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="M7.78415 1.35644C6.28844 1.0927 4.86213 2.09142 4.5984 3.58713L2.16732 17.3744C1.90359 18.8701 2.9023 20.2965 4.39801 20.5602L16.2157 22.644C17.7114 22.9077 19.1377 21.909 19.4015 20.4133L21.8325 6.62597C22.0963 5.13026 21.0976 3.70395 19.6018 3.44022L7.78415 1.35644ZM9.05919 5.64323C8.65127 5.5713 8.26228 5.84368 8.19035 6.2516C8.11842 6.65952 8.3908 7.04851 8.79872 7.12044L16.6772 8.50963C17.0851 8.58155 17.4741 8.30918 17.546 7.90126C17.618 7.49334 17.3456 7.10434 16.9377 7.03242L9.05919 5.64323ZM7.49577 10.1911C7.5677 9.78313 7.95669 9.51076 8.36461 9.58268L16.2431 10.9719C16.651 11.0438 16.9234 11.4328 16.8514 11.8407C16.7795 12.2486 16.3905 12.521 15.9826 12.4491L8.10414 11.0599C7.69622 10.988 7.42384 10.599 7.49577 10.1911ZM7.67003 13.5212C7.26211 13.4492 6.87312 13.7216 6.80119 14.1295C6.72926 14.5374 7.00164 14.9264 7.40956 14.9984L12.3336 15.8666C12.7415 15.9385 13.1305 15.6662 13.2024 15.2582C13.2744 14.8503 13.002 14.4613 12.5941 14.3894L7.67003 13.5212Z" fill="currentColor"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );