build method

@override Widget build(BuildContext context)

Describes the part of the user interface represented by this widget.

The framework calls this method when this widget is inserted into the tree in a given BuildContext and when the dependencies of this widget change (e.g., an InheritedWidget referenced by this widget changes). This method can potentially be called in every frame and should not have any side effects beyond building a widget.

The framework replaces the subtree below this widget with the widget returned by this method, either by updating the existing subtree or by removing the subtree and inflating a new subtree, depending on whether the widget returned by this method can update the root of the existing subtree, as determined by calling Widget.canUpdate.

Typically implementations return a newly created constellation of widgets that are configured with information from this widget's constructor and from the given BuildContext.

The given BuildContext contains information about the location in the tree at which this widget is being built. For example, the context provides the set of inherited widgets for this location in the tree. A given widget might be built with multiple different BuildContext arguments over time if the widget is moved around the tree or if the widget is inserted into the tree in multiple places at once.

The implementation of this method must only depend on:

• the fields of the widget, which themselves must not change over time, and
• any ambient state obtained from the context using BuildContext.dependOnInheritedWidgetOfExactType.

If a widget's build method is to depend on anything else, use a StatefulWidget instead.

See also:

• StatelessWidget, which contains the discussion on performance considerations.

Implementation

@override
widgets.Widget build(widgets.BuildContext context) => SvgPicture.string(
      '''
<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
<path fill-rule="evenodd" clip-rule="evenodd" d="M1.25 12C1.25 6.06294 6.06294 1.25 12 1.25C17.9371 1.25 22.75 6.06294 22.75 12C22.75 17.9371 17.9371 22.75 12 22.75C6.06294 22.75 1.25 17.9371 1.25 12ZM10.0974 4.86735C10.4469 4.64497 10.9105 4.74798 11.1328 5.09744L12 6.46012L12.8672 5.09744C13.0895 4.74798 13.5531 4.64497 13.9026 4.86735C14.252 5.08973 14.355 5.5533 14.1327 5.90275L12.889 7.85709L16.3208 13.25H17.5C17.9142 13.25 18.25 13.5858 18.25 14C18.25 14.4142 17.9142 14.75 17.5 14.75H17.2754L18.1328 16.0974C18.3552 16.4469 18.2522 16.9105 17.9028 17.1328C17.5533 17.3552 17.0897 17.2522 16.8673 16.9028L12 9.25406L9.45713 13.25H13.5C13.9142 13.25 14.25 13.5858 14.25 14C14.25 14.4142 13.9142 14.75 13.5 14.75H8.50258L7.13265 16.9028C6.91027 17.2522 6.4467 17.3552 6.09725 17.1328C5.74779 16.9105 5.64478 16.4469 5.86716 16.0974L6.72462 14.75H6.5C6.08579 14.75 5.75 14.4142 5.75 14C5.75 13.5858 6.08579 13.25 6.5 13.25H7.67916L11.111 7.85709L9.86735 5.90275C9.64497 5.5533 9.74798 5.08973 10.0974 4.86735Z" fill="currentColor"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );