Navigator routes Clear the stack of flutter - dart

Question

In my app i have three screens login , verifyotp , generatepass. I know how to move from one page to other page eg: Navigator.pushNamed(context, "/theNameOfThePage");.
I have a flow in which i move from login->verifyotp->generatepass my question is now how can i move from generatepass to login page and clearing all the stack.
I am an android developer so in android we have intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);.
How can i achieve same result in flutter!

Answer 1

Full clean of Navigator's history and navigate to new route:
void _logout() {
Navigator.pushNamedAndRemoveUntil(context, "/newRouteName", (r) => false);
}

Answer 2

Use Navigator.popUntil.
void _logout() {
Navigator.popUntil(context, ModalRoute.withName('/login'));
}

Answer 3

To add to Paul Iluhin's answer above, if you want to pass arguments to the new page, just add the arguments after (r) => false. Here is an example.
Navigator.pushNamedAndRemoveUntil(context, "/newRouteName", (r) => false, arguments: {
"arg_1": firstArgument,
"arg_2": secondArgument
});

Answer 4

As others have already mentioned, Navigator.pushNamedAndRemoveUntil is the way to go, but in case if anyone is wondering how to do that using the component type (instead of a string route path), this is how you do it.
Navigator.pushAndRemoveUntil(context, MaterialPageRoute(builder: (_)
=> LoginPage()), (route) => false);
I personally prefer using the type name because I change my route path multiple times during the initial development until I reach a stable route name pattern and when I do that, I don't want to do a mass search/replace.