prepare method

@override FutureOr<void> prepare()

Called once the component tree is built, before any adapter is applied.

Adapters added while preparing are prepared and applied as well.

Implementation

@override
FutureOr<void> prepare() {
  final parent = element.parentRenderObjectElement!.renderObject as MarkupRenderObject;
  _group = parent.children.wrapElement(element, priority);
  prepareBoundary(_group);
}