![]() To make Kotlin more interoperable with Objective-C and Swift, three new annotations were allows you to specify a more idiomatic name in Swift or Objective-C, instead of renaming the Kotlin declaration. Platform libraries were updated to reflect the changes to Objective-C frameworks for Apple targets. The Kotlin CocoaPods Gradle plugin no longer has bitcode embedding for Apple frameworks by default. There's a new watchosDeviceArm64 preset for the watchOS target that supports Apple watchOS on ARM64 platforms. The compatibility improvements include the following changes: The Kotlin/Native compiler now supports the latest stable Xcode version, 14.1. Improved Objective-C/Swift interoperabilityĭynamic frameworks by default in the CocoaPods Gradle plugin Kotlin 1.8.0 includes changes to Objective-C and Swift interoperability, support for Xcode 14.1, and improvements to the CocoaPods Gradle plugin: Learn how to configure the Lombok compiler plugin. We don't yet have plans to support the or annotations, but we'll reconsider if enough people vote for the and issues. The community has added so many votes for the Kotlin Lombok: Support generated builders YouTrack issue that we just had to support the annotation. By extension, we've removed the compiler option -Xuse-old-backend and the Gradle useOldBackend option. In Kotlin 1.8.0, we've removed the old backend completely. That meant that the old backend from Kotlin 1.4.* was deprecated. In Kotlin 1.5.0, we announced that the IR-based backend became Stable. Never use this option in production: Disabling this feature via -Xdebug can cause memory leaks. However, it is difficult to debug code with optimized variables because you don't see their values. The "was optimized out" feature optimizes variables when you use suspend functions. In the future, after we add more optimizations, this option will disable them, too. For now, the option disables the "was optimized out" feature for coroutines. Kotlin 1.8.0 adds a new -Xdebug compiler option, which disables optimizations for a better debugging experience. A new compiler option for disabling optimizations Starting with Kotlin 1.8.0, you can use the new compiler option -Xno-new-java-annotation-targets to avoid generating the TYPE_USE and TYPE_PARAMETER annotation targets. This is an issue for Android clients with API levels less than 26, which don't have these targets in the API. This is just like how the TYPE_PARAMETER Kotlin target maps to the .TYPE_PARAMETER Java target. If a Kotlin annotation has TYPE among its Kotlin targets, the annotation maps to .TYPE_USE in its list of Java annotation targets. The new language version also includes:Ī compiler option for switching off the generation of JVM annotation targetsĪ new -Xdebug compiler option for disabling optimizationsĪbility to not generate TYPE_USE and TYPE_PARAMETER annotation targets Starting with version 1.8.0, the compiler can generate classes with a bytecode version corresponding to JVM 19. To migrate existing projects to Kotlin 1.8.0 in IntelliJ IDEA 2022.3, change the Kotlin version to 1.8.0 and reimport your Gradle or Maven project. Java is a registered trademark of Oracle and/or its affiliates.You can update your projects to Kotlin 1.8.0 in IntelliJ IDEA 2022.3 without updating the IDE plugin. For details, see the Google Developers Site Policies. RequirementsĮxcept as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. ![]() Developers must have sourceĬode for their Android app, which they either own or are licensed to use. J2ObjC cannot convert Android binary applications. UIs using Android's API, web app UIs using J2CL, etc.). We believe that iOS UI code needs toīe written in Objective-C, Objective-C++ or Swift using Apple's iOS SDK (Android J2ObjC does not provide any sort of platform-independent UI toolkit, nor are Translation and execution is also supported. J2ObjC supports most Java language and runtime features required byĬlient-side application developers, including exceptions, inner andĪnonymous classes, generic types, threads and reflection. ![]() Shared by web apps (using J2CL), Android apps, The goal is to write an app's non-UIĬode (such as application logic and data models) in Java, which is then This toolĮnables Java source to be part of an iOS application's build, as no editing Java source code to Objective-C for the iOS (iPhone/iPad) platform. J2ObjC is an open-source command-line tool from Google that translates
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