In the other direction, via ComposeUIViewController, you can embed Compose Multiplatform screens in SwiftUI applications, helping you gradually adopt Compose Multiplatform in iOS applications. As cross-platform development solutions continue to evolve, their limitations have begun to pale in comparison to the benefits they provide. A variety of technologies are available on the market, all suited to different sets of workflows and requirements. Each of the tools discussed in this article offers extensive support for teams thinking about giving cross-platform a try. Since you don’t need to build different apps for different platforms, you can develop and launch your product much faster.

kotlin ios development

Because Compose Multiplatform on iOS uses canvas-based rendering, both iOS and Android applications look the same by default. Currently, Compose Multiplatform provides Material and Material 3 widgets out of the box on all platforms. These are the same widgets that you may already be familiar with from Android applications. Using the builtin theming functionality, you can adjust the look and feel of these widgets to reflect your branding, either consistently across platforms or with custom platform-specific themes. Choosing a mobile development approach that is right for you depends on many factors, like business requirements, objectives, and tasks.

This post is based off a talk given at Google I/O Extended for Google Developers Group London in July 2023.

How do you go about creating a mobile app that can reach Android and iOS audiences? In this article, you will find out why more and more mobile engineers are choosing a cross-platform, or multiplatform, mobile development approach. That’s why expected and actual declarations should be defined in the same package − they are merged into one declaration in the resulting platform code. Any invocation of the expected getPlatform() function in the generated platform code calls a correct actual implementation.

Remember, KMP is still experimental and highly subject to change, but it is rapidly evolving and improving. Not only that, KMP has already been used successfully to build apps currently available in the App Store. KMP is the natural next technology of choice for any iOS developer who wants to branch out to develop their apps on other platforms. Next, go to the General tab of your iOSApp target, scroll to the bottom and press the + button under Embedded Binaries. In the Finder window that appears, select the GifLibrary.framework file in GifGetter/GifLibrary/build/ and press Open. This should also add the framework to Linked Binaries and Frameworks.

Implementing KMP on Android

Use a single codebase for the business logic of iOS and Android apps and write platform-specific code only where it’s necessary, to implement a native UI or when working with platform-specific APIs. Of course, a key question for a cross-platform UI framework is to which degree elements should mimic the look and feel of its target platforms. At the current stage, the JetBrains team has not yet made any decisions about providing native or common-looking UI elements.

kotlin ios development

React Native provides access to several third-party UI libraries with ready-to-use components, helping mobile engineers save time during the development process. Like Flutter, it allows you to see all your changes immediately, thanks to the Fast Refresh feature. This approach has several benefits, such as efficiency with respect to both time and cost. We’ll take a closer look at the pros and cons of cross-platform mobile development in a later section.

Explore Compose for iOS with demo applications

Both applications are a huge step forward and both are presenting two powerful approaches. I believe that after this presentation people will treat more seriously my postulates about independence between platform and business logic. In the meantime, React Native is the go-to cross-platform tool at Mobiquity. This JavaScript framework, created by Facebook parent Meta, allows developers to code one app that is publishable on both iOS and Android platforms. It’s currently one of the most in-demand skills on LinkedIn’s job search tool. Check out the finished project on GitHub for reference, if you like.

  • However, Kotlin/Native sometimes doesn’t support the newest Xcode right away.
  • Kotlin/Native has bidirectional interop with Objective-C and Swift languages.
  • As the need and urge for new apps for daily purposes and the upliftment of any process.
  • You can check the progress of the gradle sync in the   tab at the bottom of Android Studio to see the sync’s progress.
  • On Android, we had an average improvement of 1.5s off of J2V8 initialization time and 5x faster runtime of shared code itself.
  • Depending on your network speed, this can take 5-20 minutes or so.
  • The created framework contains all declarations and binaries needed to use it with Objective-C and Swift.

It contains useful information about common tasks, like organizing networking and data storage layers and even organizing the development process around KMM. Kotlin/Native provides integration with the CocoaPods dependency manager. You can add dependencies on Pod libraries stored in the CocoaPods repository or locally, and you can also use multiplatform projects with native targets as a CocoaPods dependency (Kotlin Pod). Manage Pod dependencies directly in Android Studio and enjoy full coding support, including highlighting and completion.

Examine the project structure

In order to show the map correctly on different device screen sizes, you’ll need to adjust the constraints. Since you only have one view to worry about, Xcode will set the constraints for you. It may seem magical to push a button and have Kotlin code running on an iOS device. But there are several tools and scripts behind the scenes that help pull off this illusion. You’ve just run your first iOS app from Kotlin, without any Objective-C or Swift source code in this project.

kotlin ios development

Kotlin objects integrate with Objective-C/Swift reference counting. The Objective-C Interop article contains more information on the interop implementation details. Of course, it is possible to import an existing framework and use it from Kotlin. Kotlin/Native comes with a good set of pre-imported system frameworks. All global functions from Kotlin are turned into DemoLibKt in Objective-C and into LibKt in Swift, where Demo is the framework name and set by the -output parameter of kotlinc-native.

Now in AI: Handpicked by Better Programming

If you want to talk to the team behind Compose Multiplatform or other developers, we also invite you to join the discussion on the Kotlin Slack. In the #compose-ios channel, you can find discussions about Compose Multiplatform for iOS. In #compose you can discuss general topics related to Compose Multiplatform and Jetpack Compose. A good way to explore how a new technology is used is to look at some samples.

kotlin ios development

Hey there, These days, every person is dealing with an app at least once per day. Every day, an app is being processed to complement the day-to-day services we do in our lives. Every app has a varied development process based on the platform to be used.

Global declarations from Kotlin

Want to go beyond sharing app logic and reuse the whole app code? Sharing the UI is possible with Compose Multiplatform – you can already experiment with sharing the UI between Android and iOS. I know how to develop apps for iOS on windows using Objective-C but I would like to know how I can build apps for iOS on windows using Kotlin. You can use it to navigate to corresponding actual declarations.