Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Building Android Games with Cocos2d-x

You're reading from   Building Android Games with Cocos2d-x Learn to create engaging and spectacular games for Android using Cocos2d-x

Arrow left icon
Product type Paperback
Published in Mar 2015
Publisher Packt
ISBN-13 9781785283833
Length 160 pages
Edition 1st Edition
Arrow right icon
Author (1):
Arrow left icon
Raydelto Hernandez Raydelto Hernandez
Author Profile Icon Raydelto Hernandez
Raydelto Hernandez
Arrow right icon
View More author details
Toc

Table of Contents (10) Chapters Close

Preface 1. Setting Up Your Development Environment 2. Graphics FREE CHAPTER 3. Understanding Game Physics 4. User Input 5. Handling Text and Fonts 6. Audio 7. Creating Particle Systems 8. Adding Native Java Code Index

Handling the Android back key pressed event


A common mistake that I have seen in many games developed by using Cocos2d-x is that the game does nothing when the back button is pressed. Android users are used to pressing the back button whenever they want to go back to the previous activity. If the application does nothing when the back button is pressed, then it would confuse the user because it would not be an expected behavior, less experienced users may even have a hard time trying to exit the game.

We can easily trigger a custom code any time the user presses the back button by adding an EventListenerKeyboard method to our event dispatcher.

First we are going to add the initBackButtonListener and onKeyPressed method declarations in our HelloWorldScene.h header file, as shown in the following code listing:

void initBackButtonListener();
void onKeyPressed(cocos2d::EventKeyboard::KeyCode keyCode, cocos2d::Event* event);

Now, let us add the implementation code for our initBackButtonListener in...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime