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="M21.0404 12.2828L21.639 16.4731C21.8226 17.7584 20.752 18.8752 19.4601 18.746L12.199 18.0199C12.0667 18.0067 11.9333 18.0067 11.801 18.0199L4.53989 18.746C3.24801 18.8752 2.17738 17.7584 2.36099 16.4731L2.95959 12.2828C2.98639 12.0952 2.98639 11.9048 2.95959 11.7172L2.36099 7.52691C2.17738 6.24163 3.24801 5.1248 4.5399 5.25399L11.801 5.9801C11.9333 5.99333 12.0667 5.99333 12.199 5.9801L19.4601 5.25399C20.752 5.1248 21.8226 6.24163 21.639 7.5269L21.0404 11.7172C21.0136 11.9048 21.0136 12.0952 21.0404 12.2828Z" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M21 6L17 9" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
<path d="M7 15L3 18" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );