Re. Figure 9.12 Custom list item layout (list_item_crime.xml)
I don’t feel it’s sufficiently clear that you should type in the xml corresponding to Figure 9.12 - assuming that is indeed what you are supposed to do. In other places where stuff is explained diagrammatically, there is then a source code listing. While I appreciate you are gradually holding the students hand less with basic tasks as the book progresses, I think a little pointer here would help.