snackbar duration flutter code example
Example 1: snackbar in flutter
final snackBar = SnackBar(content: Text('Yay! A SnackBar!'));
// Find the ScaffoldMessenger in the widget tree
// and use it to show a SnackBar.
ScaffoldMessenger.of(context).showSnackBar(snackBar);
Example 2: snackbar in flutter
final snackBar = SnackBar(
content: Text('Yay! A SnackBar!'),
action: SnackBarAction(
label: 'Undo',
onPressed: () {
// Some code to undo the change.
},
),
);