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

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