Android SDK Version
ClassDescription
AppEvent 
AppEventsConstants
Predefined event and parameter names for logging events common to many apps.
AppEventsLogger
The AppEventsLogger class allows the developer to log various types of events back to Facebook.
AppEventsManager 
InternalAppEventsLogger
com.facebook.appevents.InternalAppEventsLogger is solely for the use of other packages within the Facebook SDK for Android.
UserDataStore 
EnumDescription
AppEventsLogger.FlushBehavior
Controls when an AppEventsLogger sends log events to the server
AppEventsLogger.ProductAvailability
Product availability for Product Catalog product item update
AppEventsLogger.ProductCondition
Product condition for Product Catalog product item update
FlushResult