[Flutter] Programmatically make modalBottomSheet dismissable in Flutter

I use showModalBottomSheet to render a bottom sheet with buttons (StatefulWidgetWithButtons). Once a button is pressed the state of the sheet changes and it gets re-rendered with different content.

I would like that depending on a certain state the sheet becomes not dismissable. I can achieve this using

showModalBottomSheet(
isDismissable: false
builder: (context) => StatefulWidgetWithButtons()
)


however what I want to achieve is that depending on a certain button pressed within StatefulWidgetWithButtons the isDismissable property changes to true (or false).

I don't know how to achieve this since I know I can change the StatefulWidgetWithButtons but that won't rebuild the bottom sheet.

I also don't want to close and show again the bottom sheet but change its dismissable behaviour while it is rendered

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