ScaffoldGeometry class
Geometry information for Scaffold components after layout is finished.
To get a ValueNotifier for the scaffold geometry of a given BuildContext, use Scaffold.geometryOf.
The ScaffoldGeometry is only available during the paint phase, because its value is computed during the animation and layout phases prior to painting.
For an example of using the ScaffoldGeometry, see the BottomAppBar, which uses the ScaffoldGeometry to paint a notch around the FloatingActionButton.
For information about the Scaffold's geometry that is used while laying out the FloatingActionButton, see ScaffoldPrelayoutGeometry.
- Annotations
Constructors
- ScaffoldGeometry(Rect? floatingActionButtonArea})
-
Create an object that describes the geometry of a Scaffold.
const
Properties
-
The distance from the Scaffold's top edge to the top edge of the
rectangle in which the Scaffold.bottomNavigationBar bar is laid out.
final
- floatingActionButtonArea → Rect?
-
The Scaffold.floatingActionButton's bounding rectangle.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
copyWith(
Rect? floatingActionButtonArea}) → ScaffoldGeometry - Creates a copy of this ScaffoldGeometry but with the given fields replaced with the new values.
-
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