ios_回到指定页，可传值

HomeViewController *homeVC = [[HomeViewController alloc] init];

    for (int i = 0; i < self.navigationController.viewControllers.count; i++) {

        if ([self.navigationController.viewControllers[i] isKindOfClass:[homeVC class]]) {

             homeVC = [self.navigationController.viewControllers objectAtIndex:i];

             homeVC.videoUrl=self.videoUrl;

        }

    }

    [self.navigationController popToViewController:homeVC animated:YES]; //跳转