build method

  1. @override
Widget build(
  1. BuildContext context
)
override

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:

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="M14.25 14.75L14.5 12.5L14.926 8.66626C14.9655 8.31084 14.6872 8 14.3296 8L9.67036 8C9.31275 8 9.03454 8.31084 9.07403 8.66626L9.9407 16.4663C9.97446 16.7701 10.2313 17 10.537 17H11" stroke="currentColor" stroke-linecap="round"/>
<path d="M4.5 7C5.88071 7 7 5.88071 7 4.5C7 3.11929 5.88071 2 4.5 2C3.11929 2 2 3.11929 2 4.5C2 5.88071 3.11929 7 4.5 7Z" stroke="currentColor" stroke-miterlimit="1.5" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M4.5 4.5L9 8" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M4.49988 19.5L9.5 15.5" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M19.5 4.5L15 8" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M4.5 22C5.88071 22 7 20.8807 7 19.5C7 18.1193 5.88071 17 4.5 17C3.11929 17 2 18.1193 2 19.5C2 20.8807 3.11929 22 4.5 22Z" stroke="currentColor" stroke-miterlimit="1.5" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M19.5 7C20.8807 7 22 5.88071 22 4.5C22 3.11929 20.8807 2 19.5 2C18.1193 2 17 3.11929 17 4.5C17 5.88071 18.1193 7 19.5 7Z" stroke="currentColor" stroke-miterlimit="1.5" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M23 19V21" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M15 19V21" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M17 19V21" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M13 22.4V17.6C13 17.2686 13.2686 17 13.6 17H20.4C20.7314 17 21 17.2686 21 17.6V22.4C21 22.7314 20.7314 23 20.4 23H13.6C13.2686 23 13 22.7314 13 22.4Z" stroke="currentColor"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );