WidgetExtension extension

Extension methods on Widget for convenient flexbox layout configuration.

This extension provides a fluent, chainable API for configuring widget properties in flexbox layouts. Instead of wrapping widgets in multiple layout widgets, you can use these extension methods to declaratively define sizing, positioning, alignment, and flex behavior.

The extension methods wrap widgets in FlexItem or AbsoluteItem internally, managing the configuration efficiently through a wrapper mechanism that avoids unnecessary nesting when methods are chained.

Example:

Container(color: Colors.blue)
  .width(100.size)
  .height(50.size)
  .flexGrow(1)
  .selfAligned(BoxAlignment.center)
on

Properties

asAbsoluteItem → Widget

Available on Widget, provided by the WidgetExtension extension

Explicitly wraps this widget as an AbsoluteItem.
no setter
asFlexItem → Widget

Available on Widget, provided by the WidgetExtension extension

Explicitly wraps this widget as a FlexItem.
no setter

Methods

aspectRatio(double aspectRatio, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the aspect ratio constraint for this widget.
bottom(PositionUnit bottom, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the distance from the bottom edge of the parent container.
constrained({SizeUnit? minWidth, SizeUnit? maxWidth, SizeUnit? minHeight, SizeUnit? maxHeight, Key? key}) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets comprehensive size constraints including both minimum and maximum bounds.
flexGrow(double flexGrow, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the flex grow factor for this widget within a flex container.
flexShrink(double flexShrink, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the flex shrink factor for this widget within a flex container.
height(SizeUnit height, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the height of this widget using a SizeUnit.
id(Object valueKey) → Widget

Available on Widget, provided by the WidgetExtension extension

Assigns a ValueKey to this widget using the provided value.
key(Key key) → Widget

Available on Widget, provided by the WidgetExtension extension

Assigns a Key to this widget.
left(PositionUnit left, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the distance from the left edge of the parent container.
maxHeight(SizeUnit maxHeight, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the maximum height constraint for this widget using a SizeUnit.
maxSized({SizeUnit? maxWidth, SizeUnit? maxHeight, Key? key}) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets maximum width and height constraints simultaneously.
maxWidth(SizeUnit maxWidth, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the maximum width constraint for this widget using a SizeUnit.
minHeight(SizeUnit minHeight, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the minimum height constraint for this widget using a SizeUnit.
minSized({SizeUnit? minWidth, SizeUnit? minHeight, Key? key}) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets minimum width and height constraints simultaneously.
minWidth(SizeUnit minWidth, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the minimum width constraint for this widget using a SizeUnit.
paintOrder(int paintOrder, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the paint order for this widget within its parent container.
position(PositionType position, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the position type for this widget to control positioning context.
positioned({PositionUnit? top, PositionUnit? left, PositionUnit? bottom, PositionUnit? right, Key? key}) → Widget

Available on Widget, provided by the WidgetExtension extension

Positions the widget using multiple edge offsets simultaneously.

Available on Widget, provided by the WidgetExtension extension

Sets the distance from the right edge of the parent container.
selfAligned(BoxAlignmentGeometry alignSelf, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the alignment of this widget within its parent flex container.
sized({SizeUnit? width, SizeUnit? height, Key? key}) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets both width and height dimensions simultaneously.
top(PositionUnit top, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the distance from the top edge of the parent container.
width(SizeUnit width, [Key? key]) → Widget

Available on Widget, provided by the WidgetExtension extension

Sets the width of this widget using a SizeUnit.