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" stroke-width="1.5" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M9.87868 14.1218C11.0503 15.2934 12.9497 15.2934 14.1213 14.1218C15.2929 12.9502 15.2929 11.0507 14.1213 9.87913C12.9497 8.70756 11.0503 8.70756 9.87868 9.87913C8.70711 11.0507 8.7071 12.9502 9.87868 14.1218Z" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M4.37076 16.7726C4.09132 16.3274 3.84879 15.8547 3.64986 15.3612C3.23116 14.323 3.00098 13.1891 3.00098 12.0012C3.00098 7.7649 5.93471 4.20879 9.8792 3.25392C10.5594 3.0891 11.2698 3.00195 12.0002 3.00195" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M19.7148 7.3667C20.5304 8.72132 20.9993 10.3061 20.9993 12.0008C20.9993 15.807 18.6311 19.0638 15.29 20.3786C14.2708 20.7793 13.1605 21 12.0001 21" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path fill-rule="evenodd" clip-rule="evenodd" d="M14.1213 9.87918C14.1213 9.87918 14.1121 7.07691 15.5355 5.63653C16.9455 4.22798 18.3293 2.77204 19.7782 4.22232C21.1549 5.60047 19.793 7.03166 18.364 8.46496C16.9625 9.87069 14.1213 9.87918 14.1213 9.87918Z" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path fill-rule="evenodd" clip-rule="evenodd" d="M9.87869 14.1208C9.87869 14.1208 9.88788 16.9231 8.46448 18.3635C7.0545 19.772 5.6707 21.228 4.22183 19.7777C2.8451 18.3995 4.20698 16.9683 5.63605 15.535C7.03753 14.1293 9.87869 14.1208 9.87869 14.1208Z" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
  colorFilter: color != null
      ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn)
      : null,
  width: width,
  height: height,
);