Widgets themselves have no mutable state (all their fields must be final).
If you wish to associate mutable state with a widget, consider using a
StatefulWidget, which creates a State object (via
StatefulWidget.createState) whenever it is inflated into an element and
incorporated into the tree.
Widgets themselves have no mutable state (all their fields must be final).
If you wish to associate mutable state with a widget, consider using a
StatefulWidget, which creates a State object (via
StatefulWidget.createState) whenever it is inflated into an element and
incorporated into the tree.
Widgets themselves have no mutable state (all their fields must be final).
If you wish to associate mutable state with a widget, consider using a
StatefulWidget, which creates a State object (via
StatefulWidget.createState) whenever it is inflated into an element and
incorporated into the tree.
Widgets themselves have no mutable state (all their fields must be final).
If you wish to associate mutable state with a widget, consider using a
StatefulWidget, which creates a State object (via
StatefulWidget.createState) whenever it is inflated into an element and
incorporated into the tree.
Widgets themselves have no mutable state (all their fields must be final).
If you wish to associate mutable state with a widget, consider using a
StatefulWidget, which creates a State object (via
StatefulWidget.createState) whenever it is inflated into an element and
incorporated into the tree.
Widgets themselves have no mutable state (all their fields must be final).
If you wish to associate mutable state with a widget, consider using a
StatefulWidget, which creates a State object (via
StatefulWidget.createState) whenever it is inflated into an element and
incorporated into the tree.
build a widget, a State.setState call would require Flutter to entirely
rebuild the returned wrapping widget. If a Widget was used instead,
Flutter would be able to efficiently re-render only those parts that
really need to be updated. Even better, if the created widget is const,
Flutter would short-circuit most of the rebuild work.
Widgets themselves have no mutable state (all their fields must be final).
If you wish to associate mutable state with a widget, consider using a
StatefulWidget, which creates a State object (via
StatefulWidget.createState) whenever it is inflated into an element and
incorporated into the tree.
Widgets themselves have no mutable state (all their fields must be final).
If you wish to associate mutable state with a widget, consider using a
StatefulWidget, which creates a State object (via
StatefulWidget.createState) whenever it is inflated into an element and
incorporated into the tree.