SliverExpandableChildDelegate<T, S extends ExpandableListSection<T> > class
A delegate that supplies children for SliverExpandableList using a builder callback.
Constructors
-
SliverExpandableChildDelegate({required List<
S> sectionList, required ExpandableItemBuilder itemBuilder, ExpandableListController? controller, ExpandableSeparatorBuilder? separatorBuilder, ExpandableHeaderBuilder? headerBuilder, ExpandableSectionBuilder? sectionBuilder, bool sticky = true, bool overlapsContent = false, bool removeItemsOnCollapsed = true, bool addAutomaticKeepAlives = true, bool addRepaintBoundaries = true, bool addSemanticIndexes = true})
Properties
- controller ↔ ExpandableListController?
-
expandable list controller, listen sticky header index scroll offset etc.
getter/setter pair
- delegate ↔ SliverChildBuilderDelegate
-
sliver list builder
getter/setter pair
- hashCode → int
-
The hash code for this object.
no setterinherited
- headerBuilder → ExpandableHeaderBuilder?
-
build section header
final
- itemBuilder → ExpandableItemBuilder
-
build section item
final
- overlapsContent → bool
-
Whether the header should be drawn on top of the content
instead of before.
final
- removeItemsOnCollapsed → bool
-
if value is true, when section is collapsed, all child widget in section widget will be removed.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- sectionBuilder ↔ ExpandableSectionBuilder?
-
use this return a custom content widget, when use this builder, headerBuilder
is invalid.
See also:
getter/setter pair
-
sectionList
→ List<
S> -
data source
final
-
sectionRealIndexes
→ List<
int> -
store section real index in SliverList, format:
sectionList index, SliverList index.final - separatorBuilder → ExpandableSeparatorBuilder?
-
build header and item separator, if pass null, SliverList has no separators.
default null.
final
- sticky → bool
-
whether to sticky the header.
final
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
-
buildDefaultContent(
BuildContext context, ExpandableSectionContainerInfo containerInfo) → Widget - By default, build a Column widget for layout all children's size.