This tutorial is provided to give you the basis to be able to use the so good PixLib framework made by Francis Bourre. You should know at least what is a MVC pattern and a Command pattern. Usually, using a MVC, each view will have a controller that will update the model ( if needed ) and any views that need to be changed. This can be achieved in the PixLib library using the class in com.bourre.mvc
![PixLib – Understanding the basis of the framework | Dev by MX](https://cdn-ak-scissors.b.st-hatena.com/image/square/3db5d00679653c5ecae8b065b55802c3fee7dbb2/height=288;version=1;width=512/http%3A%2F%2Fdev.webbymx.net%2Fwp-content%2Fuploads%2F2006%2F09%2Fpixlib_mvc.png)