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="M4.11543 14.0149C3.95724 15.3855 3.95988 16.6715 4.01198 17.6795C4.07734 18.9439 5.05607 19.9227 6.3205 19.988C7.32849 20.0401 8.61453 20.0428 9.98508 19.8846M4.11543 14.0149C4.39374 11.6036 5.16988 8.93063 7.05025 7.05025C8.93063 5.16988 11.6036 4.39374 14.0149 4.11543M4.11543 14.0149L9.98508 19.8846M9.98508 19.8846C12.3964 19.6063 15.0694 18.8301 16.9497 16.9497C18.8301 15.0694 19.6063 12.3964 19.8846 9.98508M14.0149 4.11543C15.3855 3.95724 16.6715 3.95988 17.6795 4.01198C18.9439 4.07734 19.9227 5.05607 19.988 6.3205C20.0401 7.32849 20.0428 8.61453 19.8846 9.98508M14.0149 4.11543L19.8846 9.98508M9.17158 14.8284L10.5858 13.4142M10.5858 13.4142L9.17158 12M10.5858 13.4142L12 14.8284M10.5858 13.4142L13.4142 10.5858M13.4142 10.5858L14.8284 9.17158M13.4142 10.5858L12 9.17158M13.4142 10.5858L14.8284 12" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );