prefetchDistance

Prefetch distance which defines how far from the edge of loaded content an access must be to trigger further loading. Typically should be set several times the number of visible items onscreen.

E.g., If this value is set to 50, a PagingData will attempt to load 50 items in advance of data that's already been accessed.

A value of 0 indicates that no list items will be loaded until they are specifically requested. This is generally not recommended, so that users don't observe a end of list while scrolling.