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" stroke-width="1.5" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M17.7083 17C19.1334 15.4077 20 13.3051 20 11C20 6.02944 15.9706 2 11 2C6.02944 2 2 6.02944 2 11C2 15.9706 6.02944 20 11 20C13.6655 20 16.0604 18.8412 17.7083 17ZM17.7083 17H19.5C20.8807 17 22 18.1193 22 19.5V19.5C22 20.8807 20.8807 22 19.5 22H17" stroke="currentColor" stroke-linecap="round"/>
<path d="M11 11.01L11.01 10.9989" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M8 11.01L8.01 10.9989" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M14 11.01L14.01 10.9989" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );