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fix(ui): fix positioned list view null check

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This commit is contained in:
Salvatore Giordano
2021-10-29 12:22:05 +02:00
parent c8c3296e3e
commit 26393402d8
2 changed files with 8 additions and 4 deletions
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packages/stream_chat_flutter/lib/scrollable_positioned_list/src/positioned_list.dart
+1 -1
View File
@@ -326,7 +326,7 @@ class _PositionedListState extends State<PositionedList> {
final box = element.renderObject as RenderBox?; final box = element.renderObject as RenderBox?;
viewport ??= RenderAbstractViewport.of(box) as RenderViewport?; viewport ??= RenderAbstractViewport.of(box) as RenderViewport?;
if (viewport == null || box == null) { if (viewport == null || box == null) {
continue; break;
} }
final key = element.widget.key as IndexedKey; final key = element.widget.key as IndexedKey;
if (widget.scrollDirection == Axis.vertical) { if (widget.scrollDirection == Axis.vertical) {
packages/stream_chat_flutter/lib/src/message_list_view.dart
+7 -3
View File
@@ -399,8 +399,11 @@ class _MessageListViewState extends State<MessageListView> {
final first = _itemPositionListener.itemPositions.value.first; final first = _itemPositionListener.itemPositions.value.first;
final diff = newMessagesListLength - _messageListLength!; final diff = newMessagesListLength - _messageListLength!;
if (diff > 0) { if (diff > 0) {
initialIndex = first.index + diff; if (messages[0].user?.id !=
initialAlignment = first.itemLeadingEdge; streamChannel!.channel.client.state.currentUser?.id) {
initialIndex = first.index + diff;
initialAlignment = first.itemLeadingEdge;
}
} }
} }
} }
@@ -1259,8 +1262,9 @@ class _MessageListViewState extends State<MessageListView> {
event.message!.user!.id == event.message!.user!.id ==
streamChannel!.channel.client.state.currentUser!.id) { streamChannel!.channel.client.state.currentUser!.id) {
WidgetsBinding.instance!.addPostFrameCallback((_) { WidgetsBinding.instance!.addPostFrameCallback((_) {
_scrollController?.jumpTo( _scrollController?.scrollTo(
index: 0, index: 0,
duration: const Duration(seconds: 1),
); );
}); });
} }