iOS在一次按下时检测两个方向的UISwipeGestureRecognizer

Question

我正在尝试检测两个手指轻扫触摸并使用它像Mac中的触摸板（两个手指向上和两个手指向下听）和代码类似;

UISwipeGestureRecognizer *swipeUpTwoFinger = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeTwoFinger:)];
swipeUpTwoFinger.numberOfTouchesRequired = 2;
swipeUpTwoFinger.direction = UISwipeGestureRecognizerDirectionUp;
[self.view addGestureRecognizer:swipeUpTwoFinger];

UISwipeGestureRecognizer *swipeDownTwoFinger = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeTwoFinger:)];
swipeDownTwoFinger.numberOfTouchesRequired = 2;
swipeDownTwoFinger.direction = UISwipeGestureRecognizerDirectionDown;
[self.view addGestureRecognizer:swipeDownTwoFinger];


-(void)handleSwipeTwoFinger:(UISwipeGestureRecognizer *)swipeGestureRecognizer
{
    if (swipeGestureRecognizer.direction == UISwipeGestureRecognizerDirectionUp) {
        NSLog(@"handleSwipeUpTwoFinger");
    }
    else if (swipeGestureRecognizer.direction == UISwipeGestureRecognizerDirectionDown) {
        NSLog(@"handleSwipeDownTwoFinger");
    }
}

问题是

触摸时我可以进行向上或向下滑动，但只需按一下即可进行向上滑动。

我想要的就像Mac中的触摸板一样，当我向上轻扫它时，如果没有让电路板向下滑动它也可以听取它。

问题

我怎么能用UISwipeGestureRecognizer做到这一点？ 或者它有限制不能做我想要的UIPanGestureRecognizer或听自己的各种触摸事件做逻辑吗？或任何其他实施？任何演示？

任何建议将不胜感激：）