This interface was deprecated
in API level P.
Interface that is implemented to discover when a Loader has finished
loading its data. You do not normally need to implement this yourself;
it is used in the implementation of
to find out when a Loader it is managing has completed so that this can
be reported to its client. This interface should only be used if a
Loader is not being used in conjunction with LoaderManager.
Called on the thread that created the Loader when the load is complete.