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lemmur-app-android
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Code Issues Releases Wiki Activity

add option to include widget before the list, but that is still scrollable

This commit is contained in:
krawieck 2020-09-28 19:55:10 +02:00
parent 93f1be94a0
commit 147db8e1fe
1 changed files with 12 additions and 2 deletions
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14
lib/widgets/infinite_scroll.dart
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@ -24,9 +24,13 @@ class InfiniteScroll<T> extends HookWidget {
final Widget Function(T data) builder;
final Future<List<T>> Function(int page, int batchSize) fetchMore;
final InfiniteScrollController controller;
final Widget prepend;
final EdgeInsetsGeometry padding;
InfiniteScroll({
this.batchSize = 10,
this.prepend,
this.padding,
this.loadingWidget =
const ListTile(title: Center(child: CircularProgressIndicator())),
@required this.builder,
@ -54,9 +58,15 @@ class InfiniteScroll<T> extends HookWidget {
final page = data.value.length ~/ batchSize + 1;
return ListView.builder(
// +1 for the loading widget
itemCount: data.value.length + 1,
padding: padding,
// +2 for the loading widget and prepend widget
itemCount: data.value.length + 2,
itemBuilder: (_, i) {
if (i == 0) {
return prepend ?? Container();
}
i -= 1;
// reached the bottom, fetch more
if (i == data.value.length) {
// if there are no more, skip