Android Programming (3rd Edition)   20. Data Binding and MVVM

About the 20. Data Binding and MVVM category (1)
There is a error in 20.8.2 about "?" (1)
Cannot resolve symbol 'recyclerView' (5)
Instantiate binding (1)
Cannot resolve Theme.AppCompat.Light.DarkActionBar (5)
setViewModel method is not available (4)
Manifest merger failed (4)
How bind an image to ImageView? (2)
Can Anyone Please explain the problem of RecyclerView with DataBinding? (2)
ViewModel and Data Binding: why do the views randomly jumble up? (3)
Trying to refactor GeoQuiz to follow MVVM, but running into trouble when configuration changes (2)
Not seeing written behavior on page 394 using APIs above 19 (7)
Cannot resolve DataBindingUtil (3)
Could not find method databinding() (2)
Binding to Data example (2)
Problems with Data Binding (2)