In the last chapter, we used the activity_fullscreen.xml file to edit the frontend of our application. Now, we will take a look at some more of these XML files and understand how they can be useful to us for making games. To understand these type of files, we must first know a little bit about them. To start off, the very basic information about XML is that it's a short form of Extensible Markup Language. Now, if you have studied HTML, you will know that its full form is quite similar to it--HyperText Markup Language. It's quite similar in syntax as well, but the function of an XML file is to hold data. If you go by the definition of an XML file, it goes something like this: XML is a software and hardware-independent tool for storing and transporting data.
You can read more about XML files at https://en.wikipedia.org/wiki/XML.
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