如何使用UISwipeGestureRecognizer在UITableViewCell中检测滑动事件

我有一个UITableViewCell类,我想在其中检测滑动事件(删除),以便隐藏在 drawRect

首先,我添加了 UISwipeGestureRecognice 至电池:

// Init swipe gesture recognizer
self.swipeRecognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeCell:)];
self.swipeRecognizer.direction = UISwipeGestureRecognizerDirectionLeft | UISwipeGestureRecognizerDirectionRight;
self.swipeRecognizer.delegate = self;
[self.contentView addGestureRecognizer:self.swipeRecognizer];

然后我实现了一种方法来对滑动事件做出反应:

- (void)swipeCell:(UISwipeGestureRecognizer *)recognizer
{
    switch (recognizer.state) {
        case UIGestureRecognizerStateBegan:
            self.swipeStartPoint = [recognizer locationInView:self.backgroundView];
            BaseLogDebug(INFO, @"Swipe Began at %@", NSStringFromCGPoint(self.swipeStartPoint));
            break;
        case UIGestureRecognizerStateChanged: {
            CGPoint currentPoint = [recognizer locationInView:self.backgroundView];
            CGFloat deltaX = currentPoint.x - self.swipeStartPoint.x;
            BaseLogDebug(INFO, @"Swipe Moved %f", deltaX);
        }
            break;
        case UIGestureRecognizerStateEnded:
            BaseLogDebug(INFO, @"Swipe Ended");
            break;
        case UIGestureRecognizerStateCancelled:
            BaseLogDebug(INFO, @"Swipe Cancelled");
            break;
        default:
            break;
    }
}

为了允许同时进行手势识别,我实现了以下方法:

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer
 shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
    return YES;
}

手势识别的唯一状态是 UIGestureRecognizerStateEnded 。我的代码有什么问题?