Free suggestion for an ebook/screencast: building an Android app that is not a tutorial todo list using stock Android libraries. The book must cover connecting

Free suggestion for an ebook/screencast: building an Android app that is not a tutorial todo list using stock Android libraries. The book must cover connecting to a web API (with Retrofit/Moshi/OkHttp), caching data locally (Sqlite, correct lifecycle), correct usage of RxJava and/or message bus, unit and functional testing, creating custom views (in lieu of fragments). These are the tools and techniques that professional Android developers are using but there are no good resources for them -- you have to piece things together from one-off blog posts and sift through massive amounts of crap to find the good stuff (Jake Wharton, Dan Lew, etc).