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" stroke-width="1.5" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M21.4383 11.6622L12.2483 20.8522C11.1225 21.9781 9.59552 22.6106 8.00334 22.6106C6.41115 22.6106 4.88418 21.9781 3.75834 20.8522C2.63249 19.7264 2 18.1994 2 16.6072C2 15.015 2.63249 13.4881 3.75834 12.3622L12.9483 3.17222C13.6989 2.42166 14.7169 2 15.7783 2C16.8398 2 17.8578 2.42166 18.6083 3.17222C19.3589 3.92279 19.7806 4.94077 19.7806 6.00222C19.7806 7.06368 19.3589 8.08166 18.6083 8.83222L9.40834 18.0222C9.03306 18.3975 8.52406 18.6083 7.99334 18.6083C7.46261 18.6083 6.95362 18.3975 6.57834 18.0222C6.20306 17.6469 5.99222 17.138 5.99222 16.6072C5.99222 16.0765 6.20306 15.5675 6.57834 15.1922L15.0683 6.71222" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );