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" stroke-width="1.5" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M22 13V12C22 6.47715 17.5228 2 12 2C6.47715 2 2 6.47715 2 12C2 14.2514 2.74446 16.3286 4 18" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M13 2.04883C13 2.04883 16 5.99945 16 11.9994V12.9995" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M11 2.04883C11 2.04883 8 5.99945 8 11.9994V12.9995" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M2.62988 15.5H4" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M2.62988 8.5H21.3706" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M7 22V16H8C9.10457 16 10 16.8954 10 18V20C10 21.1046 9.10457 22 8 22H7Z" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M13 22L13 16L16 22V16" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M19 22H21C21.8284 22 22.5 21.3284 22.5 20.5V20.5C22.5 19.6716 21.8284 19 21 19H20.5C19.6716 19 19 18.3284 19 17.5V17.5C19 16.6716 19.6716 16 20.5 16H22" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );