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)

Running the app

Now we get to see the live drawing app in action and play with some of the different options we commented out in the code.

Run the app with small, round, colorful, fast particles. Just tap the screen in a few places:

Figure 22.2 – Tap the screen

Then resume drawing:

Figure 22.3 – Tap results

Do a kid's-style drawing with small, white, square, slow, long-duration particles:

Figure 22.4 – The kid's-style drawing

Then un-pause the drawing and wait for 20 seconds while the drawing comes to life and changes:

Figure 22.5 – The kid's-style drawing result

Before we move on to our next project, the Live Drawing app gives us an excellent opportunity to explore another feature of Android Studio.