/** 在C頁面的DisMiss方法里面添加一下代碼(iOS6.0+) */  if ([self respondsToSelector:@selector(presentingViewController)]){    [self.presentingViewController.presentingViewController dismissViewControllerAnimated:YES completion:nil];  }  else {    [self.parentViewController.parentViewController dismissViewControllerAnimated:YES completion:nil];  }

/** 這里用到的核心處理辦法是 *//** 1.在A控制器模態Model推出B控制器的時候先給B控制器包裝一個導航控制器 */UINavigationController *ANavigationController = [[UINavigationController alloc] initWithRootViewController:[[BViewController alloc] init]];[self presentViewController:ANavigationController animated:YES completion:nil];/** 2.在B控制器遵守UINavigationControllerDelegate實現代理協議,隱藏當前控制器的導航欄 */#pragma mark - UINavigationControllerDelegate- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated {  // 判斷要顯示的控制器是否是自身控制器  BOOL isShowMyController = [viewController isKindOfClass:[self class]];  [self.navigationController setNavigationBarHidden:isShowMyController animated:YES];}#pragma mark - Push出C控制器[self.navigationController pushViewController:[[CViewController alloc] init] animated:YES];/** 3.在C控制器里面可直接在返回按鈕方法里DisMiss */[self.navigationController dismissViewControllerAnimated:YES completion:nil];