MVVM in Android- Model View View Model Tutorial with Project

What is MVVM and how do I use it in Android?
By the way, check out our Android Developer Learning path: bit.ly/3l6vG86
In this video, we talk about what Mvvm is and why you might want to use it. We also show some of the benefits of using Mvvm for your app architecture.
This is a second part to networking with retrofit where we are going to be introducing the Model View ViewModel Architecture which is an architecture recommended by google for developing android applications.
For those who might not understand generally what *Architecture patterns* are ****in android, they are patterns introduced to help developers properly structure project codes and separate core logic from the Activities or Fragment especially in large or real mobile applications that might require feature changes while it grows as it is very helpful in the maintenance of the project while adding and removing features. The most popularly used architectures on android are
MVC - Model View Controller
MVP - Model View Presenter
MVVM -Model View ViewModel
We will be discussing MVVM
MVVM encourages separation of concern and in this case making sure that the business logic is entirely separated from the view. You can take the business logic to be the logic that controls the main features of the app and view it to be the user interface elements that allow the user to interact with the app.
Model - The model comprises of the Repository and the ApiService
View - The view is the MainActivity
ViewModel - The ViewModel is the MainViewModel
Creating the Repository class
The repository class is usually the single source of truth (SSOT)in a project, for instance, if you are going to be depending on two data sources say an API and a local database then this class serves as a mediator between the two sources and knows where to get the data from so that the viewmodel is solely responsible for making the data available for the view to observe.
The ViewModel Class
Before you use the ViewModel class you have to add these dependencies to your project. Open build.gradle and add the following dependencies.
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[@tutorialsEU]

Btw, here you will find part one: kzbin.info/www/bejne/qWLNonZtZdqCbbM

[@kevinmathenge1397]

I've been really struggling with this. Thanks a ton for the in-depth explanation and really easy to follow tutorial.

[@tutorialsEU]

Wow, this video needs more views :P

[@OmerFarukUcer]

I can't understand some codes in the video.What should I do for learn their usage?Or how can I learn that easily?

[@MichaelJohnson-ze6ql]

having an issue around 20:20 where the MainAdapter when passed characters as an argument is still red. Not sure why

[@ewomer100]

Any way to show how to do this with Jetpack Compose?

[@joshross7757]

You're a gem 🙂

[@thaboncube6991]

Thanks for the tutorial

[@electroe2143]

thank for this great useful video.

[@tutorialsEUAndroid]

Glad it was helpful!

[@mouhamedmokhtaroubaya5277]

i have this error : Cannot create an instance of class ViewModel

[@LifelinesStories786]

great i wish ur courses were free on udemy😅

[@mysticmanish5002]

hi sir can you make the video on advanced fitness app in kotlin ....plz make that course and i will make sure that i m the first student to buy that course.

[@FarooqAhmad-lr1fx]

nice

[@hassanammer7854]

This is not true tutorial it's just copy and paste 😑