didPop method

@override void didPop(Route route, Route? previousRoute)

The Navigator popped route.

The route immediately below that one, and thus the newly active route, is previousRoute.

Implementation

@override
void didPop(Route<dynamic> route, Route<dynamic>? previousRoute) {
  super.didPop(route, previousRoute);
  // Popping a page reveals the one beneath it. A dialog/sheet dismiss leaves
  // the same page on top, so only react when an actual page was popped.
  if (route is PageRoute) _trackVisible(previousRoute);
}