128 lines
3.1 KiB
Dart
128 lines
3.1 KiB
Dart
// Flutter imports:
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import 'package:flutter/material.dart';
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class ScrollableListView extends StatefulWidget {
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const ScrollableListView({
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Key key,
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@required this.children,
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this.scrollController,
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this.padding,
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this.primary,
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this.showScrollbar = false,
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}) : super(key: key);
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final List<Widget> children;
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final ScrollController scrollController;
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final EdgeInsetsGeometry padding;
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final bool primary;
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final bool showScrollbar;
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@override
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_ScrollableListViewState createState() => _ScrollableListViewState();
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}
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class _ScrollableListViewState extends State<ScrollableListView> {
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ScrollController _scrollController;
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@override
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void initState() {
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super.initState();
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_scrollController = ScrollController();
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}
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@override
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void dispose() {
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_scrollController.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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final controller = widget.primary == true
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? null
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: widget.scrollController ?? _scrollController;
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Widget child = ListView(
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padding: widget.padding,
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children: widget.children,
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controller: controller,
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shrinkWrap: true,
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primary: widget.primary,
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);
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if (widget.showScrollbar) {
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child = Scrollbar(
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child: child,
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controller: controller,
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thumbVisibility: true,
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);
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}
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return child;
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}
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}
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class ScrollableListViewBuilder extends StatefulWidget {
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const ScrollableListViewBuilder({
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Key key,
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@required this.itemBuilder,
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@required this.itemCount,
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this.separatorBuilder,
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this.scrollController,
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this.padding,
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this.primary = false,
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}) : super(key: key);
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final IndexedWidgetBuilder itemBuilder;
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final IndexedWidgetBuilder separatorBuilder;
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final int itemCount;
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final ScrollController scrollController;
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final EdgeInsetsGeometry padding;
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final bool primary;
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@override
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_ScrollableListViewBuilderState createState() =>
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_ScrollableListViewBuilderState();
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}
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class _ScrollableListViewBuilderState extends State<ScrollableListViewBuilder> {
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ScrollController _scrollController;
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@override
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void initState() {
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super.initState();
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_scrollController = ScrollController();
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}
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@override
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void dispose() {
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_scrollController.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return widget.separatorBuilder != null
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? ListView.separated(
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primary: widget.primary,
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separatorBuilder: widget.separatorBuilder,
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padding: widget.padding,
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itemBuilder: widget.itemBuilder,
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itemCount: widget.itemCount,
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controller: widget.primary
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? null
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: widget.scrollController ?? _scrollController,
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shrinkWrap: true,
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)
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: ListView.builder(
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primary: widget.primary,
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padding: widget.padding,
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itemBuilder: widget.itemBuilder,
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itemCount: widget.itemCount,
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controller: widget.primary
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? null
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: widget.scrollController ?? _scrollController,
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shrinkWrap: true,
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);
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}
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}
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