Class RenderSliverFixedExtentBoxAdaptor

Inheritance
System.Object
Diagnosticable
DiagnosticableTree
AbstractNodeMixinDiagnosticableTree
RenderObject
RenderSliver
ContainerRenderObjectMixinRenderSliver<RenderBox, SliverMultiBoxAdaptorParentData>
RenderSliverMultiBoxAdaptor
RenderSliverFixedExtentBoxAdaptor
RenderSliverFillViewport
RenderSliverFixedExtentList
Inherited Members
Namespace: Unity.UIWidgets.rendering
Syntax
public abstract class RenderSliverFixedExtentBoxAdaptor : RenderSliverMultiBoxAdaptor, HitTestTarget, ContainerRenderObjectMixin

Constructors

RenderSliverFixedExtentBoxAdaptor(RenderSliverBoxChildManager)

Declaration
protected RenderSliverFixedExtentBoxAdaptor(RenderSliverBoxChildManager childManager = null)
Parameters
Type Name Description
RenderSliverBoxChildManager childManager

Properties

itemExtent

Declaration
public abstract float itemExtent { get; set; }
Property Value
Type Description
System.Single

Methods

computeMaxScrollOffset(SliverConstraints, Single)

Declaration
protected float computeMaxScrollOffset(SliverConstraints constraints, float itemExtent)
Parameters
Type Name Description
SliverConstraints constraints
System.Single itemExtent
Returns
Type Description
System.Single

estimateMaxScrollOffset(SliverConstraints, Int32, Int32, Single, Single)

Declaration
protected virtual float estimateMaxScrollOffset(SliverConstraints constraints, int firstIndex = 0, int lastIndex = 0, float leadingScrollOffset = 0F, float trailingScrollOffset = 0F)
Parameters
Type Name Description
SliverConstraints constraints
System.Int32 firstIndex
System.Int32 lastIndex
System.Single leadingScrollOffset
System.Single trailingScrollOffset
Returns
Type Description
System.Single

getMaxChildIndexForScrollOffset(Single, Single)

Declaration
protected virtual int getMaxChildIndexForScrollOffset(float scrollOffset, float itemExtent)
Parameters
Type Name Description
System.Single scrollOffset
System.Single itemExtent
Returns
Type Description
System.Int32

getMinChildIndexForScrollOffset(Single, Single)

Declaration
protected virtual int getMinChildIndexForScrollOffset(float scrollOffset, float itemExtent)
Parameters
Type Name Description
System.Single scrollOffset
System.Single itemExtent
Returns
Type Description
System.Int32

indexToLayoutOffset(Single, Int32)

Declaration
protected virtual float indexToLayoutOffset(float itemExtent, int index)
Parameters
Type Name Description
System.Single itemExtent
System.Int32 index
Returns
Type Description
System.Single

performLayout()

Declaration
protected override void performLayout()
Overrides

Extension Methods