Space class
A widget that takes a fixed amount of space in the direction of its parent.
It only works in the following cases:
- It is a descendant of a Row, Column, or Flex, and the path from the Space widget to its enclosing Row, Column, or Flex must contain only StatelessWidgets or StatefulWidgets (not other kinds of widgets, like RenderObjectWidgets).
- It is a descendant of a Scrollable.
See also:
- MaxSpace, a Space that can take, at most, the amount of space specified.
- SliverSpace, the sliver version of this widget.
- Inheritance
- Available extensions
Constructors
- Space.new(double mainAxisExtent, {Key? key, double? crossAxisExtent, Color? color})
-
Creates a widget that takes a fixed
mainAxisExtent
of space in the direction of its parent.const - Space.expand(double mainAxisExtent, {Key? key, Color? color})
-
Creates a widget that takes a fixed
mainAxisExtent
of space in the direction of its parent and expands in the cross axis direction.const
Properties
- color → Color?
-
The color used to fill the Space.
final
- crossAxisExtent → double?
-
The amount of space this widget takes in the opposite direction of the
parent.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- mainAxisExtent → double
-
The amount of space this widget takes in the direction of its parent.
final
- makeRefreshable → Widget
-
Available on Widget?, provided by the WidgetExtension extension
Make your any widget refreshable with RefreshIndicator on topno setter - runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
override
-
center(
{double? heightFactor, double? widthFactor}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
set parent widget in center -
cornerRadiusWithClipRRect(
double radius) → ClipRRect -
Available on Widget?, provided by the WidgetExtension extension
add corner radius -
cornerRadiusWithClipRRectOnly(
{int bottomLeft = 0, int bottomRight = 0, int topLeft = 0, int topRight = 0}) → ClipRRect -
Available on Widget?, provided by the WidgetExtension extension
add custom corner radius each side -
createElement(
) → StatelessElement -
Creates a StatelessElement to manage this widget's location in the tree.
inherited
-
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
-
expand(
{dynamic flex = 1}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
add Expanded to parent widget -
fit(
{BoxFit? fit, AlignmentGeometry? alignment}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
add FittedBox to parent widget -
flexible(
{dynamic flex = 1, FlexFit? fit}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
add Flexible to parent widget -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
onTap(
Function? function, {BorderRadius? borderRadius, Color? splashColor, Color? hoverColor, Color? highlightColor}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
add tap to parent widget -
opacity(
{required double opacity, int durationInSecond = 1, Duration? duration}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
add opacity to parent widget -
paddingAll(
double padding) → Padding -
Available on Widget?, provided by the WidgetExtension extension
return padding all -
paddingBottom(
double bottom) → Padding -
Available on Widget?, provided by the WidgetExtension extension
return padding bottom -
paddingLeft(
double left) → Padding -
Available on Widget?, provided by the WidgetExtension extension
return padding left -
paddingOnly(
{double top = 0.0, double left = 0.0, double bottom = 0.0, double right = 0.0}) → Padding -
Available on Widget?, provided by the WidgetExtension extension
return custom padding from each side -
paddingRight(
double right) → Padding -
Available on Widget?, provided by the WidgetExtension extension
return padding right -
paddingSymmetric(
{double vertical = 0.0, double horizontal = 0.0}) → Padding -
Available on Widget?, provided by the WidgetExtension extension
return padding symmetric -
paddingTop(
double top) → Padding -
Available on Widget?, provided by the WidgetExtension extension
return padding top -
rotate(
{required double angle, bool transformHitTests = true, Offset? origin}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
add rotation to parent widget -
scale(
{required double scale, Offset? origin, AlignmentGeometry? alignment, bool transformHitTests = true}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
add scaling to parent widget -
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, int wrapWidth = 65}) → 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
-
translate(
{required Offset offset, bool transformHitTests = true, Key? key}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
add translate to parent widget -
validate(
{Widget value = const SizedBox()}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
Validate given widget is not null and returns given value if null. -
visible(
bool visible, {Widget? defaultWidget}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
set visibility -
withHeight(
double height) → SizedBox -
Available on Widget?, provided by the WidgetExtension extension
With custom height -
withShaderMask(
List< Color> colors, {BlendMode blendMode = BlendMode.srcATop}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
Wrap with ShaderMask widget -
withShaderMaskGradient(
Gradient gradient, {BlendMode blendMode = BlendMode.srcATop}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
Wrap with ShaderMask widget Gradient -
withSize(
{double width = 0.0, double height = 0.0}) → SizedBox -
Available on Widget?, provided by the WidgetExtension extension
With custom height and width -
withTooltip(
{required String msg}) → Widget -
Available on Widget?, provided by the WidgetExtension extension
Validate given widget is not null and returns given value if null. -
withWidth(
double width) → SizedBox -
Available on Widget?, provided by the WidgetExtension extension
With custom width
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited