Android - DataBinding - How and when the Binding classes will be generated?

Question

DataBinding Guide States

  By default, a Binding class will be generated based on the name of the layout 
file, converting it to Pascal case and suffixing “Bindi         


        

Answer 1

My experience is that Android Studio 3.1.3 generated the databinding class after I clicked "Build > Rebuild Project". The file was stored in:

\Project\app\build\generated\source\apt\development\debug\project\android\app\databinding

However, Android Studio still reported the binding class as "Unknown" in source code.

To finally fix it, I manually added the import statement:

import project.android.app.databinding.*;