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Remove listener on dispose

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This commit is contained in:
Vishnu Mohandas 2021-01-08 22:10:03 +05:30
parent 1f5f99f1d7
commit e641ba8632
1 changed files with 5 additions and 2 deletions
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7
lib/ui/gallery_app_bar_widget.dart
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@ -50,12 +50,14 @@ class GalleryAppBarWidget extends StatefulWidget
class _GalleryAppBarWidgetState extends State<GalleryAppBarWidget> {
final _logger = Logger("GalleryAppBar");
StreamSubscription _userAuthEventSubscription;
Function() _selectedFilesListener;
@override
void initState() {
widget.selectedFiles.addListener(() {
_selectedFilesListener = () {
setState(() {});
});
};
widget.selectedFiles.addListener(_selectedFilesListener);
_userAuthEventSubscription =
Bus.instance.on<UserAuthenticatedEvent>().listen((event) {
setState(() {});
@ -66,6 +68,7 @@ class _GalleryAppBarWidgetState extends State<GalleryAppBarWidget> {
@override
void dispose() {
_userAuthEventSubscription.cancel();
widget.selectedFiles.removeListener(_selectedFilesListener);
super.dispose();
}