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="M10 12L10 6L11 6" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M10 12L11 12L11 6" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M10 18L10 15L11 15" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M11 15L11 18H10" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M7 6L7 12" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M7 15L7 18" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M14 6L14 12" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M14 15L14 18" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M17 6L17 12" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M17 15L17 18" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M6 3H3V6" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M2 12H12L22 12" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M18 3H21V6" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M6 21H3V18" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
<path d="M18 21H21V18" stroke="currentColor"   stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );