Book Image

Android Programming for Beginners - Third Edition

By : John Horton
Book Image

Android Programming for Beginners - Third Edition

By: John Horton

Overview of this book

Do you want to make a career in programming but don’t know where to start? Do you have a great idea for an app but don't know how to make it a reality? Or are you worried that you’ll have to learn Java programming to become an Android developer? Look no further! This new and expanded third edition of Android Programming for Beginners will be your guide to creating Android applications from scratch. The book starts by introducing you to all the fundamental concepts of programming in an Android context, from the basics of Java to working with the Android API. You’ll learn with the help of examples that use up-to-date API classes and are created within Android Studio, the official Android development environment that helps supercharge your mobile application development process. After a crash course on the key programming concepts, you’ll explore Android programming and get to grips with creating applications with a professional-standard UI using fragments and storing user data with SQLite. This Android Java book also shows you how you can make your apps multilingual, draw on the screen with a finger, and work with graphics, sound, and animations. By the end of this Android programming book, you'll be ready to start building your own custom applications in Android and Java.
Table of Contents (30 chapters)

Starting the Simple Database project

Create a new project in Android Studio. Call it Age Database, use the Navigation Drawer Activity template. Before we do anything else, it is well worth running the app on an emulator to see how much has been autogenerated as part of this template:

Figure 26.7 – Home page

At first glance, it is just a plain old layout with a TextView widget. But swipe from the left edge of the screen or press the menu button and the Navigation Drawer layout reveals itself:

Figure 26.8 – Navigation page

Now we can modify the options and insert a Fragment (with a layout) for each option. To understand how it works, let's examine some of the autogenerated code.