cupertino_load_more

Description:

cupertino load more

a CupertinoSliverRefreshControl like load more sliver
Features #

support CustomerScrollView
support autoload and preload(only if cacheExtent > 0)
similar to CupertinoSliverRefreshControl useage

Demo #
online demo
Usage #
late ValueNotifier<int> _count;
Future<void> loadMore() async {
await Future.delayed(const Duration(seconds: 1));
_count.value = _count.value + 8;
}
CustomScrollView(slivers: [
ValueListenableBuilder(
valueListenable: _count,
builder: (c, value, _) {
return SliverList(
...
]));
}),
LoadMoreController(onLoad: loadMore),
]);
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Additional information #
CustomScrollView(
cacheExtent: 500,
slivers: [
LoadMoreController(
onLoad: loadMore,
autoLoad: true,
)
],
);
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if the autoLoad argument be true:

onLoad will be called when viewport not filled
onLoad will be called when the LoadMoreController
reach the cacheExtent of the viewport, cacheExtent can be modified to control the preloading timing