Yesss, I’ve finished the CriminalIntent! 
I’ve done all tasks, and finally I got working application including all features, described in 13 chapters. To be honest it’s turned out a little bit buggy. Sometimes it crashes because of fragments unattached or NullPointerExceptions occur. But I already don’t have the strength to catch all of this. Sorry. 
If somebody wants to check task solutions, my source code is here: https://github.com/coffeeplanter/CriminalIntent
Thanks the authors for the book. It’s really helpful! I continue reading further.
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Great work. Keep it up!