Book Image

Android Programming for Beginners - Second Edition

By : John Horton
Book Image

Android Programming for Beginners - Second Edition

By: John Horton

Overview of this book

Are you trying to start a career in programming, but haven't found the right way in? Do you have a great idea for an app, but don't know how to make it a reality? Or maybe you're just frustrated that in order to learn Android, you must know Java. If so, then this book is for you. This new and expanded second edition of Android Programming for Beginners will be your companion to create Android Pie applications from scratch. We will introduce you to all the fundamental concepts of programming in an Android context, from the basics of Java to working with the Android API. All examples use the up-to-date API classes, and are created from within Android Studio, the official Android development environment that helps supercharge your application development process. After this crash course, we'll dive deeper into Android programming and you'll learn how to create applications with a professional-standard UI through fragments and store your user's data with SQLite. In addition, you'll see how to make your apps multilingual, draw to the screen with a finger, and work with graphics, sound, and animations too. By the end of this book, you'll be ready to start building your own custom applications in Android and Java.
Table of Contents (35 chapters)
Android Programming for Beginners - Second Edition
Contributors
Preface
Other Books You May Enjoy
Index

Summary


In the first five chapters, we got quite proficient with a whole array of widgets and other UI elements. We also built a broad selection of UI layouts. In this chapter and the previous three, we have explored Java and the Android Activity life cycle in quite significant depth, especially considering how quickly we have done it.

We have, to a small extent, interacted between our Java code and our UI. We have called our methods by setting the onClick attribute and we have loaded our UI layouts using the setContentView method. We haven't, however, really made a proper connection between our UI and our Java code.

What we really need to do now is bring these things together so that we can begin to display and manipulate our data using the Android UI. To achieve this, we need to understand a bit more about classes.

Classes have been lurking in our code since Chapter 1, Beginning Android and Java, and we have even used them a bit. Hitherto, however, we haven't tackled them properly other...