ioannisa

Feature	CameraX 1.5 Support
Zero-Shutter Lag	✅ CAPTURE_MODE_ZERO_SHUTTER_LAG (since 1.2)
120/240fps Slow-Motion	✅ HighSpeedVideoSessionConfig
RAW/DNG Capture	✅ OUTPUT_FORMAT_RAW / OUTPUT_FORMAT_RAW_JPEG
HDR + 60fps + Stabilization	✅ Feature Group API
Manual ISO/Shutter	✅ Via Camera2Interop
Concurrent Cameras	✅ ConcurrentCamera API

ioannisa

Aspect	Koin Annotations (KSP)	Koin Compiler Plugin
Compile-time verification	✅	✅
Classes must be annotated	✅ Required (@Single, @Factory)	❌ Optional
DSL gets compile-time wiring	❌	✅
Requires KSP Gradle setup	✅	❌
Separate build step	✅ (KSP runs separately)	❌ (runs during normal compilation)
Incremental build impact	Slower	Faster

ioannisa

Feature	Hilt	Koin (Current)	Koin (With Plugin)
Compile-time verification	✅	❌ (unless Annotations)	🔜 (coming soon)
KMP support	❌	✅	✅
No annotation processing	❌	✅	✅
Coding Style	Annotations Mandatory	DSL (Standard)	Hybrid (DSL or Native Annotations)
Clean DSL	➖	✅	✅✅ (Concise: single<T>())
Requires KAPT/KSP	✅ (KAPT/KSP)	❌ (or ✅ KSP if using Annotations)	❌ (Native Compiler)
Build speed	Slower (due to KAPT/KSP)	Fast	Fast (No KSP overhead)
Runtime lookup	Direct factory reference	Key-based (~0.005ms)	Reduced overhead

ioannisa

Parameter Type	Generated Code
val repo: Repository	get()
val config: Config? = null	getOrNull()
val lazy: Lazy<Service>	inject()
@Named("prod") val db: Database	get(named("prod"))
@InjectedParam val id: String	it.get()

ioannisa

Component	Scope	Lifetime
SingletonComponent	@Singleton	Entire app
ActivityRetainedComponent	@ActivityRetainedScoped	Survives configuration changes
ViewModelComponent	@ViewModelScoped	ViewModel lifetime
ActivityComponent	@ActivityScoped	Activity lifetime
FragmentComponent	@FragmentScoped	Fragment lifetime

ioannisa

Aspect	True DI (Hilt)	Service Locator (Koin DSL)
Compile-time	Generates factory classes	Generates definition lambdas
Runtime lookup	Direct factory reference (type-safe graph)	Definition index by key (~0.005ms)
Instance creation	Runtime (via factory.get())	Runtime (execute lambda)
Missing dependency	Build fails	Runtime crash (or build fails with Annotations/Plugin)
Build time	Slower (annotation processing)	Faster (no KSP/KAPT)
Your classes	Framework-agnostic	Framework-agnostic

ioannisa

Manual DI	With a Framework
You write the container class	Framework generates/manages it
You manually track dependencies	Framework builds the dependency graph
You manage object lifecycles	Framework handles scoping automatically
Errors surface at runtime	Errors caught at compile time (Hilt) or startup (Koin)
Android components need workarounds	Framework integrates directly with Activities, Fragments, ViewModels

ioannisa

Constraint	Winner
Kotlin Multiplatform	Koin (Hilt doesn't work)
Must have compile-time DI verification	Hilt, or Koin with Annotations/Plugin
Slow builds are blocking productivity	Koin
Team already knows Dagger	Hilt
Team new to DI	Koin
Google/Jetpack alignment required	Hilt
Runtime performance	Both fast (Hilt: direct reference, Koin: ~0.005ms lookup)

ioannisa

Aspect	Hilt	Koin
Compile-time	Generates factory classes	Generates definition lambdas
Runtime lookup	Direct factory reference (type-safe graph)	Definition index by key (~0.005ms)
Instance creation	Runtime (via factory.get())	Runtime (execute lambda)
Missing dependency	Build fails	Runtime crash (or build fails with Annotations/Plugin)
Build time	Slower (annotation processing)	Faster (no KSP/KAPT)
Your classes	Framework-agnostic	Framework-agnostic

ioannisa

@Composable
fun <T>ObserveEffects(
    flow: Flow<T>,
    key1: Any? = null,
    key2: Any? = null,
    onEvent: suspend (T) -> Unit
) {
    val lifecycleOwner = LocalLifecycleOwner.current