Remember that the goal of this chapter was to familiarize ourselves with the system and structure of Android and an Android project. Android projects are an elaborate interweaving of Kotlin and a multitude of resource files. Resource files can contain XML to describe our layouts, textual content, styles, and colors, as well as images. Resources can be produced to target different languages and regions of the world. Other resource types that we will see and use throughout the book include themes and sound effects.
It is not important to remember all the different ways in which the different resource files and Kotlin files are interconnected. It is only important to realize that they are interconnected, and also be able to examine files of various types and realize when they are dependent on code in another file. Whenever we create connections from our Kotlin code to the XML code, I will always point out the details of the connection again.
We do not need to learn XML in addition to...
