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="M27 15.5C27 17.433 25.433 19 23.5 19C21.567 19 20 17.433 20 15.5C20 13.567 21.567 12 23.5 12C25.433 12 27 13.567 27 15.5Z" fill="black"/>
<path d="M26 23.5C26 22.8364 25.6708 22.2159 25.1213 21.8439C24.5717 21.4718 23.8734 21.3966 23.2572 21.643L18.9003 23.3858L20.3858 27.0997L22 26.4541V34.5C22 35.1932 22.3589 35.8369 22.9485 36.2013C23.5382 36.5657 24.2745 36.5988 24.8944 36.2889L29.6833 33.8944L27.8944 30.3167L26 31.2639V23.5Z" fill="black"/>
<path fill-rule="evenodd" clip-rule="evenodd" d="M24 44C35.0457 44 44 35.0457 44 24C44 12.9543 35.0457 4 24 4C12.9543 4 4 12.9543 4 24C4 35.0457 12.9543 44 24 44ZM24 42C33.9411 42 42 33.9411 42 24C42 14.0589 33.9411 6 24 6C14.0589 6 6 14.0589 6 24C6 33.9411 14.0589 42 24 42Z" fill="black"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );