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Kickstart Modern Android Development with Jetpack and Kotlin

You're reading from   Kickstart Modern Android Development with Jetpack and Kotlin Enhance your applications by integrating Jetpack and applying modern app architectural concepts

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Product type Paperback
Published in May 2022
Publisher Packt
ISBN-13 9781801811071
Length 472 pages
Edition 1st Edition
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Catalin Ghita Catalin Ghita
Author Profile Icon Catalin Ghita
Catalin Ghita
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Table of Contents (17) Chapters Close

Preface 1. Part 1: Exploring the Core Jetpack Suite and Other Libraries
2. Chapter 1: Creating a Modern UI with Jetpack Compose FREE CHAPTER 3. Chapter 2: Handling UI State with Jetpack ViewModel 4. Chapter 3: Displaying Data from REST APIs with Retrofit 5. Chapter 4: Handling Async Operations with Coroutines 6. Chapter 5: Adding Navigation in Compose With Jetpack Navigation 7. Part 2: A Guide to Clean Application Architecture with Jetpack Libraries
8. Chapter 6: Adding Offline Capabilities with Jetpack Room 9. Chapter 7: Introducing Presentation Patterns in Android 10. Chapter 8: Getting Started with Clean Architecture in Android 11. Chapter 9: Implementing Dependency Injection with Jetpack Hilt 12. Chapter 10: Test Your App with UI and Unit Tests 13. Part 3: Diving into Other Jetpack Libraries
14. Chapter 11: Creating Infinite Lists with Jetpack Paging and Kotlin Flow 15. Chapter 12: Exploring the Jetpack Lifecycle Components 16. Other Books You May Enjoy

Defining and handling state with Compose

State and events are essential to any application since their existence implies that the UI can change over time as you interact with it.

In this section, we will cover the concept of state and events and then integrate them into our Restaurants app.

To summarize, this section will cover the following topics:

  • Understanding state and events
  • Adding state to our Restaurants app

Let's start by exploring the basic concepts of state and events in Android applications.

Understanding state and events

State represents a possible form of the UI at a certain point in time. This form can change or mutate. When the user interacts with the UI, an event is created that triggers a change in the state of the UI. So, an event is represented by different interactions that are initiated by the user that target the app and that consequently cause its state to update.

In simple terms, state changes over time because of events...

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