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="M5.81249 7C5.81249 7 5.35861 7.62759 4.81552 8.66667M18.1875 7C18.1875 7 18.6414 7.62759 19.1845 8.66667M4.81552 8.66667C4.0067 10.2142 3 12.6743 3 15.3333C5.8125 15.3333 7.49999 17 7.49999 17C7.49999 17 8.62499 22 12 22C15.375 22 16.5 17 16.5 17C16.5 17 18.1875 15.3333 21 15.3333C21 12.6743 19.9933 10.2142 19.1845 8.66667M4.81552 8.66667C4.81552 8.66667 1.875 6.44436 4.81552 2C5.81249 2.55556 8.625 4.77778 8.625 4.77778C8.625 4.77778 10.3125 3.66667 12 3.66667C13.6875 3.66667 15.375 4.77778 15.375 4.77778C15.375 4.77778 18.1875 2.55556 19.3125 2C22.125 6.44456 19.1845 8.66667 19.1845 8.66667" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M11 18L12 18M13 18L12 18M12 18L12 19" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M8.5 12.5L10 14" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M15.5 12.5L14 14" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );