UITableViewCell如何检测用户向左或向右滑动？

Question

我正在使用SWTableViewCell，我想知道当用户向左或向右滑动时触发的操作。

Answer 1

你必须在你的cellForRowAtIndexPath

中添加Gesture Recognizer

 UISwipeGestureRecognizer* swRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(cellSwipedRight:)];
[swRight setDirection:UISwipeGestureRecognizerDirectionRight];
[cell addGestureRecognizer:swRight];

UISwipeGestureRecognizer* swLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(cellSwipedLeft:)];
[swLeft setDirection:UISwipeGestureRecognizerDirectionLeft];
[cell addGestureRecognizer:swLeft];

然后是它的选择器方法

-(void)cellSwipedRight:(UIGestureRecognizer *)gestureRecognizer
{
    if (gestureRecognizer.state == UIGestureRecognizerStateEnded) {
        // your code
    }
}

-(void)cellSwipedLeft:(UIGestureRecognizer *)gestureRecognizer
{
    if (gestureRecognizer.state == UIGestureRecognizerStateEnded) {
        // your code
    }
}

Answer 2

试试这段代码它会对你有用：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }

    UISwipeGestureRecognizer* swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(cellSwiped:)];
    [swipe setDirection:UISwipeGestureRecognizerDirectionRight];
    [cell addGestureRecognizer:swipe];

    cell.textLabel.text = [NSString stringWithFormat:@"Cell %d", indexPath.row];


return cell;
    }


    - (void)cellSwiped:(UIGestureRecognizer *)gestureRecognizer 
    {
        if (gestureRecognizer.state == UIGestureRecognizerStateEnded) 
        {
            UITableViewCell *cell = (UITableViewCell *)gestureRecognizer.view;
            NSIndexPath* indexPath = [self.tableView indexPathForCell:cell];
            //..
        }
    }