SliverPersistentHeaderDelegate class abstract
Delegate for configuring a SliverPersistentHeader.
Constructors
- SliverPersistentHeaderDelegate()
-
Abstract const constructor. This constructor enables subclasses to provide
const constructors so that they can be used in const expressions.
const
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- maxExtent → double
-
The size of the header when it is not shrinking at the top of the
viewport.
no setter
- minExtent → double
-
The smallest size to allow the header to reach, when it shrinks at the
start of the viewport.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- showOnScreenConfiguration → PersistentHeaderShowOnScreenConfiguration?
-
Specifies how floating headers and pinned headers should behave in
response to RenderObject.showOnScreen calls.
no setter
- snapConfiguration → FloatingHeaderSnapConfiguration?
-
Specifies how floating headers should animate in and out of view.
no setter
- stretchConfiguration → OverScrollHeaderStretchConfiguration?
-
Specifies an AsyncCallback and offset for execution.
no setter
- vsync → TickerProvider?
-
A TickerProvider to use when animating the header's size changes.
no setter
Methods
-
build(
BuildContext context, double shrinkOffset, bool overlapsContent) → Widget - The widget to place inside the SliverPersistentHeader.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
shouldRebuild(
covariant SliverPersistentHeaderDelegate oldDelegate) → bool - Whether this delegate is meaningfully different from the old delegate.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
