I'm trying to detect that user is no longer authenticated and redirect user to login. This is how I'm doing it
Widget build(BuildContext context) {
return FutureBuilder(
future: _getData(context),
builder: (context, snapshot) {
try {
if (snapshot.hasError && _isAuthenticationError(snapshot.error)) {
Navigator.push(context, MaterialPageRoute(builder: (context) => LoginView()));
}
Unfortunately doing navigation on build is not working. It throws this error
flutter: setState() or markNeedsBuild() called during build.
flutter: This Overlay widget cannot be marked as needing to build because the framework is already in the
flutter: process of building widgets. A widget can be marked as needing to be built during the build
I cannot just return LoginView
widget since parent widget containts app bar and floating button and login view needs to be displayed without these controlls.. I need to navigate.
Is it possible to do it?
Wrap it in Future.microtask
. This will schedule it to happen on the next async task cycle (i.e. after build
is complete).
Future.microtask(() => Navigator.push(
context,
MaterialPageRoute(builder: (context) => LoginView())
));
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