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kotlin-mvvm

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MVVM(Model View ViewModel) sample in Kotlin using the components ViewModel, LiveData, the libraries Retrofit, Glide and Mockito for testing.

MVVM Pattern (Model View ViewModel)

Demo

Architecture

Flow

Screenshots

<img src="assets/screenshot.png" height="480"> <img src="assets/screenshot_error.png" height="480"> <img src="assets/screenshot_empty.png" height="480">

Slides

Android MVVM https://docs.google.com/presentation/d/1nTwtU8OWYs_8Q3i_3hOPAWodDpDKzO--uA-4b6LUr8g/edit?usp=sharing

Android MVVM Clean https://docs.google.com/presentation/d/1luTzvqGaMjVycEx109-AjYIj3FIpXYAt3Mnu-gjqxtc/edit?usp=sharing

Updates [July 2022]

• Added state flow. branch State Flow

• Added jetpack compose. branch compose

• Added rxjava library. branch rx-kotlin

• Add navigation component library. branch navigation-component

• Added viewbinding support and kotlin extensions were removed. branch viewbinding

• Added dependency injection with Hilt, included android tests branch hilt

• Added unit tests with Flow branch flow

• Added kotlin Flow and fragment ktx branch flow

• Room branch room

• Added View Binding branch viewbinding

• Dependencies versions were updated and ViewModelProviders class was removed (deprecated). all branches

• Added Coroutines with retrofit and sealed classes to replace callbacks. Included testing with Coroutines. branch coroutines

• Added Koin, dependency injection framework written in Kotlin. Included integration with Mockito for testing (11th Oct) branch koin

• Added Unit Testing with Mockito (27th May) Link

• Fix load images android P by Carlos Ugaz carlosgub Link

Dependencies

• Retrofit 2 version: '2.3.0'
• OkHttp 3 version: '3.4.1'
• Glide version: '4.9.0'
• AndroidX version: '1.2.0'
• Arch Lifecycle version: '2.4.0'
• Mockito version: '2.27.0'
• Arch Testing version: '2.4.0'

References

• State Flow https://developer.android.com/kotlin/flow/stateflow-and-sharedflow
• ViewModel https://developer.android.com/topic/libraries/architecture/viewmodel
• LiveData https://developer.android.com/topic/libraries/architecture/livedata
• Android Architecture Blueprints https://github.com/googlesamples/android-architecture
• Android Jetpack: ViewModel https://www.youtube.com/watch?v=5qlIPTDE274
• Mockito : https://site.mockito.org/
• Unit Testing + Mockito + Kotlin + Architecture components https://medium.com/@marco_cattaneo/unit-testing-with-mockito-on-kotlin-android-project-with-architecture-components-2059eb637912
• Junit + LiveData https://jeroenmols.com/blog/2019/01/17/livedatajunit5/

Contributing and reporting issues

If you want to contribute in this repository, please send me a pull request or if you want to report some issues please send at https://github.com/emedinaa/kotlin-mvvm/issues

I appreciate any question or comment. Also, if you consider it useful, you can give me a star ⭐ ⭐ ⭐.