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" stroke-width="1.5" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M4.40434 13.6099C3.51517 13.1448 3 12.5924 3 12C3 10.3431 7.02944 9 12 9C16.9706 9 21 10.3431 21 12C21 12.7144 20.2508 13.3705 19 13.8858" stroke="currentColor"  stroke-linecap="round" stroke-linejoin="round"/>
<path d="M12 11.01L12.01 10.9989" stroke="currentColor"  stroke-linecap="round" stroke-linejoin="round"/>
<path d="M16.8827 6C16.878 4.97702 16.6199 4.25309 16.0856 3.98084C14.6093 3.22864 11.5832 6.20912 9.32664 10.6379C7.07005 15.0667 6.43747 19.2668 7.91374 20.019C8.44117 20.2877 9.16642 20.08 9.98372 19.5" stroke="currentColor"  stroke-linecap="round" stroke-linejoin="round"/>
<path d="M9.60092 4.25164C8.94056 3.86579 8.35719 3.75489 7.91369 3.98086C6.43742 4.73306 7.06999 8.93309 9.32658 13.3619C11.5832 17.7907 14.6092 20.7712 16.0855 20.019C17.3977 19.3504 17.0438 15.9577 15.3641 12.1016" stroke="currentColor"  stroke-linecap="round" stroke-linejoin="round"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );