Technology Stack and Dependencies

DocuSnap-Frontend relies on multiple libraries and frameworks to provide its functionality. This page details the runtime and build dependencies of the application.

Runtime Dependencies

1. UI Framework

• Jetpack Compose (androidx.compose.*)
  • Modern declarative UI framework
  • Core components: ui-core, ui-tooling, foundation, material3
  • Version: Latest BOM (Bill of Materials)
• Material Design 3 (androidx.material3)
  • Implements Material Design guidelines
  • Provides modern UI components and theming
• Navigation Compose (androidx.navigation:navigation-compose)
  • Handles navigation between screens
  • Supports deep linking and type-safe navigation

2. Architecture Components

• Jetpack ViewModel (androidx.lifecycle:lifecycle-viewmodel-ktx)
  • Manages UI-related data through lifecycle changes
  • Survives configuration changes
• Kotlin Coroutines (org.jetbrains.kotlinx:kotlinx-coroutines-android)
  • Handles asynchronous operations
  • Provides structured concurrency
• Flow (part of kotlinx-coroutines)
  • Implements reactive programming
  • Supports data streaming and transformation
• Lifecycle Components (androidx.lifecycle:lifecycle-runtime-ktx)
  • Manages Android component lifecycles
  • Provides lifecycle-aware components

3. Network Communication

• Retrofit (com.squareup.retrofit2:retrofit)
  • Type-safe HTTP client
  • Version: 2.9.0
• OkHttp (com.squareup.okhttp3:okhttp)
  • Efficient HTTP client
  • Provides interceptors and caching
  • Version: 4.12.0
• Moshi and Gson (for JSON processing)
  • com.squareup.retrofit2:converter-gson
  • com.squareup.retrofit2:converter-moshi
  • Handles JSON serialization and deserialization

4. Local Storage

• Room Database (androidx.room.*)
  • Provides abstraction layer over SQLite
  • Supports type-safe queries and data access
  • Version: 2.7.2
• SharedPreferences
  • Stores simple key-value pairs
  • Used for application settings

5. Image Processing

• CameraX (androidx.camera.*)
  • Simplifies camera implementation
  • Components: camera-camera2, camera-lifecycle, camera-view, camera-extensions
  • Version: 1.3.0
• Coil (io.coil-kt:coil-compose)
  • Image loading library
  • Efficiently loads and caches images
  • Version: 2.5.0

6. Serialization

• Kotlinx Serialization
  • Handles object serialization and deserialization
  • Used for data model serialization

Build Dependencies

1. Build Tools

• Gradle Build System
  • Manages build process and dependencies
  • Uses Kotlin DSL for build scripts
• Kotlin Gradle Plugin
  • Enables Kotlin compilation
  • Configures Kotlin compiler options
• Android Gradle Plugin
  • Provides Android-specific build capabilities
  • Configures Android build process

2. Compilation Tools

• Kotlin Compiler
  • Compiles Kotlin source code
  • Supports modern language features
• R8 Code Optimizer
  • Performs code shrinking and optimization
  • Not currently enabled in the project
• Android SDK Tools
  • Provides Android platform tools and APIs
  • Used for building Android applications

3. Resource Processing

• Android Resource Compiler
  • Processes Android resource files
  • Generates R.java file
• Resource Optimization Tools
  • Optimizes drawables and other resources
  • Reduces application size

Dependency Relationship Diagram

The main dependency relationships in the application are as follows:

Android Runtime (ART)
├── Jetpack Compose
│   ├── Material Design 3
│   └── Navigation Compose
├── Retrofit
│   └── OkHttp
├── Room Database
├── CameraX
└── Kotlin Standard Library
    ├── Coroutines
    └── Flow

Dependency Management

The application uses Gradle’s dependency management system with the following features:

1. Version Catalogs

• Centralizes dependency versions
• Simplifies version updates
• Example from build.gradle.kts:

  implementation(platform(libs.androidx.compose.bom))
  implementation(libs.androidx.ui)
  implementation(libs.androidx.ui.graphics)
  implementation(libs.androidx.material3)
  

2. Dependency Configurations

• Uses appropriate configurations (implementation, api, etc.)
• Minimizes unnecessary transitive dependencies
• Example:

  implementation("androidx.core:core-ktx:1.12.0")
  implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.7.0")
  testImplementation("junit:junit:4.13.2")
  

3. Dependency Constraints

• Resolves version conflicts
• Enforces specific versions when needed
• Example:

  constraints {
      implementation("org.jetbrains.kotlin:kotlin-stdlib:1.9.0")
  }
  

Build Configuration

The application is configured with the following build parameters:

• Compile SDK Version: 35
• Minimum SDK Version: 33 (Android 13)
• Target SDK Version: 35
• Java Compatibility Version: Java 11
• Kotlin Version: Latest stable
• Compose Compiler Version: Compatible with Kotlin version

These dependencies and configurations ensure that DocuSnap-Frontend is built with modern, robust libraries that provide the necessary functionality while maintaining compatibility with the target Android versions.