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="M19.8566 15.2C19.1306 14.4595 18.119 14 17 14C14.7909 14 13 15.7909 13 18C13 19.0902 13.4361 20.0785 14.1434 20.8M19.8566 15.2C20.5639 15.9215 21 16.9098 21 18C21 20.2091 19.2091 22 17 22C15.881 22 14.8694 21.5405 14.1434 20.8M19.8566 15.2L14.1434 20.8" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M9 22H7C5.89543 22 5 21.1046 5 20V11.1817C5 11.0632 4.96494 10.9474 4.89923 10.8488L3.10077 8.15115C3.03506 8.05259 3 7.93679 3 7.81833V2.6C3 2.26863 3.26863 2 3.6 2H5.4C5.73137 2 6 2.26863 6 2.6V4.4C6 4.73137 6.26863 5 6.6 5H9.4C9.73137 5 10 4.73137 10 4.4V2.6C10 2.26863 10.2686 2 10.6 2H13.4C13.7314 2 14 2.26863 14 2.6V4.4C14 4.73137 14.2686 5 14.6 5H17.4C17.7314 5 18 4.73137 18 4.4V2.6C18 2.26863 18.2686 2 18.6 2H20.4C20.7314 2 21 2.26863 21 2.6V7.81833C21 7.93679 20.9649 8.05259 20.8992 8.15115L20 9.5" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );