TwoDGridViewport class
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- RenderObjectWidget
- TwoDimensionalViewport
- TwoDGridViewport
Constructors
- TwoDGridViewport({Key? key, required CrossScrollController controller, required ViewportOffset verticalOffset, required AxisDirection verticalAxisDirection, required ViewportOffset horizontalOffset, required AxisDirection horizontalAxisDirection, required TwoDimensionalChildBuilderDelegate delegate, required Axis mainAxis, double? cacheExtent, Clip clipBehavior = Clip.hardEdge})
-
const
Properties
- cacheExtent → double?
-
The viewport has an area before and after the visible area to cache items
that are about to become visible when the user scrolls.
finalinherited
- clipBehavior → Clip
-
The content will be clipped (or not) according to this option.
finalinherited
- controller → CrossScrollController
-
final
- delegate → TwoDimensionalChildDelegate
-
A delegate that provides the children for the TwoDimensionalViewport.
finalinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- horizontalAxisDirection → AxisDirection
-
The direction in which the horizontalOffset's ViewportOffset.pixels
increases.
finalinherited
- horizontalOffset → ViewportOffset
-
Which part of the content inside the viewport should be visible in the
horizontal axis.
finalinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- mainAxis → Axis
-
The main axis of the two.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- verticalAxisDirection → AxisDirection
-
The direction in which the verticalOffset's ViewportOffset.pixels
increases.
finalinherited
- verticalOffset → ViewportOffset
-
Which part of the content inside the viewport should be visible in the
vertical axis.
finalinherited
Methods
-
createElement(
) → RenderObjectElement -
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
-
createRenderObject(
BuildContext context) → RenderTwoDimensionalViewport -
Creates an instance of the RenderObject class that this
RenderObjectWidget represents, using the configuration described by this
RenderObjectWidget.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of
DiagnosticsNode
objects describing this node's children.inherited -
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
didUnmountRenderObject(
covariant RenderObject renderObject) → void -
A render object previously associated with this widget has been removed
from the tree. The given RenderObject will be of the same type as
returned by this object's createRenderObject.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
A string representation of this object.
inherited
-
toStringDeep(
{String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a string representation of this node and its descendants.
inherited
-
toStringShallow(
{String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object.
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
-
updateRenderObject(
BuildContext context, covariant RenderTwoDimensionalGridViewport renderObject) → void -
Copies the configuration described by this RenderObjectWidget to the
given RenderObject, which will be of the same type as returned by this
object's createRenderObject.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited