restoreContext method
Apply the context for next page layout. Called before layout to prepare for next page
Implementation
@override
void restoreContext(WrapContext context) {
  _context.apply(context);
  _context.firstChild = context.lastChild;
}Apply the context for next page layout. Called before layout to prepare for next page
@override
void restoreContext(WrapContext context) {
  _context.apply(context);
  _context.firstChild = context.lastChild;
}