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" fill="none" xmlns="http://www.w3.org/2000/svg">
<path fill-rule="evenodd" clip-rule="evenodd" d="M1.25 12C1.25 6.06294 6.06294 1.25 12 1.25C17.9371 1.25 22.75 6.06294 22.75 12C22.75 17.9371 17.9371 22.75 12 22.75C6.06294 22.75 1.25 17.9371 1.25 12ZM10.3446 7.60313C10.0001 7.89541 9.75 8.34102 9.75 9.00001C9.75 9.41422 9.41421 9.75001 9 9.75001C8.58579 9.75001 8.25 9.41422 8.25 9.00001C8.25 7.90898 8.68736 7.04209 9.37414 6.45937C10.0446 5.89048 10.9119 5.625 11.75 5.625C12.5882 5.625 13.4554 5.89049 14.1259 6.45938C14.8126 7.0421 15.25 7.90899 15.25 9.00001C15.25 9.76589 15.0538 10.3495 14.7334 10.8301C14.4642 11.234 14.1143 11.5462 13.839 11.7919L13.839 11.7919L13.8385 11.7923L13.8366 11.794C13.8074 11.8201 13.779 11.8454 13.7517 11.87C13.4445 12.1464 13.213 12.3743 13.0433 12.6741C12.881 12.9609 12.75 13.3616 12.75 13.9999C12.75 14.4142 12.4142 14.7499 12 14.7499C11.5858 14.7499 11.25 14.4142 11.25 13.9999C11.25 13.1383 11.4315 12.4765 11.7379 11.9352C12.037 11.4069 12.4305 11.041 12.7483 10.755L12.8205 10.6901C13.1207 10.4204 13.3276 10.2347 13.4853 9.99803C13.6337 9.77553 13.75 9.48414 13.75 9.00001C13.75 8.34103 13.4999 7.89542 13.1554 7.60314C12.7946 7.29702 12.2868 7.125 11.75 7.125C11.2131 7.125 10.7054 7.29702 10.3446 7.60313ZM12.5675 18.5008C12.8446 18.1929 12.8196 17.7187 12.5117 17.4416C12.2038 17.1645 11.7296 17.1894 11.4525 17.4973L11.4425 17.5084C11.1654 17.8163 11.1904 18.2905 11.4983 18.5676C11.8062 18.8447 12.2804 18.8197 12.5575 18.5119L12.5675 18.5008Z" fill="currentColor"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );