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="M5 3C5.55228 3 6 2.55228 6 2C6 1.44772 5.55228 1 5 1C4.44772 1 4 1.44772 4 2C4 2.55228 4.44772 3 5 3Z" fill="currentColor" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M5 22H13" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M5 22L5 2" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M5 23C5.55228 23 6 22.5523 6 22C6 21.4477 5.55228 21 5 21C4.44772 21 4 21.4477 4 22C4 22.5523 4.44772 23 5 23Z" fill="currentColor" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M8 4.19329C9.3696 2.8209 11.1081 2 13 2C17.4183 2 21 6.47715 21 12C21 15.2712 19.7435 18.1755 17.8008 20" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-dasharray="3 3"/>
<path d="M8.19917 20C7.76265 19.59 7.36077 19.1255 7 18.6146" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M13 23C13.5523 23 14 22.5523 14 22C14 21.4477 13.5523 21 13 21C12.4477 21 12 21.4477 12 22C12 22.5523 12.4477 23 13 23Z" fill="currentColor" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );