onEndReachedThreshold property
Used for pagination (infinite scroll) together with onEndReached. Can be anything from 0 to 1, where 0 is immediate load of the next page as soon as scroll starts, and 1 is load of the next page only if scrolled to the very end of the list. Default value is 0.75, e.g. start loading next page when scrolled through about 3/4 of the available content.
Implementation
final double? onEndReachedThreshold;