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feat(KMP-8): add an iOS window-size adapter and wire it into the home screen#178

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js-jasinski wants to merge 8 commits into
matejdro:mainfrom
js-jasinski:feat/KMP-8-ios-window-size
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feat(KMP-8): add an iOS window-size adapter and wire it into the home screen#178
js-jasinski wants to merge 8 commits into
matejdro:mainfrom
js-jasinski:feat/KMP-8-ios-window-size

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@js-jasinski

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The Problem

The home screen decided phone vs tablet layout using an Android-only window-size check, so the shared screen had no way to make that decision on iOS.

Solution

  • add a shared isExpandedWidth() (expect/actual) that reports whether the width is the Material3 "Expanded" (tablet) size
  • Android uses the existing window size class; iOS uses the Compose window width vs the 840dp breakpoint
  • use it as the default for HomeScreenContent's tabletMode, and drop the inline Android-only calculation from HomeScreen

Developer Notes

  • This adds home/ui's first shared iOS code (iosMain).
  • Android behaves exactly as before, same 840dp "Expanded" breakpoint, just moved behind isExpandedWidth().
  • The previews still pass tabletMode explicitly, so they don't depend on a real window (and don't touch the Android-only requireActivity() path).

…ugin

Introduces a `library-kmp-module` convention plugin in buildSrc so modules can
target Android and iOS with Compose Multiplatform. Uses the AGP
`com.android.kotlin.multiplatform.library` plugin (avoids the
kotlin.android <-> kotlin.multiplatform conflict) and gates iOS targets to macOS.
Converts common-navigation to a Kotlin Multiplatform module via the
library-kmp-module convention.
Converts home/ui to a Kotlin Multiplatform module. All existing code moves to the
Android source set unchanged, and the shared source set is left empty, so iOS
compiles with nothing in it yet.

- switch home/ui to the multiplatform module convention
- move all sources and resources into androidMain, with no code changes
- apply the Metro, KSP and serialization plugins directly
- run showkase and the navigation compiler through kspAndroid
- keep the Accompanist permissions opt-in on the Android source set only
- drop the unused parcelize plugin
Moves the home screen's content and its navigation bar/rail into the shared source
set so the home screen's visuals run on both Android and iOS.

- move HomeScreenContent and the nav bar/rail into commonMain
- make it data-driven over a list of tabs (tab + icon + label) so it no longer
  depends on Android resources
- build that tab list from Android resources in the Android HomeScreen wrapper
- keep the kotlinova screen wrapper, window-size check and previews on Android
- add Compose Multiplatform material3 and foundation to commonMain
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