JSONPlaceholder Android APP

This application shows the post data and their details from JSONPlaceholder using MAD (Modern Android Development) skills.

Table of Contents

• Introduction
• Architecture
• Getting Started
• Libraries Used
• Best Practices and Considerations

Introduction

This project is a sample Android application built using Kotlin, implementing the MVVM (Model-View-ViewModel) architectural pattern. The app fetches data from a remote server and stores it locally using the Room database. The app uses Retrofit for network calls, Hilt for dependency injection, and Room for local data persistence.

Architecture

The app follows the MVVM architectural pattern with UI and Data layers. The main components of the app are: UI layer: Responsible for rendering the UI and user interactions. Data layer: Responsible for handling the data flow between the UI and the remote server or local database. In addition, the app uses Repositories to handle data operations, providing a single source of truth for the application.

Getting Started

• To run the app, follow these steps:
• Clone this repository to your local machine.
• Open the project using Android Studio.
• Connect an Android device or use an emulator.
• Build and run the app. Language and Libraries Used

Kotlin

Kotlin is a modern, expressive, and safe programming language fully interoperable with Java. It is used as the primary language for this project.

Benefits:

• Concise and expressive syntax
• Enhanced safety with nullability checks and immutability
• Extension functions for cleaner and more readable code
• Support for coroutines for efficient concurrency handling

Retrofit

Retrofit is a type-safe HTTP client for Android and Java. It is used for making network calls in this project.

Benefits:

• Type-safe and easy-to-use API
• Built-in support for various serialization libraries
• Interceptors for easy handling of headers and logging
• Support for synchronous and asynchronous calls

Hilt

The hilt is a dependency injection library for Android built on top of Dagger. It simplifies the process of providing dependencies to various components of the application.

Benefits:

• Simplifies the setup process for dependency injection
• Provides compile-time validation of dependencies
• Reduces boilerplate code
• Supports Android Jetpack components

Room

Room is an SQLite object-mapping library for Android that provides an abstraction layer over SQLite and simplifies database operations.

Benefits:

• Compile-time checks for SQL queries
• Clean and simple API for database operations
• Support for LiveData and RxJava
• Easy integration with other Android components

Best Practices and Considerations

While developing this project, we considered the following best practices and guidelines to ensure high-quality, maintainable, and scalable code:

• Code organization: Followed the recommended package structure for organizing code, separating components by feature and responsibility. Performance: Used efficient data structures and algorithms to ensure optimal performance. Utilized Kotlin coroutines for efficient and non-blocking network and database operations.
• Scalability: Designed the app with future enhancements in mind, adhering to the SOLID principles to allow easy addition and modification of features.
• Error handling: Implemented proper error handling for network calls and database operations. Provided appropriate error messages to users and logged errors for debugging purposes.
• Testing: Wrote unit tests for the ViewModel and Repository layers to ensure correct behavior. Performed integration tests to verify proper interaction between components.