popRoute method

@override Future<bool> popRoute({ Object? result, PopMode popMode = PopMode.History, })

Router.backButtonDispatcher，系统返回按钮回调 返回 true 表示自己拦截，返回 false 则跟随系统导航返回

Implementation

@override
Future<bool> popRoute({
  Object? result,
  PopMode popMode = PopMode.History,
}) async {
  //Returning false will cause the entire app to be popped.
  print('handle system pop!!!');
  final wasPopup = await handlePopupRoutes(result: result);
  if (wasPopup) {
    print(
        'pop route, use Navigator.push(ModalRoute route), will user Navigator.pop()');
    return true;
  }
  print('pop route, remove top route and notifyListeners');

  ///如果在单独运行的情况下，只剩余一个页面，那么就让系统消费
  if (!_canPop() && !multiple) {
    return false;
  }
  await pop(result);
  return true;
}