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add null check to message search list view

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This commit is contained in:
Salvatore Giordano
2021-07-21 12:24:28 +02:00
parent f4457cb618
commit 1db70a6eae
1 changed files with 59 additions and 51 deletions
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packages/stream_chat_flutter/lib/src/message_search_list_view.dart
+59 -51
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@@ -144,61 +144,69 @@ class _MessageSearchListViewState extends State<MessageSearchListView> {
widget.messageSearchListController ?? _defaultController;
@override
Widget build(BuildContext context) => ColoredBox(
color: MessageSearchListViewTheme.of(context).backgroundColor!,
child: MessageSearchListCore(
filters: widget.filters,
sortOptions: widget.sortOptions,
messageQuery: widget.messageQuery,
paginationParams: widget.paginationParams,
messageFilters: widget.messageFilters,
messageSearchListController: _messageSearchListController,
emptyBuilder: widget.emptyBuilder ??
(context) => LayoutBuilder(
builder: (context, viewportConstraints) =>
SingleChildScrollView(
physics: const AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: const Center(
child: Text('There are no messages currently'),
),
),
Widget build(BuildContext context) {
final messageSearchListCore = MessageSearchListCore(
filters: widget.filters,
sortOptions: widget.sortOptions,
messageQuery: widget.messageQuery,
paginationParams: widget.paginationParams,
messageFilters: widget.messageFilters,
messageSearchListController: _messageSearchListController,
emptyBuilder: widget.emptyBuilder ??
(context) => LayoutBuilder(
builder: (context, viewportConstraints) =>
SingleChildScrollView(
physics: const AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: const Center(
child: Text('There are no messages currently'),
),
),
errorBuilder: widget.errorBuilder ??
(BuildContext context, dynamic error) {
if (error is Error) {
print(error.stackTrace);
}
return InfoTile(
showMessage: widget.showErrorTile,
tileAnchor: Alignment.topCenter,
childAnchor: Alignment.topCenter,
message: 'An error occurred.',
child: Container(),
);
},
loadingBuilder: widget.loadingBuilder ??
(context) => LayoutBuilder(
builder: (context, viewportConstraints) =>
SingleChildScrollView(
physics: const AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: const Center(
child: CircularProgressIndicator(),
),
),
),
),
errorBuilder: widget.errorBuilder ??
(BuildContext context, dynamic error) {
if (error is Error) {
print(error.stackTrace);
}
return InfoTile(
showMessage: widget.showErrorTile,
tileAnchor: Alignment.topCenter,
childAnchor: Alignment.topCenter,
message: 'An error occurred.',
child: Container(),
);
},
loadingBuilder: widget.loadingBuilder ??
(context) => LayoutBuilder(
builder: (context, viewportConstraints) =>
SingleChildScrollView(
physics: const AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: const Center(
child: CircularProgressIndicator(),
),
),
childBuilder: widget.childBuilder ?? _buildListView,
),
);
),
),
childBuilder: widget.childBuilder ?? _buildListView,
);
final backgroundColor =
MessageSearchListViewTheme.of(context).backgroundColor;
return backgroundColor != null
? ColoredBox(
color: backgroundColor,
child: messageSearchListCore,
)
: messageSearchListCore;
}
Widget _separatorBuilder(BuildContext context, int index) => Container(
height: 1,