# Libraries and Frameworks Used in alfaazplus/quranapp: Complete Android Tech Stack

> Explore the Android tech stack of alfaazplus quranapp. Discover Kotlin, Jetpack Compose, Retrofit, ExoPlayer, and Gradle Version Catalogs powering this app.

- Repository: [AlfaazPlus/quranapp](https://github.com/alfaazplus/quranapp)
- Tags: deep-dive
- Published: 2026-02-24

---

**The alfaazplus/quranapp project is built with Kotlin and Jetpack Compose, utilizing a comprehensive suite of libraries including Retrofit for networking, ExoPlayer for media, and SmoothRefreshLayout for UI interactions, all managed through Gradle Version Catalogs.**

The **QuranApp** Android application demonstrates modern Android development practices by integrating declarative UI frameworks with robust networking and media handling capabilities. According to the source code in the `alfaazplus/quranapp` repository, the project leverages third-party dependencies declared in `app/build.gradle.kts` and centrally managed via [`gradle/libs.versions.toml`](https://github.com/alfaazplus/quranapp/blob/main/gradle/libs.versions.toml). This article examines the specific libraries powering the application’s architecture.

## Jetpack Compose and Modern UI Stack

The application adopts **Jetpack Compose** as its primary UI framework, enabling fully declarative interface development.

### Declarative Interface Components

In `app/build.gradle.kts` (lines 92‑104), the project imports the complete Compose Bill of Materials (`composeBom = "2024.09.02"`), including:

- `androidx.compose.runtime` and `androidx.compose.ui` for core composable infrastructure
- `androidx.compose.foundation` and `androidx.compose.material3` for Material Design 3 components
- `androidx.compose.ui:ui-tooling` for development-time preview support
- `androidx.compose.runtime:runtime-livedata` for reactive data binding

The project also includes a local UI library module via `project(":peacedesign")` declared at line 90, which houses shared design components used throughout the application.

```kotlin
@Composable
fun QuranVerseScreen(verse: String) {
    Scaffold(
        topBar = { TopAppBar(title = { Text("Quran Verse") }) }
    ) {
        Text(
            text = verse,
            style = MaterialTheme.typography.bodyLarge,
            modifier = Modifier.padding(16.dp)
        )
    }
}

```

## Networking Layer and Data Serialization

For API communication, the application implements **Retrofit 2** combined with **Kotlinx Serialization**, configured in `app/build.gradle.kts` (lines 129‑133).

This stack includes:
- `com.squareup.retrofit2:retrofit` for HTTP client operations
- `org.jetbrains.kotlinx:kotlinx-serialization-json` for JSON parsing
- `com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter` for seamless integration between Retrofit and Kotlinx Serialization

```kotlin
interface QuranApi {
    @GET("quran/verses/{surah}/{ayah}")
    suspend fun getVerse(
        @Path("surah") surah: Int,
        @Path("ayah") ayah: Int
    ): VerseResponse
}

val retrofit = Retrofit.Builder()
    .baseUrl("https://api.quran.com/")
    .addConverterFactory(Json { ignoreUnknownKeys = true }.asConverterFactory("application/json".toMediaType()))
    .build()

val api = retrofit.create(QuranApi::class.java)

```

## Media Playback Infrastructure

Audio recitation features rely on **ExoPlayer**, the high-performance media playback library from Google. The dependencies are specified in `app/build.gradle.kts` (lines 119‑122):

- `exoplayer-core` for base playback engine
- `exoplayer-ui` for standard player interface components  
- `extension-mediasession` for media session and notification integration

```kotlin
val player = ExoPlayer.Builder(context).build().apply {
    setMediaItem(MediaItem.fromUri("https://example.com/recitation.mp3"))
    prepare()
    playWhenReady = true
}

// In a Compose UI
AndroidView(factory = { PlayerView(context).apply { player = this@apply } })

```

## Core AndroidX Libraries and Architecture

The foundation of the app rests on extensive **AndroidX** support libraries declared in `app/build.gradle.kts` (lines 105‑118).

### Lifecycle and Background Processing

Key architectural components include:
- `androidx.lifecycle:lifecycle-runtime-ktx`, `lifecycle-service`, and `lifecycle-viewmodel-compose` for lifecycle-aware components
- `androidx.work:work-runtime-ktx` (lines 144‑146) for deferred background task scheduling
- `androidx.core:core-ktx` and `androidx.activity:activity-ktx` for Kotlin extensions and activity result handling

### Data Persistence with DataStore

For type-safe key-value storage, the project uses `androidx.datastore:datastore-preferences` (line 144), replacing traditional SharedPreferences with a coroutines-friendly solution.

