findAncestorWidgetOfExactType<T extends Widget> method

@override T? findAncestorWidgetOfExactType<T extends Widget>()

Returns the nearest ancestor widget of the given type T, which must be the type of a concrete Widget subclass.

Implementation

@override
T? findAncestorWidgetOfExactType<T extends Widget>() {
  RenderElement? ancestor = _parent;

  var matchType = '$T';

  while (null != ancestor && ancestor.widgetRuntimeType != matchType) {
    ancestor = ancestor._parent;
  }

  return ancestor?.widget as T?;
}