ListWheelChildManager class abstract
A delegate used by RenderListWheelViewport to manage its children.
RenderListWheelViewport during layout will ask the delegate to create children that are visible in the viewport and remove those that are not.
- Implementers
Constructors
Properties
- childCount → int?
-
The maximum number of children that can be provided to
RenderListWheelViewport.
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
childExistsAt(
int index) → bool - Checks whether the delegate is able to provide a child widget at the given index.
-
createChild(
int index, {required RenderBox? after}) → void -
Creates a new child at the given index and updates it to the child list
of RenderListWheelViewport. If no child corresponds to
index, then do nothing. -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
removeChild(
RenderBox child) → void - Removes the child element corresponding with the given RenderBox.
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited