shared ViewModels. You’ll develop a complete weather application from scratch while applying KMP and Kotlin best practices. Inside this book, you will learn how to:Set up a Kotlin Multiplatform project and configure Android and iOS environmentsCreate platform-specific UIs with Jetpack Compose for Android and SwiftUI for iOSShare data, business logic, and API services across platformsImplement repositories, Kotlin Flow, and dependency injection with KoinShare ViewModels and manage state efficiently across Android and iOSWrite tests for shared components to ensure correctness and maintainabilityEach chapter builds on the last, making complex concepts approachable and practical. By the end of the book, you’ll have a solid understanding of how to leverage KMP to create maintainable, reusable, and testable code that works seamlessly on both platforms. Perfect for Android or iOS developers, as well as Kotlin enthusiasts, this book shows you how to maximize productivity and minimize duplication by using Kotlin Multiplatform—all in just a single weekend.