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feat: Dynamic appbar elevation and FAB in chat list

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This commit is contained in:
Christian Pauly 2021-05-30 12:41:10 +02:00
commit 538b06f8e9
2 changed files with 28 additions and 10 deletions
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12
lib/pages/chat_list.dart
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@ -32,6 +32,7 @@ class ChatList extends StatefulWidget {
}
class ChatListController extends State<ChatList> {
final ScrollController scrollController = ScrollController();
StreamSubscription _intentDataStreamSubscription;
StreamSubscription _intentFileStreamSubscription;
@ -42,6 +43,15 @@ class ChatListController extends State<ChatList> {
String get activeChat => VRouter.of(context).pathParameters['roomid'];
bool scrolledTop = true;
void updateScrolledTop() {
final newScrolledTop = scrollController.offset == 0;
if (scrolledTop != newScrolledTop) {
setState(() => scrolledTop = newScrolledTop);
}
}
void _processIncomingSharedFiles(List<SharedMediaFile> files) {
if (files?.isEmpty ?? true) return;
VRouter.of(context).push('/rooms');
@ -109,6 +119,7 @@ class ChatListController extends State<ChatList> {
@override
void initState() {
_initReceiveSharingIntent();
scrollController.addListener(updateScrolledTop);
super.initState();
}
@ -117,6 +128,7 @@ class ChatListController extends State<ChatList> {
_intentDataStreamSubscription?.cancel();
_intentFileStreamSubscription?.cancel();
_intentUriStreamSubscription?.cancel();
scrollController.removeListener(updateScrolledTop);
super.dispose();
}