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The course focuses on the MVVM (Model-View-ViewModel) architecture in Android development using Kotlin. The MVVM is widely recommended due to its robustness, scalability, and ease of maintenance. It is a valuable skill to have for building high-performance Android applications.

Firstly, you will learn the basics of MVVM architecture and its advantages over other approaches to Android development. Then, you'll start from scratch and create layouts for a news application. Next, you'll use the Retrofit and OkHttp networking libraries and get to familiarize yourself with APIs. You'll get hands-on experience in storing data locally via the Room library. Finally, you'll be introduced to both the repository and ViewModel patterns, as well as how to work with the Paging library and deliver data to our fragments.

By the time you’re done with the course, you’ll be able to use MVVM in your Android projects, interact with APIs, store data locally, and implement pagination.

Mastering MVVM Architecture in Android Development using Kotlin

## Interfaces in architectures

Interfaces are blueprints of a class. In MVVM architecture, interfaces provide 100% abstraction since they only provide method signatures and fields without actual implementation. This serves as a contract between a programmer and the program they’re working with: all methods defined must be implemented.

Interfaces in Kotlin and Java 8 can have both `abstract` and `non-abstract` methods that can be implemented. However, `non-abstract` properties aren’t permitted.

Let’s look at an example.


# Interfaces in architectures

Interfaces are blueprints of a class. In MVVM architecture, interfaces provide 100% abstraction since they only provide method signatures and fields without actual implementation. This serves as a contract between a programmer and the program they’re working with: all methods defined must be implemented.

Interfaces in Kotlin and Java 8 can have both `abstract` and `non-abstract` methods that can be implemented. However, `non-abstract` properties aren’t permitted.

Let’s look at an example.


Learn how to write interfaces that perform HTTP operations to consume data from REST APIs.

Introduction

MVVM Architecture

Layouts

Layout Design Assessment

API

Android Web Services Assessment

Utility Classes

Repository Pattern

ViewModel Pattern

Android Business Logic Assessment

Views

Conclusion

Appendix

API Interface

Interfaces in architectures