Flutter snackbar dismiss on SnackBarAction onPressed

I want to dismiss SnackBar on SnackBarAction's onPressed method. I tried with Navigator.of(context).pop(); but SnackBar is not dismissing my screen get black instead.

Here is code:

 void showInSnackBar(String value) {
homeScaffoldKey.currentState.showSnackBar(new SnackBar(content: new Text(value),
  action: SnackBarAction(
    label: 'Dissmiss',
    textColor: Colors.yellow,
    onPressed: () {
    //  Navigator.of(context).pop();
    },
  ),));
}

Try using hideCurrentSnackBar method

onPressed: () {
    homeScaffoldKey.currentState.hideCurrentSnackBar();
},

Update

Use ScaffoldMessenger instead, heee you have the guide:

https://docs.flutter.dev/release/breaking-changes/scaffold-messenger

More info here: https://api.flutter.dev/flutter/material/ScaffoldMessengerState/hideCurrentSnackBar.html