Since you have both Android and iOS apps, you can save some headache by sharing some code for fetching the data and saving your preferences.īut before you get into the implementation, you’ll learn some theory first. It’s also great if you can save the users’ favorite grains locally.

Of course, you’ll want to update the list from time to time, and it’s better if it can be done remotely. Once you click the Grains button, you’ll see the screen below. Looking at the code, you’ll find the starter project provides the interface and some logic for the MultiGrain app: A simple app that navigates a list of grains and their descriptions, it saves your favorite grains and has platform specific code in the UI.īuild and run the starter code on Android Studio and you’ll see the screen below.

If you are new to Android development, check out our Android Tutorial for Beginners series first. Note: This tutorial assumes you are familiar with the basics of Android and Android Studio. Use a recent version of Kotlin - 1.4.20 or above.

Open the starter project in Android Studio 4.1 or later. Ready to get started? Keep reading! Getting Startedĭownload the starter project by clicking the Download Materials button at the top or bottom of the tutorial. Integrate KMM into an existing project.In this tutorial, you’ll learn how to build and update an app for Android and iOS while only having to write the business logic once in Kotlin. Thanks to Kotlin/JVM, Kotlin/JS and Kotlin/Native, you can compile/transpile a single project for many platforms. Historically, it’s known as Kotlin Multiplatform Project, or MPP. These similarities are why Kotlin Multiplatform Mobile (KMM) exists. While these two platforms are different, the business logic behind your app is probably similar: download files, read from and write to a database, send messages to a remote host, and retrieve and display fancy kitten pictures. Dario Coletto wrote the original.Īre you a bit tired of writing two versions of similar code for Android and iOS? Update note: JB Lorenzo updated this tutorial for the alpha version of Kotlin Multiplatform.

Kotlin ios development