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" stroke-width="1.5" fill="none" xmlns="http://www.w3.org/2000/svg">
<path fill-rule="evenodd" clip-rule="evenodd" d="M12 4.15039C10.8087 4.15039 9.42076 4.17798 8.06649 4.21628L8.01146 4.21784C6.63265 4.25681 5.52112 4.28823 4.64461 4.43318C3.73199 4.58411 2.97386 4.87211 2.36772 5.49563C1.75996 6.12082 1.49451 6.89404 1.3699 7.81907C1.24996 8.70944 1.24998 9.83697 1.25 11.2382V11.2382V12.7627V12.7627C1.24998 14.1639 1.24996 15.2914 1.3699 16.1818C1.4945 17.1068 1.75996 17.88 2.36771 18.5052C2.97384 19.1287 3.73195 19.4167 4.64456 19.5676C5.52106 19.7126 6.63258 19.744 8.01137 19.783H8.0114L8.06639 19.7846C9.42068 19.8229 10.8087 19.8505 12 19.8505C13.1913 19.8505 14.5793 19.8229 15.9336 19.7846L15.9886 19.783H15.9886C17.3674 19.744 18.4789 19.7126 19.3554 19.5676C20.2681 19.4167 21.0262 19.1287 21.6323 18.5052C22.24 17.88 22.5055 17.1068 22.6301 16.1818C22.75 15.2914 22.75 14.1639 22.75 12.7627V11.2381C22.75 9.83696 22.75 8.70944 22.6301 7.81907C22.5055 6.89404 22.24 6.12082 21.6323 5.49563C21.0261 4.87211 20.268 4.58411 19.3554 4.43318C18.4789 4.28823 17.3674 4.25681 15.9885 4.21784L15.9335 4.21628C14.5792 4.17798 13.1913 4.15039 12 4.15039ZM10.8721 14.6512C10.64 14.7838 10.3548 14.7829 10.1236 14.6487C9.89232 14.5145 9.75 14.2674 9.75 14V10C9.75 9.73265 9.89232 9.48551 10.1236 9.35132C10.3548 9.21713 10.64 9.21617 10.8721 9.34882L14.3721 11.3488C14.6058 11.4823 14.75 11.7309 14.75 12C14.75 12.2691 14.6058 12.5177 14.3721 12.6512L10.8721 14.6512Z" fill="currentColor"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );