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We need close one screen and open a second screen. And show snackbar on the second screen from first screen.
I tried to use Navigator.push, but this screen is already open and we have this error
Bad state: Stream has already been listened to.
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you probably have a parent widget that contains Scaffold as well. Create a scaffoldKey for that and pass it to your child widget that have to show the Snakcbar . Note that you can't use Sanckbar without Scaffold widget.
top-snackbar-flutter If you need to show the user some information in a nice way, you can use this package. The API is as simple as API for regular Material method showDialog . If you need to use your own widget to display, you can pass it into showTopSnackBar function.
Instead of Snackbar i would suggest you to use Flushbar plugin for flutter it is easy to use and it'll take care of everything and u can customize it to a great extent . Snackbar needs a scaffold ancestor to work but Flushbar doesn't and it takes care of all the extra stuff itself and provides with ton of cool features.
Flushbar Plugin here
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