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 d="M21.1679 8C19.6247 4.46819 16.1006 2 11.9999 2C6.81459 2 2.55104 5.94668 2.04932 11" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M18 8H21.4C21.7314 8 22 7.73137 22 7.4V4" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M2.88146 16C4.42458 19.5318 7.94874 22 12.0494 22C17.2347 22 21.4983 18.0533 22 13" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M6.04932 16H2.64932C2.31795 16 2.04932 16.2686 2.04932 16.6V20" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M7 12L12 19L17 12M7 12L12 5M7 12L12 13M12 5L17 12M12 5L12 13M17 12L12 13" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );