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="M5.5 16C10.5 18.5 13.5 18.5 18.5 16" stroke="currentColor"  stroke-linecap="round" stroke-linejoin="round"/>
<path d="M15.5 17.5L16.5 19.5C16.5 19.5 20.6713 18.1717 22 16C22 15 22.5301 7.85339 19 5.5C17.5 4.5 15 4 15 4L14 6H12" stroke="currentColor"  stroke-linecap="round" stroke-linejoin="round"/>
<path d="M8.52832 17.5L7.52832 19.5C7.52832 19.5 3.35699 18.1717 2.02832 16C2.02832 15 1.49823 7.85339 5.02832 5.5C6.52832 4.5 9.02832 4 9.02832 4L10.0283 6H12.0283" stroke="currentColor"  stroke-linecap="round" stroke-linejoin="round"/>
<path d="M8.5 14C7.67157 14 7 13.1046 7 12C7 10.8954 7.67157 10 8.5 10C9.32843 10 10 10.8954 10 12C10 13.1046 9.32843 14 8.5 14Z" stroke="currentColor"  stroke-linecap="round" stroke-linejoin="round"/>
<path d="M15.5 14C14.6716 14 14 13.1046 14 12C14 10.8954 14.6716 10 15.5 10C16.3284 10 17 10.8954 17 12C17 13.1046 16.3284 14 15.5 14Z" stroke="currentColor"  stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );