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 fill-rule="evenodd" clip-rule="evenodd" d="M17.0573 2.54429C17.1158 2.36426 17.3684 2.35862 17.4348 2.53587L20.5488 10.8457L21.9467 14.5766C21.9782 14.6607 21.9497 14.7555 21.8771 14.8084L12.1177 21.9143C12.0476 21.9654 11.9524 21.9654 11.8823 21.9143L2.1229 14.8084C2.05027 14.7555 2.02182 14.6607 2.05334 14.5766L3.45095 10.8462L3.61783 10.3963L6.56249 2.53587C6.62889 2.35863 6.88149 2.36422 6.93999 2.54422L9.40952 10.1431C9.4363 10.2255 9.51309 10.2813 9.59973 10.2813H14.4002C14.4868 10.2813 14.5637 10.2255 14.5904 10.143L17.0573 2.54429Z" stroke="currentColor" stroke-width="1.5"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );