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="48" height="48" viewBox="0 0 48 48" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M18.7479 12.8156C17.0072 12.8833 15.4353 13.5043 14.5944 14.3454C14.2039 14.736 13.5707 14.736 13.1802 14.3455C12.7896 13.9551 12.7895 13.3219 13.18 12.9313C14.4774 11.6337 16.5888 10.8981 18.6701 10.8171C20.765 10.7356 23.0521 11.3092 24.6538 12.9112C25.0442 13.3017 25.0442 13.9349 24.6536 14.3254C24.2631 14.7159 23.6299 14.7158 23.2394 14.3253C22.1484 13.234 20.4749 12.7484 18.7479 12.8156Z" fill="black"/>
<path fill-rule="evenodd" clip-rule="evenodd" d="M27.3841 28.9355C25.1207 30.8475 22.1949 32 19 32C11.8203 32 6 26.1797 6 19C6 11.8203 11.8203 6 19 6C26.1797 6 32 11.8203 32 19C32 22.1949 30.8475 25.1207 28.9355 27.3841L31.1442 27L41.4278 37.2837C42.1907 38.0466 42.1907 39.2835 41.4278 40.0464L40.0464 41.4278C39.2835 42.1907 38.0466 42.1907 37.2837 41.4278L27 31.1442L27.3841 28.9355ZM30 19C30 25.0751 25.0751 30 19 30C12.9249 30 8 25.0751 8 19C8 12.9249 12.9249 8 19 8C25.0751 8 30 12.9249 30 19ZM37.2487 35.933L30.464 29.1483L29.3432 29.3432L29.1483 30.464L35.953 37.2687L37.2487 35.933ZM37.3674 38.6831L38.665 39.9808L39.9808 38.665L38.6631 37.3474L37.3674 38.6831Z" fill="black"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );