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The rollercoaster of releasing an Android, iOS, and macOS app with Kotlin Multiplatform Marco Gomiero @marcoGomier Senior Android Developer @ Airalo Google Developer Expert for Kotlin

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@marcoGomier feedflow.dev/ FeedFlow

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@marcoGomier feedflow.dev/ FeedFlow

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@marcoGomier FeedFlow feedflow.dev/

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@marcoGomier Android • “Easy” for an Android Developer • Sign the app • Upload to Play Store

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@marcoGomier • Sign the app • Provisioning profiles • Upload to TestFlight • All handled by Xcode (or manually on the CI) iOS

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@marcoGomier • JAR • “Manual” distribution • App Store macOS ❌

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@marcoGomier No Xcode, need to go manual \o/

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@marcoGomier macOS - “Manual” distribution • Sign the app • Notarization

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@marcoGomier

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@marcoGomier macOS - “Manual” distribution • Sign the app • Notarization • Distribute the app

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@marcoGomier

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@marcoGomier macOS - App Store • Sign the app • Provisioning profiles • Upload to TestFlight

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@marcoGomier Upload to TestFlight: Transporter (or CI) https://apps.apple.com/us/app/transporter/id1450874784?mt=12

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@marcoGomier

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@marcoGomier Fixed with Compose 1.6.10 https://github.com/JetBrains/compose-multiplatform/pull/4271

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@marcoGomier compose { desktop { application { macOS { minimumSystemVersion = "12.0" } } } } }

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@marcoGomier

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@marcoGomier https://developer.apple.com/documentation/security/app_sandbox/protecting_user_data_with_app_sandbox

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@marcoGomier

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@marcoGomier https://github.com/xerial/sqlite-jdbc/tree/master/src/main/resources/org/sqlite/native/Mac/aarch64

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@marcoGomier Target-specific assets compose.desktop.application.nativeDistributions { appResourcesRootDir.set(project.layout.projectDirectory.dir("resources")) } @marcoGomier

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@marcoGomier val isSandboxed = System.getenv("APP_SANDBOX_CONTAINER_ID") != null if (isSandboxed) { val resourcesPath = System.getProperty("compose.application.resources.dir") // sqlite-jdbc System.setProperty("org.sqlite.lib.path", resourcesPath) System.setProperty("org.sqlite.lib.name", "libsqlitejdbc.dylib") }

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@marcoGomier 🎉

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@marcoGomier Crash Reporting & Logging

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@marcoGomier Firebase Crashlytics

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@marcoGomier https://github.com/touchlab/CrashKiOS

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@marcoGomier Firebase Crashlytics Sentry Java SDK

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@marcoGomier https://github.com/touchlab/Kermit

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@marcoGomier internal expect fun crashReportingLogWriter(): LogWriter actual fun crashReportingLogWriter(): LogWriter = CrashlyticsLogWriter() actual fun crashReportingLogWriter(): LogWriter = SentryLogWriter()

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@marcoGomier I18n

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@marcoGomier https://github.com/adrielcafe/lyricist

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@marcoGomier val feedFlowStrings: Map = mapOf( Locales.It to ItFeedFlowStrings, Locales.En to EnFeedFlowStrings, Locales.De to DeFeedFlowStrings, ) Text(strings.searchHintTitle) let strings = feedFlowStrings["it"] ?? EnFeedFlowStrings Text(text = LocalFeedFlowStrings.current.feedUrl)

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@marcoGomier More reading https://www.marcogomiero.com/posts/2024/kmp-app-ci

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> Twitter: @marcoGomier > Github: prof18 > Website: marcogomiero.com > Mastodon: androiddev.social/@marcogom Thank you, and don’t forget to vote

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Bibliography / Useful Links • https: / / feedflow.dev/ • https: / / help.apple.com/itc/transporteruserguide/en.lproj/static.html#apd70774093eddb4 • https: / / developer.apple.com/documentation/security/app_sandbox/protecting_user_data_with_app_sandbox • https: / / github.com/JetBrains/compose-multiplatform/blob/master/tutorials/Native_distributions_and_local_execution/ README.md#adding-files-to-packaged-application • https: / / firebase.google.com/products/crashlytics • https: / / docs.sentry.io/platforms/java/ • https: / / github.com/touchlab/CrashKiOS • https: / / github.com/touchlab/Kermit • https: / / github.com/adrielcafe/lyricist • https: / / www.jetbrains.com/help/kotlin-multiplatform-dev/compose-images-resources.html#strings • https: / / www.marcogomiero.com/posts/2024/kmp-ci-android • https: / / www.marcogomiero.com/posts/2024/kmp-ci-ios • https: / / www.marcogomiero.com/posts/2024/kmp-ci-macos-github-releases • https: / / www.marcogomiero.com/posts/2024/kmp-ci-macos-appstore • https: / / www.marcogomiero.com/posts/2024/compose-macos-app-store/