Build on compileSdk/targetSdk 37 (Android 17): AGP 9.1 + Gradle 9.3 + Kotlin 2.2

[rahul-lohra]

Goal

Raise compileSdk/targetSdk from 35 → 37 (Android 17). The installed platform is the stable, minor-versioned android-37.0, which the old toolchain (AGP 8.5.2) cannot even resolve (Failed to find Platform SDK … android-37). API 37 has a hard floor of AGP 9.1, and AGP 9 drops Kotlin 1.9 — so this is necessarily a full toolchain upgrade, not a one-line SDK bump.

Note: this PR depends on the GetStream/stream-build-conventions-android#70 — streamConventions must point at a published version that supports AGP 9 (currently 0.13.2-SNAPSHOT in the catalog; pin to the released version before merge).

Implementation

Toolchain Updates

Component	From	To	Reason
compileSdk / targetSdk	35	37	Target Android 17
android.suppressUnsupportedCompileSdk	34	37	Match the new compileSdk
Android Gradle Plugin	8.5.2	9.1.1	Minimum for API 37 (9.0 caps at 36.1)
Gradle	8.8	9.3.1	Required by AGP 9.1
Kotlin	1.9.25	2.2.10	AGP 9 removes Kotlin 1.9 support
KSP	1.9.25-1.0.20	2.2.10-2.0.2	Match Kotlin 2.2.10
Compose Compiler Gradle plugin (org.jetbrains.kotlin.plugin.compose)	not applied (legacy kotlinCompilerExtensionVersion)	enabled	Required on Kotlin 2.0+; replaces the legacy compiler-extension config

Dependency bumps forced by Gradle 9 / AGP 9

Dependency	From	To	Reason
Wire	4.7.0	5.5.1	4.7 used the removed Gradle-internal FileOrUriNotationConverter
baseline-profile / benchmark	1.2.3	1.5.0-alpha07	Older versions can't resolve AGP 9's TestExtension
Hilt / Dagger	2.52	2.60.1	2.52's bytecode transform doesn't run under AGP 9
streamConventions (build-conventions plugin)	0.13.1	AGP-9-compatible build	0.13.1 calls block-DSLs removed from AGP 9's CommonExtension
stream-log-android	1.3.1	1.3.4	To fix shared namespace for io.getstream.log as AGP 9 gives hard error if two different libraries share same namespace

Build logic — build-logic/convention/ (AGP 9 DSL migration)

• CommonExtension<*,*,*,*,*,*> → non-generic CommonExtension everywhere
• Removed block-DSLs → getter/property access (buildFeatures.compose, lint.abortOnError, productFlavors container)
• KotlinAndroid.kt: kotlinOptions → compilerOptions (the old DSL is a hard error under -Werror)
• AndroidCompose.kt: apply the Compose plugin, stabilityConfigurationFiles, dropped kotlinCompilerExtensionVersion

Build scripts (Gradle 9 / AGP 9 API removals)

• Root build.gradle.kts: kotlinOptions → compilerOptions; Project.exec { cp … } → File.copyTo (removed in Gradle 9)
• settings.gradle.kts: dropped removeUnusedEntriesAfterDays (removed in Gradle 9)
• core + benchmark: managedDevices.devices → managedDevices.localDevices
• core: buildDir → layout.buildDirectory; packaging.exclude() → resources.excludes.add(); srcDir(Provider) → concrete File
• demo-app: buildConfigFields?.put (now nullable in AGP 9); toLowerCase() → lowercase()

Source Code Changes (Kotlin 2.2 strictness)

• StreamVideoClient.kt: LruCache(maxSize = 100) → LruCache(100) (named args prohibited on Java functions)
• PermissionManager.kt: dropped inline on stored constructor vals (inline property can't have a backing field)
• ForegroundServicePermissionManager.kt: hardcoded 37 → Build.VERSION_CODES.CINNAMON_BUN (constant now available at compileSdk 37)

Public API

• Regenerated .api baselines for core and ui-compose (binary-compatibility-validator) to reflect Kotlin-2.2 signature changes.

🎨 UI Changes

None

Testing

• ✅ CLI compilation of every module against SDK 37: core, ui-core, ui-xml, ui-compose, filters-video, previewdata, demo-app (development/debug incl. Hilt KSP), all four tutorials/*, and metrics.
• ⬜ Not yet run (recommend before merge): full unit-test suite (testDebugUnitTest), apiCheck, spotlessCheck, and an on-device smoke test of the demo app on an Android 17 device/emulator — especially the incoming-call ringtone path touched by the CINNAMON_BUN change.
• ⚠️ IDE note: syncing this branch needs an Android Studio build that supports AGP 9.1 (2026+); older Studios fail sync with a Library … null model error. CLI/CI is unaffected.

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