## UI Enhancement Libraries

Beyond standard Compose components, the application incorporates **SmoothRefreshLayout** for advanced pull-to-refresh functionality, configured in `app/build.gradle.kts` (lines 134‑141).

The implementation includes:
- `srl-core` for base refresh mechanics
- `srl-ext-classics`, `srl-ext-material`, and `srl-ext-dynamic-rebound` for visual header styles
- `srl-ext-horizontal` and `srl-ext-two-level` for specialized layout behaviors

```kotlin
SmoothRefreshLayout(
    onRefresh = { /* reload data */ },
    header = ClassicHeader()
) {
    LazyColumn {
        items(verseList) { verse ->
            Text(verse.text, modifier = Modifier.padding(8.dp))
        }
    }
}

```

### Material Design and View Binding

Additional UI utilities declared in `app/build.gradle.kts` (lines 123‑128) include:
- `com.google.android.material:material` for Material Design components not yet available in Compose
- `com.android.databinding:viewbinding` for view binding generation in legacy XML layouts
- `org.apache.commons:commons-lang3` and `com.google.guava:guava` for string manipulation and collection utilities

## Build Configuration and Dependency Management

The project employs **Gradle Version Catalogs** to centralize dependency versions. All library versions are defined in [`gradle/libs.versions.toml`](https://github.com/alfaazplus/quranapp/blob/main/gradle/libs.versions.toml) (lines 31‑88), providing a single source of truth for upgrades.

Notable version entries include:
- `androidx-coreKtx = "1.15.0"`
- `composeBom = "2024.09.02"`

The build also enables **core library desugaring** via `com.android.tools:desugar_jdk_libs` (line 123), allowing modern Java APIs to function on older Android runtime versions.

## Summary

- **Primary Language and UI**: Kotlin with Jetpack Compose (Material 3) forms the core development stack, declared in `app/build.gradle.kts` lines 92‑104.
- **Networking**: Retrofit 2 with Kotlinx Serialization handles API communication and JSON parsing (lines 129‑133).
- **Media**: ExoPlayer powers audio recitation playback with media session support (lines 119‑122).
- **Architecture**: AndroidX Lifecycle, WorkManager, and DataStore manage application state and background operations (lines 105‑118, 144‑146).
- **UI Enhancements**: SmoothRefreshLayout provides advanced pull-to-refresh capabilities (lines 134‑141).
- **Build System**: Gradle Version Catalogs in [`gradle/libs.versions.toml`](https://github.com/alfaazplus/quranapp/blob/main/gradle/libs.versions.toml) centrally manage all dependency versions for consistent upgrades.

## Frequently Asked Questions

### What networking library does alfaazplus/quranapp use for API calls?

The application uses **Retrofit 2** (`com.squareup.retrofit2:retrofit`) combined with **Kotlinx Serialization** for JSON parsing. This configuration appears in `app/build.gradle.kts` at lines 129‑133, utilizing `retrofit2-kotlinx-serialization-converter` for type-safe API responses without reflection-based parsers.

### How does the QuranApp handle audio playback for recitations?

Audio functionality relies on **ExoPlayer**, specifically the core, UI, and media session extensions declared at lines 119‑122 in `app/build.gradle.kts`. This library provides high-performance audio streaming with support for background playback controls through the media session extension.

### Does the project use Jetpack Compose or traditional XML layouts?

The project primarily uses **Jetpack Compose** for its user interface, importing the Compose Bill of Materials version 2024.09.02 along with Material 3 components as shown in `app/build.gradle.kts` (lines 92‑104). However, it maintains view binding capabilities (`com.android.databinding:viewbinding`) for any remaining XML-based components.

### Where are the dependency versions managed in the QuranApp repository?

All library versions are centralized in **[`gradle/libs.versions.toml`](https://github.com/alfaazplus/quranapp/blob/main/gradle/libs.versions.toml)** (lines 31‑88) using Gradle Version Catalogs. This file serves as the single source of truth for version numbers, while `app/build.gradle.kts` references these catalog entries, making dependency upgrades consistent across the multi-module project including the local `:peacedesign` module.