Why sometimes snackbar is failing
170
Try to check if the widget is still mounted in the three:
void showFailedSnackBar(String s) {
if (mounted) {
SnackBar snackBar = SnackBar(
content: Text(s),
duration: Duration(seconds: 3),
backgroundColor: Theme.of(context).primaryColor,
);
ScaffoldMessenger.of(context).showSnackBar(snackBar);
}
}
Author by
inter cretasyo
Updated on December 28, 2022Comments
-
inter cretasyo over 1 year
Please help to explain why sometimes my SnackBar is showing an error. I don't understand at which circumstance the issue will come. I just want to point also that even though it is showing the error, in the app itself, it is working fine.
Here's my code:
void showFailedSnackBar(String s) { SnackBar snackBar = SnackBar( content: Text(s), duration: Duration(seconds: 3), backgroundColor: Theme.of(context).primaryColor, ); ScaffoldMessenger.of(context).showSnackBar(snackBar); }
Here's the error:
E/flutter ( 7879): [ERROR:flutter/lib/ui/ui_dart_state.cc(186)] Unhandled Exception: This widget has been unmounted, so the State no longer has a context (and should be considered defunct). E/flutter ( 7879): Consider canceling any active work during "dispose" or using the "mounted" getter to determine if the State is still active.