Book Image

Learning AndEngine

By : Martin Varga
Book Image

Learning AndEngine

By: Martin Varga

Overview of this book

AndEngine is a very popular open source OpenGL (open graphics library) Android game engine, used to create mobile games quickly while maintaining the ability to fully customize them. This book will guide you through the whole development process of creating a mobile game for the Android platform using one of the most popular and easy-to-use game engines available today. Beginning with the very basics, you will learn how to install AndEngine, gather graphics, add sound and music assets, and design game rules. You will first design an example game and enhance it by adding various features over the course of the book. Each chapter adds more colors, enhances the game, and takes it to the next level. You will also learn how to work with Box2D, a popular 2D physics engine that forms an integral part of some of the most successful mobile games. By the end of the book, you will be able to create a complete, interactive, and fully featured mobile game for Android and publish it to Google Play.
Table of Contents (19 chapters)
Learning AndEngine
About the Author
About the Reviewers

Working with toasts

Another way to output text on the screen is using toasts. A toast is a simple message widget that can provide feedback about an operation in progress. It's a core Android widget, not an AndEngine component, but we can nevertheless use it in our game.

The easiest way to show a toast is to use a static method provided by the Toast class. In a general Android app, we can simply call this as follows:

Toast.makeText(activity, "Hello World", Toast.LENGTH_LONG).show();

We can also call a toast inside the activity itself. This can be done as follows:

Toast.makeText(this, "Hello World", Toast.LENGTH_LONG).show();

The makeText() method creates the Toast object. It takes three parameters: the context (activity), the text to show, and the length of the toast, which can be one of the following two types:



Finally, we call the show() method on the newly created Toast object.

However, if we try to call this object inside the game, it won't work. This is...