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 fill-rule="evenodd" clip-rule="evenodd" d="M2.46967 2.46967C2.76256 2.17678 3.23744 2.17678 3.53033 2.46967L21.5303 20.4697C21.8232 20.7626 21.8232 21.2374 21.5303 21.5303C21.2374 21.8232 20.7626 21.8232 20.4697 21.5303L2.46967 3.53033C2.17678 3.23744 2.17678 2.76256 2.46967 2.46967Z" fill="currentColor"/>
<path fill-rule="evenodd" clip-rule="evenodd" d="M8.25 4.38359C8.25 2.65295 9.65295 1.25 11.3836 1.25H12C14.0711 1.25 15.75 2.92893 15.75 5V10.5C15.75 10.791 15.5817 11.0558 15.3181 11.1792C15.0546 11.3026 14.7434 11.2625 14.5199 11.0762L9.37751 6.79088C8.66308 6.19551 8.25 5.31357 8.25 4.38359ZM14 14.75C10.8244 14.75 8.25 12.1756 8.25 9H9.75C9.75 11.3472 11.6528 13.25 14 13.25V14.75Z" fill="currentColor"/>
<path fill-rule="evenodd" clip-rule="evenodd" d="M5 9.25C5.41421 9.25 5.75 9.58579 5.75 10V11C5.75 14.4518 8.54822 17.25 12 17.25C15.4518 17.25 18.25 14.4518 18.25 11V10C18.25 9.58579 18.5858 9.25 19 9.25C19.4142 9.25 19.75 9.58579 19.75 10V11C19.75 15.2802 16.2802 18.75 12 18.75C7.71979 18.75 4.25 15.2802 4.25 11V10C4.25 9.58579 4.58579 9.25 5 9.25Z" fill="currentColor"/>
<path fill-rule="evenodd" clip-rule="evenodd" d="M12 17.25C12.4142 17.25 12.75 17.5858 12.75 18V21.25H15C15.4142 21.25 15.75 21.5858 15.75 22C15.75 22.4142 15.4142 22.75 15 22.75H9C8.58579 22.75 8.25 22.4142 8.25 22C8.25 21.5858 8.58579 21.25 9 21.25H11.25V18C11.25 17.5858 11.5858 17.25 12 17.25Z" fill="currentColor"/>
</svg>
''',
      colorFilter:
          color != null ? widgets.ColorFilter.mode(color!, widgets.BlendMode.srcIn) : null,
      width: width,
      height: height,
    );