key-libraries

name: key-libraries description: 'Library stack reference for AniTrend. Use when selecting dependencies, understanding framework usage, and aligning integrations with established project conventions.'

Skill: Key Libraries and Frameworks

Overview

AniTrend v2 uses a combination of standard Android Jetpack libraries and in-house support libraries. All versions are centrally managed in gradle/libs.versions.toml; use the generated libs.* accessors rather than hardcoded coordinates.

For AniTrend's repo-specific Android wrappers around system services, theme/configuration helpers, notifications, deep links, and app-shell behavior, read .agents/skills/android-platform-patterns/SKILL.md before adding a new helper API.

Jetpack components

• Lifecycle + ViewModel — lifecycle-aware holders for UI state.
• Room — SQLite ORM; entities, DAOs, and migrations live in :data:* modules.
• Paging — PagingData / Pager drives infinite-scroll lists; reuse the existing setup rather than building a custom scroll mechanism.
• WorkManager — schedules background jobs in :task:* modules.
• Navigation Compose — drives screen routing via NavHost; see :app:navigation.

In-house support libraries (via JitPack)

All versions are declared in gradle/libs.versions.toml.

Networking

• Retrofit + OkHttp — HTTP client; shared configuration injected by buildSrc.
• retrofit-graphql — AniTrend's custom Retrofit converter for GraphQL requests.
• Kotlinx Serialization — JSON serialization; configured alongside Retrofit.
• Chucker — Debug HTTP traffic inspector; only included in debug builds. Before modifying a serializer, response mapper, or UI data assumption that depends on a live API response, inspect the response recorded by Chucker in the debug build to confirm the actual payload shape.

Image loading

• Coil — Configured in app/core/src/main/kotlin/co/anitrend/core/koin/Modules.kt with GIF, SVG, and video-frame support plus tuned memory/disk caches. Use the Koin-provided ImageLoader singleton rather than creating ad-hoc loaders.

UI and theming

• Material3 Compose — primary design system; use MaterialTheme tokens for colors and typography.
• support-arch theme — AniTrendTheme3 and PreviewTheme wrappers; apply them in composables and previews.
• AniTrend Android core UI — :android:core owns repo-specific theme, configuration, helper, and Compose utility surfaces consumed by the app shell and feature modules.
• android-emojify — Emoji parsing/rendering exposed as EmojiManager singleton via Koin; registered in app/core/src/main/kotlin/co/anitrend/core/koin/Modules.kt.

Dependency injection

• Koin — loaded at startup via InjectorInitializer. See .agents/skills/koin-module-wiring/SKILL.md for wiring conventions.

Logging and analytics

• Timber — added globally; use Timber.d/e/w instead of Log.* or println.
• Firebase Analytics + Crashlytics — enabled only in the google product flavor via buildSrc plugin logic. Always gate analytics calls behind a flavor check. If an analytics helper exists, prefer it over a raw flavor check; if no helper exists, use BuildConfig and leave a TODO to extract a helper.

Testing

• JUnit 4 — base test runner.
• MockK — Kotlin-idiomatic mocking; prefer mocking interfaces over concrete classes.
• Turbine — Flow testing; use turbine to assert emissions from DataState flows.
• kotlinx-coroutines-test — runTest, StandardTestDispatcher, or UnconfinedTestDispatcher for coroutine tests.
• Test dependencies are auto-added to every module by DependencyStrategy.kt; no manual declaration needed.
  • See buildSrc/src/main/java/co/anitrend/buildSrc/plugins/strategy/DependencyStrategy.kt