LayoutGrid class
Lays out its children using a approximation of the CSS Grid Layout algorithm, as described here:
https://drafts.csswg.org/css-grid/
If a grid item falls outside of the area defined by the template tracks, an FlutterError will be thrown during layout.
- Inheritance
- Available Extensions
Constructors
-
LayoutGrid({Key? key, AutoPlacement autoPlacement = AutoPlacement.rowSparse, GridFit gridFit = GridFit.expand, String? areas, required List<
TrackSize> columnSizes, required List<TrackSize> rowSizes, double? rowGap, double? columnGap, TextDirection? textDirection, List<Widget> children = const []})
Properties
- areas → String?
-
Defines named areas of the grid for placement of grid items by name.
final
- autoPlacement → AutoPlacement
-
Controls how the auto-placement algorithm works, specifying exactly how
auto-placed items get flowed into the grid.
final
-
children
→ List<
Widget> -
The widgets below this widget in the tree.
finalinherited
- columnGap → double
-
Space between column tracks
final
-
columnSizes
→ List<
TrackSize> -
Defines the track sizing functions of the grid's columns.
final
- gridFit → GridFit
-
Determines the constraints available to the grid layout algorithm.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- rowGap → double
-
Space between row tracks
final
-
rowSizes
→ List<
TrackSize> -
Defines the track sizing functions of the grid's rows.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- textDirection → TextDirection?
-
The text direction used to resolve column ordering.
final
Methods
-
createElement(
) → MultiChildRenderObjectElement -
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
-
createRenderObject(
BuildContext context) → RenderLayoutGrid -
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.
override
-
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 RenderLayoutGrid 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