Book Image

Modern Android 13 Development Cookbook

By : Madona S. Wambua
5 (1)
Book Image

Modern Android 13 Development Cookbook

5 (1)
By: Madona S. Wambua

Overview of this book

Android is a powerful operating system widely used in various devices, phones, TVs, wearables, automobiles, and more. This Android cookbook will teach you how to leverage the latest Android development technologies for creating incredible applications while making effective use of popular Jetpack libraries. You’ll also learn which critical principles to consider when developing Android apps. The book begins with recipes to get you started with the declarative UI framework, Jetpack Compose, and help you with handling UI states, Navigation, Hilt, Room, Wear OS, and more as you learn what's new in modern Android development. Subsequent chapters will focus on developing apps for large screens, leveraging Jetpack’s WorkManager, managing graphic user interface alerts, and tips and tricks within Android studio. Throughout the book, you'll also see testing being implemented for enhancing Android development, and gain insights into harnessing the integrated development environment of Android studio. Finally, you’ll discover best practices for robust modern app development. By the end of this book, you’ll be able to build an Android application using the Kotlin programming language and the newest modern Android development technologies, resulting in highly efficient applications.
Table of Contents (15 chapters)

Understanding and handling recomposition in Jetpack Compose

Jetpack Compose is still very new, and many companies are starting to use it. Furthermore, Google has done a great job by giving developers significant documentation to help them embrace this new UI toolkit. However, despite all the documentation, one concept needs to be clarified. And that is recomposition.

Fair enough, all new software has its ups and downs, and as many people start using it, more people start giving feedback – hence, the need for more improvement. Recomposition, in Compose, involves calling your Composable again when the input changes. Or you can think of it when the composition structure and relation change.

Unless its parameters change, we want to avoid a Composable function being re-invoked in most use cases. So, in this recipe, we look into how recomposition happens and how you can debug and solve any recomposition in your application.

How to do it…

Since our view system is...