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Learning Java by Building Android Games

You're reading from   Learning Java by Building Android Games Learn Java and Android from scratch by building five exciting games

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Product type Paperback
Published in Mar 2021
Publisher Packt
ISBN-13 9781800565869
Length 686 pages
Edition 3rd Edition
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Author (1):
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John Horton John Horton
Author Profile Icon John Horton
John Horton
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Toc

Table of Contents (24) Chapters Close

Preface 1. Chapter 1: Java, Android, and Game Development 2. Chapter 2: Java – First Contact FREE CHAPTER 3. Chapter 3: Variables, Operators, and Expressions 4. Chapter 4: Structuring Code with Java Methods 5. Chapter 5: The Android Canvas Class – Drawing to the Screen 6. Chapter 6: Repeating Blocks of Code with Loops 7. Chapter 7: Making Decisions with Java If, Else, and Switch 8. Chapter 8: Object-Oriented Programming 9. Chapter 9: The Game Engine, Threads, and the Game Loop 10. Chapter 10: Coding the Bat and Ball 11. Chapter 11: Collisions, Sound Effects, and Supporting Different Versions of Android 12. Chapter 12: Handling Lots of Data with Arrays 13. Chapter 13: Bitmap Graphics and Measuring Time 14. Chapter 14: Java Collections, the Stack, the Heap, and the Garbage Collector 15. Chapter 15: Android Localization – Hola! 16. Chapter 16: Collections and Enumerations 17. Chapter 17: Manipulating Bitmaps and Coding the Snake Class 18. Chapter 18: Introduction to Design Patterns and Much More! 19. Chapter 19: Listening with the Observer Pattern, Multitouch, and Building a Particle System 20. Chapter 20: More Patterns, a Scrolling Background, and Building the Player's Ship 21. Chapter 21: Completing the Scrolling Shooter Game 22. Chapter 22: What Next? 23. Other Books You May Enjoy

Canvas Demo app

Let's create another new project to explore the topic of drawing with Canvas. We will reuse what we just learned and this time we will also draw to the Bitmap.

Creating a new project

Create a new project in the same way as we did for Sub' Hunter, but call it Canvas Demo. If you have the Sub' Hunter project open now, you can select File | New Project and create a project using the following options:

As we did before, be sure that the Empty Activity option is selected. Don't worry about refactoring the name of the activity. This is just a mini-app to play around with; we will not be returning to it.

Important note

The complete code for this mini-app can be found on the GitHub repo in the Chapter 5/Canvas Demo folder.

Coding the Canvas demo app

To get started, edit the autogenerated code, including the class declaration, to change the type of Activity class, add the related import statements, declare a few...

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