VxSizedBoxExtension extension

A box with a specified size.

If given a child, this widget forces its child to have a specific width and/or height (assuming values are permitted by this widget's parent). If either the width or height is null, this widget will try to size itself to match the child's size in that dimension. If the child's size depends on the size of its parent, the height and width must be provided.

If not given a child, SizedBox will try to size itself as close to the specified height and width as possible given the parent's constraints. If height or width is null or unspecified, it will be treated as zero.

The SizedBox.expand constructor can be used to make a SizedBox that sizes itself to fit the parent. It is equivalent to setting width and height to double.infinity.

{@tool snippet}

This snippet makes the child widget (a Card with some Text) have the exact size 200x300, parental constraints permitting:

SizedBox(
  width: 200.0,
  height: 300.0,
  child: const Card(child: Text('Hello World!')),
)

{@end-tool}

See also:

• ConstrainedBox, a more generic version of this class that takes arbitrary BoxConstraints instead of an explicit width and height.
• UnconstrainedBox, a container that tries to let its child draw without constraints.
• FractionallySizedBox, a widget that sizes its child to a fraction of the total available space.
• AspectRatio, a widget that attempts to fit within the parent's constraints while also sizing its child to match a given aspect ratio.
• FittedBox, which sizes and positions its child widget to fit the parent according to a given BoxFit discipline.
• The catalog of layout widgets.

on

• Widget

Methods

fractionalBox({Key? key, required double heightFactor, required double widthFactor, Alignment? alignment}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

Extension for FractionallySizedBox

h(double height) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

All available heights SizedBox widget with a specified height

h0(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 0% height of the MediaQuery height

h1(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 1% height of the MediaQuery height

h10(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 10% height of the MediaQuery height

h15(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 15% height of the MediaQuery height

h16(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 16% height of the MediaQuery height

h2(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 2% height of the MediaQuery height

h20(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 20% height of the MediaQuery height

h24(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 24% height of the MediaQuery height

h32(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 32% height of the MediaQuery height

h4(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 4% height of the MediaQuery height

h40(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 40% height of the MediaQuery height

h48(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 48% height of the MediaQuery height

h56(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 56% height of the MediaQuery height

h60(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 60% height of the MediaQuery height

h64(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 64% height of the MediaQuery height

h8(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 8% height of the MediaQuery height

hFourFifth(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with four-fifth or 80% height of the MediaQuery height

hFull(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with full height of the MediaQuery height

hHalf(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with half or 50% height of the MediaQuery height

hOneForth(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with one-forth or 25% height of the MediaQuery height

hOneThird(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with one-third or 33.33% height of the MediaQuery height

hPCT({required BuildContext context, required double heightPCT}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with a specified height percentage

hThreeForth(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with three-forth or 75% height of the MediaQuery height

hTwoThird(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with two-third or 66.67% height of the MediaQuery height

w(double width, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

All available widths

w0(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 0% width of the MediaQuery width

w1(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 1% width of the MediaQuery width

w10(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 10% width of the MediaQuery width

w15(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 15% width of the MediaQuery width

w16(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 16% width of the MediaQuery width

w2(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 2% width of the MediaQuery width

w20(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 20% width of the MediaQuery width

w24(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 24% width of the MediaQuery width

w32(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 32% width of the MediaQuery width

w4(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 4% width of the MediaQuery width

w40(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 40% width of the MediaQuery width

w48(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 48% width of the MediaQuery width

w56(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 56% width of the MediaQuery width

w60(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 60% width of the MediaQuery width

w64(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 64% width of the MediaQuery width

w8(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 8% width of the MediaQuery width

wFourFifth(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with four-fifth or 80% width of the MediaQuery width

wFull(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with full width of the MediaQuery width

wh(double width, double height) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

All Size Width - Height

wh0(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 0% width & height of the MediaQuery width & height

wh1(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 1% width & height of the MediaQuery width & height

wh10(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 10% width & height of the MediaQuery width & height

wh15(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 15% width & height of the MediaQuery width & height

wh16(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 16% width & height of the MediaQuery width & height

wh2(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 2% width & height of the MediaQuery width & height

wh20(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 20% width & height of the MediaQuery width & height

wh24(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 24% width & height of the MediaQuery width & height

wh32(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 32% width & height of the MediaQuery width & height

wh4(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 4% width & height of the MediaQuery width & height

wh40(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 40% width & height of the MediaQuery width & height

wh48(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 48% width & height of the MediaQuery width & height

wh56(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 56% width & height of the MediaQuery width & height

wh60(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 60% width & height of the MediaQuery width & height

wh64(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 64% width & height of the MediaQuery width & height

wh8(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with 8% width & height of the MediaQuery width & height

wHalf(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with half or 50% width of the MediaQuery width

whFourFifth(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with four-fifth or 80% width & height of the MediaQuery width & height

whFull(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with full width & height of the MediaQuery width & height

whHalf(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with half or 50% width & height of the MediaQuery width & height

whOneForth(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with one-forth or 25% width & height of the MediaQuery width & height

whOneThird(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with one-third or 33.33% width & height of the MediaQuery width & height

whPCT({required BuildContext context, required double widthPCT, required double heightPCT}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with a specified width & height percentage

whThreeForth(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with three-forth or 75% width & height of the MediaQuery width & height

whTwoThird(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with two-third or 66.67% width & height of the MediaQuery width & height

wOneForth(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with one-forth or 25% width of the MediaQuery width

wOneThird(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with one-third or 33.33% width of the MediaQuery width

wPCT({required BuildContext context, required double widthPCT}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with a specified width percentage

wThreeForth(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with three-forth or 75% width of the MediaQuery width

wTwoThird(BuildContext context, {Key? key}) → Widget

Available on Widget, provided by the VxSizedBoxExtension extension

SizedBox widget with two-third or 66.67% width of the MediaQuery width