הפיכת קוד הניווט למודולרי

// import androidx.navigation3.runtime.EntryProviderScope
// import androidx.navigation3.runtime.NavKey

fun EntryProviderScope<NavKey>.featureAEntryBuilder() {
    entry<KeyA> {
        ContentRed("Screen A") {
            // Content for screen A
        }
    }
    entry<KeyA2> {
        ContentGreen("Screen A2") {
            // Content for screen A2
        }
    }
}
ModularizationSnippets.kt

// import androidx.navigation3.runtime.entryProvider
// import androidx.navigation3.ui.NavDisplay
NavDisplay(
    entryProvider = entryProvider {
        featureAEntryBuilder()
    },
    // ...
)
ModularizationSnippets.kt

// import dagger.Module
// import dagger.Provides
// import dagger.hilt.InstallIn
// import dagger.hilt.android.components.ActivityRetainedComponent
// import dagger.multibindings.IntoSet

@Module
@InstallIn(ActivityRetainedComponent::class)
object FeatureAModule {

    @IntoSet
    @Provides
    fun provideFeatureAEntryBuilder() : EntryProviderScope<NavKey>.() -> Unit = {
        featureAEntryBuilder()
    }
}
ModularizationSnippets.kt

// import android.os.Bundle
// import androidx.activity.ComponentActivity
// import androidx.activity.compose.setContent
// import androidx.navigation3.runtime.EntryProviderScope
// import androidx.navigation3.runtime.NavKey
// import androidx.navigation3.runtime.entryProvider
// import androidx.navigation3.ui.NavDisplay
// import javax.inject.Inject

class MainActivity : ComponentActivity() {

    @Inject
    lateinit var entryBuilders: Set<@JvmSuppressWildcards EntryProviderScope<NavKey>.() -> Unit>

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            NavDisplay(
                entryProvider = entryProvider {
                    entryBuilders.forEach { builder -> this.builder() }
                },
                // ...
            )
        }
    }
}
ModularizationSnippets.kt

@Module
@InstallIn(ActivityRetainedComponent::class)
object FeatureADeepLinkModule {
    @IntoSet
    @Provides
    fun provideUserMatcher(): DeepLinkMatcher<*, *> {
        return UriDeepLinkMatcher(
            DeepLinkUri("www.example.com/users/{id}"),
            serializer<UserProfileKey>()
        )
    }
}
ModularizationSnippets.kt

@AndroidEntryPoint
class MainActivityWithDI : ComponentActivity() {
    @Inject
    lateinit var deepLinkMatchers: Set<@JvmSuppressWildcards DeepLinkMatcher<*, *>>

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        val request = DeepLinkRequest(intent = intent)
        val matchResult = deepLinkMatchers
            .mapNotNull { it.match(request) }
            .maxOrNull()

        val backStack = when (matchResult) {
            null -> listOf(HomeKey)
            is BackStackMatchResult<*, *> -> {
                @Suppress("UNCHECKED_CAST")
                matchResult.backStack as List<NavKey>
            }
            else -> listOf(matchResult.key)
        }
    }
}
ModularizationSnippets.kt