How to prevent Android System Back button to dismiss alert ?

[SuYungCheng]

I want to keep the alert on the screen.

But when I touch android system back button ,

The alert will be dismiss and I had tried to use WillPopScope to wrap the Scaffold body.

It's seems useless.

Please help me . Thanks

[bynalab]

@SuYungCheng I think there is a onWillPopActive parameter you can set to true for that.

[SuYungCheng]

thanks!