Setting up an activity to use the scene manager
Because of the way that our scene manager works, setting it up for use by an Activity class that extends AndEngine's BaseGameActivity class requires little effort. We are also going to implement an accurate screen-resolution scaling approach to ensure a consistent appearance across all devices. The SceneManager class and ManagedScenes class rely on the variables defined in the ResourceManager class to register update handlers and create entities. As we go through the recipe, take note that we set up the ResourceManager class prior to using any functions of the SceneManager class.
Getting ready...
Create a new activity that extends AndEngine's BaseGameActivity class, or load one that you have already created. Adapting an existing activity to use the scene manager requires the same steps as a new one would require, so do not worry about starting over on a project just to implement the scene manager.
How to do it...
Follow these steps to prepare...
