getPreviousPageParam property
Function to determine the previous page param based on the first page. Return null if there are no previous pages.
Implementation
final dynamic Function(T firstPage, List<T> allPages)? getPreviousPageParam;
Function to determine the previous page param based on the first page. Return null if there are no previous pages.
final dynamic Function(T firstPage, List<T> allPages)? getPreviousPageParam;