在UITableView上添加 swipe手势

最新推荐文章于 2024-07-07 13:49:08 发布

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本文介绍如何使用Swift在UITableView中实现左滑手势识别功能。通过创建UISwipeGestureRecognizer并设置其方向为左侧滑动，然后将其添加到tableView上。当检测到左滑手势时，可以获取滑动手势的位置、对应的indexPath及cell，并更新cell的状态。

UISwipeGestureRecognizer *recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self 
                                                                                  action:@selector(handleSwipeLeft:)];
    [recognizer setDirection:(UISwipeGestureRecognizerDirectionLeft)];
    [self.tableView addGestureRecognizer:recognizer];
    [recognizer release];

- (void)handleSwipeLeft:(UISwipeGestureRecognizer *)gestureRecognizer
{
    //Get location of the swipe
    CGPoint location = [gestureRecognizer locationInView:self.tableView];
 
    //Get the corresponding index path within the table view
    NSIndexPath *indexPath = [self.tableView indexPathForRowAtPoint:location];
 
    //Check if index path is valid
    if(indexPath)
    {
        //Get the cell out of the table view
        UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:indexPath];
 
        //Update the cell or model 
        cell.accessoryType = UITableViewCellAccessoryCheckmark;
    }
}