didUnmountRenderObject method

  1. @override
void didUnmountRenderObject (covariant RenderClipOval renderObject)
override

A render object previously associated with this widget has been removed from the tree. The given RenderObject will be of the same type as returned by this object's createRenderObject.

Implementation 

@override
void didUnmountRenderObject(RenderClipOval renderObject) {
  renderObject.clipper = null;
}