(iOS) Backwards iteration. Check a property of a previous controller in the navigation hierarchy

iteration.mm

//Example

//Pop views and return to mapresultsviewcontroller
        for(UIViewController *vc in [self.navigationController viewControllers]) {

            //MapAreaRsultsViewController is 2 controllers back in the hierarchy
            if([vc isMemberOfClass:[MapAreaResultsViewController class]]) {

                //Remove record from memory
                NSMutableArray *records;
                if (((MapAreaResultsViewController *)vc).resultsType == HOME_PAGE) {
                    records = [[NSMutableArray alloc] initWithArray:Eng.search.resultsHome];
                } else if (((MapAreaResultsViewController *)vc).resultsType == PROFILE_PAGE) {
                    records = [[NSMutableArray alloc] initWithArray:Eng.search.resultsProfile];
                } else {
                    records = [[NSMutableArray alloc] initWithArray:Eng.search.resultsSearch];
                }
                
                [records removeObject:Eng.details.record];

                [((MapAreaResultsViewController *)vc) reloadViewData];
                [self.navigationController popToViewController:vc animated:YES];
                return;
            }
        }