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Wires the HotSwan compiler plugin into the two modules its KMP guide calls for: :androidApp as the Android application module, and :composeApp as the module declaring the iOS binaries.framework. :composeApp doubles as the desktop app, so it also picks up interpreter-runtime-core, which desktop hot reload needs on the classpath. Using HotSwan needs the matching IDE plugin and a paid subscription; the Gradle side builds fine without either, with hot reload simply inactive. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ReoMX8TjLpTkCocLiLVTuL
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Summary
Adds the Compose HotSwan compiler plugin (
2.0.0, latest stable on Maven Central).Per HotSwan's KMP guide, the plugin goes on exactly two modules — the Android application module and the module declaring
binaries.framework::androidApp— the Android application module:composeApp— declares the iOS framework (and holds all the shared Compose UI)build.gradle.kts— registeredapply false:composeAppis also the desktop app, so itsjvmMainpicks upinterpreter-runtime-core, which the docs require on the desktop classpath.Heads-up: this is a paid, proprietary product
The Maven artifacts are published under the "Compose HotSwan License (Commercial)", not an OSS license. Hot reload needs both the matching JetBrains IDE plugin and a valid subscription billed through JetBrains Marketplace; the version must match the Gradle plugin's. Since this is a public sample repo, anyone building it now resolves a proprietary compile-time artifact. The build itself works fine unlicensed — hot reload is just inactive — so CI and contributors are not blocked.
Test plan
assembleDebug,:composeApp:jvmTest,compileKotlinIosSimulatorArm64,compileKotlinWasmJs,:agents:build,:mcp-server:buildall pass:androidApp— cannot be automatedKnown limitation it flagged
The plugin warns at compile time that iOS hot reload will silently no-op for two entry points, because its warm restart calls the entry as a zero-argument Obj-C class method:
CountryListViewController(onCountryClicked:)— note this parameter is currently unused in the bodyCountryInfoDetailedViewController(country:)AgentViewController()already has the required shape. Changing the other two touches the Swift call sites, so it is left out of this PR.🤖 Generated with Claude Code
https://claude.ai/code/session_01ReoMX8TjLpTkCocLiLVTuL