ScaffoldFinder class abstract
Finds the ScaffoldState whose chrome an overlay shown from a given context will appear over.
Scaffold.maybeOf only walks upwards, so it misses the very common shape
where a page shows an overlay from its own build/State context:
Widget build(BuildContext context) { // <- this context is ABOVE the Scaffold
return Scaffold(appBar: AppBar(...), body: ...);
}
void _onSaved() => context.show(...); // must still clear the app bar
This helper keeps the unambiguous upward answer as the first choice and only descends when there is none.
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
maybeOf(
BuildContext context) → ScaffoldState? -
Returns the closest ScaffoldState above
context, or the first one below it if there is none above.