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How to Build Android Apps with Kotlin

You're reading from   How to Build Android Apps with Kotlin A hands-on guide to developing, testing, and publishing your first apps with Android

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Product type Paperback
Published in Feb 2021
Publisher Packt
ISBN-13 9781838984113
Length 794 pages
Edition 1st Edition
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Authors (4):
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Eran Boudjnah Eran Boudjnah
Author Profile Icon Eran Boudjnah
Eran Boudjnah
Jomar Tigcal Jomar Tigcal
Author Profile Icon Jomar Tigcal
Jomar Tigcal
Alex Forrester Alex Forrester
Author Profile Icon Alex Forrester
Alex Forrester
Alexandru Dumbravan Alexandru Dumbravan
Author Profile Icon Alexandru Dumbravan
Alexandru Dumbravan
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Toc

Table of Contents (17) Chapters Close

Preface
1. Creating Your First App 2. Building User Screen Flows FREE CHAPTER 3. Developing the UI with Fragments 4. Building App Navigation 5. Essential Libraries: Retrofit, Moshi, and Glide 6. RecyclerView 7. Android Permissions and Google Maps 8. Services, WorkManager, and Notifications 9. Unit Tests and Integration Tests with JUnit, Mockito, and Espresso 10. Android Architecture Components 11. Persisting Data 12. Dependency Injection with Dagger and Koin 13. RxJava and Coroutines 14. Architecture Patterns 15. Animations and Transitions with CoordinatorLayout and MotionLayout 16. Launching Your App on Google Play

Retrofit and Moshi

When connecting to your remote network, you can use Retrofit. Retrofit is an HTTP client that makes it easy to implement creating requests and retrieving responses from your backend server.

You can add Retrofit to your project by adding the following code in your app/build.gradle file dependencies:

implementation 'com.squareup.retrofit2:retrofit:2.9.0'

You can then convert the JSON response from Retrofit by using Moshi, a library for parsing JSON into Java objects. For example, you can convert the JSON string response from getting the list of movies into a ListofMovie object for display and storage in your app.

You can add the Moshi Converter to your project by adding the following code to your app/build.gradle file dependencies:

implementation 'com.squareup.retrofit2:converter-moshi:2.9.0'

In your Retrofit builder code, you can call addConverterFactory and pass MoshiConverterFactory:

Retrofit.Builder()
   ...
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