隐式移除navigationController栈中的指定控制器

1. 遍历查找到目标控制器,执行 removeFromParentViewController 方法

# 注意：会出现navigationBar的title显示错乱问题
for (UIViewController *vc in self.navigationController.viewControllers) {
    if ([vc isKindOfClass:[TargetViewController class]]) {
        [vc removeFromParentViewController];
    }
}

2. 复制 navigationController.viewControllers 为可变数组,遍历 navigationController.viewControllers 查找到目标控制器,从可变数组中移除

NSMutableArray *mutableViewControllers = [NSMutableArray arrayWithArray:self.navigationController.viewControllers];
for (UIViewController *vc in self.navigationController.viewControllers) {
    if ([vc isKindOfClass:[TargetViewController class]]) {
        [mutableViewControllers removeObject:vc];
    }
}
self.navigationController.viewControllers = mutableViewControllers;