InfiniteQueryBuilder<TPageData, TPageParam, TData> class Infinite queries

Builds its subtree from an infinite query, handing the builder the InfiniteQueryController so it can page.

InfiniteQueryBuilder(
  options: feedQuery(),
  builder: (context, feed) {
    final posts = feed.value.dataOrNull?.flatten<Post>() ?? const <Post>[];
    return ListView(
      children: [
        for (final post in posts) ListTile(title: Text(post.title)),
        if (feed.hasNextPage)
          TextButton(
            onPressed: feed.isFetchingNextPage ? null : feed.fetchNextPage,
            child: const Text('Load more'),
          ),
      ],
    );
  },
)

No type arguments at the call site: either options shape — InfiniteQueryObserverOptions or InfiniteQuerySelectOptions — carries the page type, the page-param type and the result type, and inference reads all three off it.

The widget owns the controller from its first build until it is disposed; do not dispose the one builder is handed. Options are re-applied whenever the parent rebuilds it, as for QueryBuilder. A fetch that moves only the paging flags — isFetchingNextPage, hasNextPage and the like — rebuilds too, even when the result itself is unchanged.