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Android Programming with Kotlin for Beginners

Android Programming with Kotlin for Beginners

By : John Horton
3.7 (19)
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Android Programming with Kotlin for Beginners

Android Programming with Kotlin for Beginners

3.7 (19)
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 (31 chapters)
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30
Index

Running Note to self in German or Spanish

Run the app to see whether it is working as expected. Now, we can change the localization settings to see it in Spanish. Different devices vary slightly in how to do this, but the Pixel 2 XL emulator can be changed by clicking on the Custom Locale app:

Running Note to self in German or Spanish

Next, select es-ES and then click the SELECT 'ES' button in the bottom-left of the screen, as shown in the next screenshot:

Running Note to self in German or Spanish

Now you can run the app in the usual way. Here is a screenshot showing the app running in Spanish. I have photoshopped a few images side by side to show a few different screens of the Note to self app:

Running Note to self in German or Spanish

You can clearly see that our app is mainly translated to Spanish. Obviously, the text that the user enters will be in whatever language they speak – that is not a flaw of our app. However, look at the images closely and you will notice that I have pointed out a couple of places where the text is still in English. We still have some untranslated text in each of our...

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