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feat: Added sticky header to display position data

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This commit is contained in:
Deven Joshi
2020-10-27 13:50:16 +05:30
parent d93dfb5af4
commit 6de4ee9963
1 changed files with 3 additions and 2 deletions
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lib/src/message_list_view.dart
+3 -2
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@@ -273,7 +273,7 @@ class _MessageListViewState extends State<MessageListView> {
); );
} }
return VisibleNotifierWidget(child: messageWidget); return VisibleNotifierWidget(child: messageWidget, data: i,);
}, },
childCount: _messages.length + 2, childCount: _messages.length + 2,
findChildIndexCallback: (key) { findChildIndexCallback: (key) {
@@ -297,12 +297,13 @@ class _MessageListViewState extends State<MessageListView> {
} }
return _buildScrollToBottom(streamChannel); return _buildScrollToBottom(streamChannel);
}), }),
if(positionData != null)
Positioned( Positioned(
top: 20.0, top: 20.0,
child: WidgetsVisibilityListener( child: WidgetsVisibilityListener(
listener: (context, event) { listener: (context, event) {
setState(() { setState(() {
positionData = event.positionDataList.isNotEmpty ? event.positionDataList[0] : null; positionData = event.positionDataList.isNotEmpty ? event.positionDataList[0].data : null;
}); });
}, },
child: DateDivider( child: DateDivider(