Question

我使用多个循环在3个级别创建子菜单，方法是将UIGestureRecognizer分配给UILabel。我得到一些非常奇怪的行为;在任何情况下，事件仅针对菜单的前三个元素抛出。无论他们是2级，3级还是两者。我尝试使用UIButton而不是UILabel，我得到完全相同的行为。

将UILabel添加到UIView内的某些UIScrollView。

以下是代码：

    for(NSDictionary* sub in [category objectForKey:@"sub"]) {
    // First level
    if([sub valueForKey:@"sub"]) {
        // Second level
        for(NSDictionary* sub2 in [sub objectForKey:@"sub"]) {                
            // Third level (links)
            for(NSDictionary __strong *video in [sub2 objectForKey:@"video"]) {
                // Label handler tap
                labelCat.tag = i;
                labelCat.userInteractionEnabled = YES;
                [videos insertObject:[[video objectForKey:@"src"] objectForKey:@"text"] atIndex:i]; i++;
                singleFingertap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showVideo:)];
                [labelCat addGestureRecognizer:singleFingertap];
                [view3 addSubview:labelCat];
            }
        }
    } else {
        // Label handler tap
        labelCat.tag = i;
        [videos insertObject:[[video objectForKey:@"src"] objectForKey:@"text"] atIndex:i]; i++;
        singleFingertap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showVideo:)];
        labelCat setUserInteractionEnabled:YES];
        [labelCat addGestureRecognizer:singleFingertap];
    }
}

对于动作处理程序：

- (void)showVideo:(UITapGestureRecognizer *)sender
{
    NSLog(@"test");
}

你知道这里发生了什么吗？感谢

UITapGestureRecognizer仅适用于循环的前三个元素

0 个答案: