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album: fixed padding around scroll thumb

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This commit is contained in:
Thibault Deckers 2019-09-13 20:33:57 +09:00
parent af7f5536ac
commit 5768b8a056
2 changed files with 30 additions and 18 deletions
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12
lib/widgets/album/thumbnail_collection.dart
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@ -45,6 +45,16 @@ class ThumbnailCollectionContent extends StatelessWidget {
Widget build(BuildContext context) { Widget build(BuildContext context) {
final bottomInsets = MediaQuery.of(context).viewInsets.bottom; final bottomInsets = MediaQuery.of(context).viewInsets.bottom;
final sectionKeys = _sections.keys.toList(); final sectionKeys = _sections.keys.toList();
double topPadding = 0;
if (appBar != null) {
final topWidget = appBar;
if (topWidget is PreferredSizeWidget) {
topPadding = topWidget.preferredSize.height;
} else if (topWidget is SliverAppBar) {
topPadding = kToolbarHeight + (topWidget.bottom?.preferredSize?.height ?? 0.0);
}
}
return SafeArea( return SafeArea(
child: DraggableScrollbar.arrows( child: DraggableScrollbar.arrows(
child: CustomScrollView( child: CustomScrollView(
@ -68,7 +78,7 @@ class ThumbnailCollectionContent extends StatelessWidget {
], ],
), ),
controller: _scrollController, controller: _scrollController,
padding: EdgeInsets.only(bottom: bottomInsets), padding: EdgeInsets.only(top: topPadding, bottom: bottomInsets),
labelTextBuilder: (double offset) => Text( labelTextBuilder: (double offset) => Text(
"${offset ~/ 1}", "${offset ~/ 1}",
style: TextStyle(color: Colors.blueGrey), style: TextStyle(color: Colors.blueGrey),

6
lib/widgets/common/draggable_scrollbar.dart
View file

@ -5,6 +5,7 @@ import 'package:flutter/material.dart';
/// TLAD: copied from https://pub.dev/packages/draggable_scrollbar 0.0.4 /// TLAD: copied from https://pub.dev/packages/draggable_scrollbar 0.0.4
/// modified to allow any `ScrollView` as a child, not just `BoxScrollView` /// modified to allow any `ScrollView` as a child, not just `BoxScrollView`
/// modified to apply vertical padding when computing `barMaxScrollExtent`
/// Build the Scroll Thumb and label using the current configuration /// Build the Scroll Thumb and label using the current configuration
typedef Widget ScrollThumbBuilder( typedef Widget ScrollThumbBuilder(
@ -343,7 +344,7 @@ class _DraggableScrollbarState extends State<DraggableScrollbar> with TickerProv
super.dispose(); super.dispose();
} }
double get barMaxScrollExtent => context.size.height - widget.heightScrollThumb; double get barMaxScrollExtent => context.size.height - widget.heightScrollThumb - widget.padding.vertical;
double get barMinScrollExtent => 0.0; double get barMinScrollExtent => 0.0;
@ -391,7 +392,8 @@ class _DraggableScrollbarState extends State<DraggableScrollbar> with TickerProv
labelConstraints: widget.labelConstraints, labelConstraints: widget.labelConstraints,
), ),
), ),
)), ),
),
], ],
), ),
); );