Weather application example with Android Architecture components and Clean Architecture

Weather app that shows how to architect an android app in a clean architecture with kotlin coroutines. It simply shows a list of weather forecast that is fetched from open api : Open Weather Map

Technical

• MVVM
• Clean Architecture
• Dependency Injection
• Service Locator

Libraries

Android Jetpack

• ViewBinding A feature that allows you to more easily write code that interacts with views..

• Navigation Navigation refers to the interactions that allow users to navigate across, into, and back out from the different pieces of content within your app.

• LiveData Build data objects that notify views when the underlying database changes.

• ViewModel Store UI-related data that isn't destroyed on app rotations. Easily schedule asynchronous tasks for optimal execution.

Database

• Room The Room persistence library provides an abstraction layer over SQLite to allow fluent database access while harnessing the full power of SQLite

HTTP

• Retrofit2 Type-safe HTTP client for Android and Java by Square, Inc.

• OkHttp An HTTP+HTTP/2 client for Android and Java applications.

Coroutines

• Kotlin Coroutines Coroutines is a rich library for coroutines developed by JetBrains. It contains a number of high-level coroutine-enabled primitives that this guide covers, including launch, async and others.

DI

• Koin A pragmatic lightweight dependency injection framework for Kotlin developers.

Unit Test

• Mockk MockK is a library for mocking written in Kotlin.As a native library, it helps our teams to write clean and concise code on testing Kotlin applications instead of using incommodious wrappers of Mockito or PowerMock

• Junit JUnit is a simple framework to write repeatable tests. It is an instance of the xUnit architecture for unit testing frameworks.

Checklist

• Programming language: Kotlin
• Design app 's architecture (MVVM - Clean Architecture)
• Apply LiveData mechanism
• UI should be looks like in attachment.
• Write Unit Tests
• Acceptance Tests
• Exception handling
• Caching handling
• Secure Android app from:
  • Decompile APK
  • Rooted device
  • Data transmission via network
  • Encryption for sensitive information
• Accessibility for Disability Supports:
  • Talkback: Use a screen reader. b. Scaling Text: Display size and font size: To change the size
  • items on your screen, adjust the display size or font size.
• Entity relationship diagram for the database and solution diagrams for the components, infrastructure design if any.
• Readme file includes:
  • Brief explanation for the software development principles,patterns & practices being applied
  • Brief explanation for the code folder structure and the key Java/Kotlin libraries and frameworks being used
  • All the required steps in order to get the application run on local computer
  • Checklist of items the candidate has done.