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  • Book Overview & Buying How to Build Android Apps with Kotlin
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How to Build Android Apps with Kotlin

How to Build Android Apps with Kotlin

By : Alex Forrester, Eran Boudjnah, Alexandru Dumbravan, Tigcal
4.6 (32)
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How to Build Android Apps with Kotlin

How to Build Android Apps with Kotlin

4.6 (32)
By: Alex Forrester, Eran Boudjnah, Alexandru Dumbravan, Tigcal

Overview of this book

Are you keen to get started building Android 11 apps, but don’t know where to start? How to Build Android Apps with Kotlin is a comprehensive guide that will help kick-start your Android development practice. This book starts with the fundamentals of app development, enabling you to utilize Android Studio and Kotlin to get started building Android projects. You'll learn how to create apps and run them on virtual devices through guided exercises. Progressing through the chapters, you'll delve into Android’s RecyclerView to make the most of lists, images, and maps, and see how to fetch data from a web service. Moving ahead, you'll get to grips with testing, learn how to keep your architecture clean, understand how to persist data, and gain basic knowledge of the dependency injection pattern. Finally, you'll see how to publish your apps on the Google Play store. You'll work on realistic projects that are split up into bitesize exercises and activities, allowing you to challenge yourself in an enjoyable and attainable way. You'll build apps to create quizzes, read news articles, check weather reports, store recipes, retrieve movie information, and remind you where you parked your car. By the end of this book, you'll have the skills and confidence to build your own creative Android applications using Kotlin.
Table of Contents (17 chapters)
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Preface
12
12. Dependency Injection with Dagger and Koin

Scoped Storage

Since Android 10 and with further updates in Android 11, the notion of Scoped Storage was introduced. The main idea behind this is to allow apps to gain more control of their files on the external storage and prevent other apps from accessing these files. The consequences of this mean that READ_EXTERNAL_STORAGE and WRITE_EXTERNAL_STORAGE will only apply for files the user interacts with (like media files). This discourages apps to create their own directories on the external storage and instead stick with the one already provided to them through the Context.getExternalFilesDir.

FileProviders and Storage Access Framework are a good way of keeping your app's compliance with the scoped storage practices because one allows the app to use the Context.getExternalFilesDir and the other uses the built-in File Explorer app which will now avoid files from other applications in the Android/data and Android/obb folders on the external storage.

Camera and Media Storage...

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How to Build Android Apps with Kotlin
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