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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; widget.messageSearchListController ?? _defaultController;
@override @override
Widget build(BuildContext context) => ColoredBox( Widget build(BuildContext context) {
color: MessageSearchListViewTheme.of(context).backgroundColor!, final messageSearchListCore = MessageSearchListCore(
child: MessageSearchListCore( filters: widget.filters,
filters: widget.filters, sortOptions: widget.sortOptions,
sortOptions: widget.sortOptions, messageQuery: widget.messageQuery,
messageQuery: widget.messageQuery, paginationParams: widget.paginationParams,
paginationParams: widget.paginationParams, messageFilters: widget.messageFilters,
messageFilters: widget.messageFilters, messageSearchListController: _messageSearchListController,
messageSearchListController: _messageSearchListController, emptyBuilder: widget.emptyBuilder ??
emptyBuilder: widget.emptyBuilder ?? (context) => LayoutBuilder(
(context) => LayoutBuilder( builder: (context, viewportConstraints) =>
builder: (context, viewportConstraints) => SingleChildScrollView(
SingleChildScrollView( physics: const AlwaysScrollableScrollPhysics(),
physics: const AlwaysScrollableScrollPhysics(), child: ConstrainedBox(
child: ConstrainedBox( constraints: BoxConstraints(
constraints: BoxConstraints( minHeight: viewportConstraints.maxHeight,
minHeight: viewportConstraints.maxHeight, ),
), child: const Center(
child: const Center( child: Text('There are no messages currently'),
child: Text('There are no messages currently'),
),
),
), ),
), ),
errorBuilder: widget.errorBuilder ?? ),
(BuildContext context, dynamic error) { ),
if (error is Error) { errorBuilder: widget.errorBuilder ??
print(error.stackTrace); (BuildContext context, dynamic error) {
} if (error is Error) {
return InfoTile( print(error.stackTrace);
showMessage: widget.showErrorTile, }
tileAnchor: Alignment.topCenter, return InfoTile(
childAnchor: Alignment.topCenter, showMessage: widget.showErrorTile,
message: 'An error occurred.', tileAnchor: Alignment.topCenter,
child: Container(), childAnchor: Alignment.topCenter,
); message: 'An error occurred.',
}, child: Container(),
loadingBuilder: widget.loadingBuilder ?? );
(context) => LayoutBuilder( },
builder: (context, viewportConstraints) => loadingBuilder: widget.loadingBuilder ??
SingleChildScrollView( (context) => LayoutBuilder(
physics: const AlwaysScrollableScrollPhysics(), builder: (context, viewportConstraints) =>
child: ConstrainedBox( SingleChildScrollView(
constraints: BoxConstraints( physics: const AlwaysScrollableScrollPhysics(),
minHeight: viewportConstraints.maxHeight, child: ConstrainedBox(
), constraints: BoxConstraints(
child: const Center( minHeight: viewportConstraints.maxHeight,
child: CircularProgressIndicator(), ),
), 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( Widget _separatorBuilder(BuildContext context, int index) => Container(
height: 1, height: 1,