[Feature request] Persisting snackbar

[a7md0]

I really liked the package (compared with showing Android styled snack bar)

I have a use case to show persisting messages until removed manually, something like "No internet connection" I want to keep the snack bar showing until the network state change.

What I tried:-

1. I was able to change the displayDuration to const Duration(days: 365) which seems fine till now
2. I was not able to override the default dismiss on click, where I want the snack bar to not be dismissible (even with adding my own onTap it is still dismissible with user clicks)
3. I was not able to dismiss the widget programmatically after showing it (this may be related to #16)

Based on the use case above, I believe these features will most likely resolve it:-

• Add bool isInfiniteDuration which default to false; However, when set to true it disables the dismiss completely.
• Add bool isDismissible which default to true; However, when set to true the user clicks won't dismiss the snack bar
• (I'm not sure if this is the best approach) Return the TopSnackBar widget with the showTopSnackBar and expose a public method to dismiss the widget

[a7md0]

I'm willing to create PR for those, if the suggested features are designed correctly

[alexeypodolian]

Hi @a7md0

Yes, great idea!

It would be great if you will prepare a PR, we will look at it 100%

[vizhan-lanars]

@a7md0
Implemented in version 1.1.1