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="M14.5714 15.0036L15.4286 16.8486C15.4286 16.8486 19.2857 17.6678 19.2857 19.6162C19.2857 21 17.5714 21 17.5714 21H13L10.75 19.75" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M9.42864 15.0036L8.5715 16.8486C8.5715 16.8486 4.71436 17.6678 4.71436 19.6162C4.71436 21 6.42864 21 6.42864 21H8.50007L10.7501 19.75L13.5001 18" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M3 15.9261C3 15.9261 5.14286 15.4649 6.42857 15.0036C7.71429 8.54595 11.5714 9.00721 12 9.00721C12.4286 9.00721 16.2857 8.54595 17.5714 15.0036C18.8571 15.4649 21 15.9261 21 15.9261" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M12 7C13.1046 7 14 6.10457 14 5C14 3.89543 13.1046 3 12 3C10.8954 3 10 3.89543 10 5C10 6.10457 10.8954 7 12 7Z" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );