Book Image

Android Programming with Kotlin for Beginners

By : John Horton
5 (1)
Book Image

Android Programming with Kotlin for Beginners

5 (1)
By: John Horton

Overview of this book

Android is the most popular mobile operating system in the world and Kotlin has been declared by Google as a first-class programming language to build Android apps. With the imminent arrival of the most anticipated Android update, Android 10 (Q), this book gets you started building apps compatible with the latest version of Android. It adopts a project-style approach, where we focus on teaching the fundamentals of Android app development and the essentials of Kotlin by building three real-world apps and more than a dozen mini-apps. The book begins by giving you a strong grasp of how Kotlin and Android work together before gradually moving onto exploring the various Android APIs for building stunning apps for Android with ease. You will learn to make your apps more presentable using different layouts. You will dive deep into Kotlin programming concepts such as variables, functions, data structures, Object-Oriented code, and how to connect your Kotlin code to the UI. You will learn to add multilingual text so that your app is accessible to millions of more potential users. You will learn how animation, graphics, and sound effects work and are implemented in your Android app. By the end of the book, you will have sound knowledge about significant Kotlin programming concepts and start building your own fully featured Android apps.
Table of Contents (33 chapters)
Android Programming with Kotlin for Beginners
Contributors
Preface
Index

Making the Note to self app Spanish, English, and German


First, we need to add some folders to our project – one for each new language. The text is classed as a resource, and, consequently, needs to go in the res folder. Follow these steps to add Spanish support to the project.

Note

While the source files for this project are provided in the Chapter18 folder, they are just for reference. You need to go through the processes described next to achieve multilingual functionality.

Adding Spanish support

Follow the next steps to add the Spanish language:

  1. Right-click on the res folder, then select New | Android resource directory. In the Directory name field, type values-es.

  2. Now we need to add a file in which we can place all our Spanish translations.

  3. Right-click on res, then select New | Android resource file and type strings.xml in the File name field. Type values-es in the Directory name field.

We now have a strings.xml file that any device set to use the Spanish language will refer to. To be clear...