Book Image

Simplifying Application Development with Kotlin Multiplatform Mobile

By : Róbert Nagy
Book Image

Simplifying Application Development with Kotlin Multiplatform Mobile

By: Róbert Nagy

Overview of this book

Sharing code between platforms can help developers gain a competitive edge, and Kotlin Multiplatform Mobile (KMM) offers a sensible way to do it. KMM helps mobile teams share code between Android and iOS in a flexible way, leaving room for native development. The book begins by helping you to gain a clear understanding of the Kotlin Multiplatform approach, how it works, and how it is different from cross-platform technologies, such as React Native and Flutter, and code sharing options, such as C++. You'll then see how your team can use this software development kit (SDK) to build native applications more effectively by learning timeless concepts and working through practical examples. As you advance, you'll get to grips with the core concepts, understand why UI sharing fails, and get hands-on with developing a small KMM application. Finally, you'll discover expert tips and best practices, along with production- and adoption-related questions, that will help you take the next step in your project and career. By the end of this Kotlin book, you'll have gained a solid understanding of the capabilities of KMM and be able to share code between Android and iOS flexibly.
Table of Contents (15 chapters)
Section 1 - Getting Started with Multiplatform Mobile Development Using Kotlin
Section 2 - Code Sharing between Android and iOS
Section 3 - Supercharging Yourself for the Next Steps

Introducing Gradle

When writing a KMM application, you'll be using Gradle to build your shared code. For this reason, it's paramount that you at least know the basics, in order to start developing KMM apps.

Gradle is an open source build automation tool and dependency manager. It is similar to CocoaPods on iOS, while covering a broader purpose than pure dependency management, and it is the build tool on which Kotlin Multiplatform (KMP) is also based.

Gradle provides its own domain-specific language (DSL) for writing build scripts, and this DSL is available both in Groovy and Kotlin: build.gradle is a build script written in Groovy, while build.gradle.kts is written in Kotlin.

We will not have an in-depth description of Gradle as it is a huge topic, and without a doubt, many of us as Android developers use it as someone uses a lightbulb: without extensive knowledge on how it works, it still proves to be useful. If you want to gain a more in-depth view of Gradle, I...