Ios 检查按钮是否已在Objective-C中收到触摸

我想知道我是否在这段代码中做错了什么：

- (void)checkButtonTapped:(id)sender event:(id)event
{
    NSSet *touches = [event allTouches];
    UITouch *touch = [touches anyObject];
    CGPoint currentTouchPosition = [touch locationInView:tableView];
    NSLog(@"Current: ", currentTouchPosition);
    NSIndexPath *indexPath = [tableView indexPathForRowAtPoint: currentTouchPosition];
    NSLog(@"Index Path: ", indexPath);
    if (indexPath != nil)
    {
        [self tableView: tableView accessoryButtonTappedForRowWithIndexPath: indexPath];
    }
}

indexPath和currentTouchPosition为空

我在这里调用方法：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *sectionTitle = [artistSectionTitles objectAtIndex:indexPath.section];
    NSMutableDictionary *sectionArtists = [artists objectForKey:sectionTitle];
    NSString *title = [sectionArtists objectForKey: [NSString stringWithFormat:@"%i", indexPath.row]];
    NSMutableDictionary *artist = [baseController getCurrentItemByTitle: artistsBD :title];

    NSInteger ID = [artist objectForKey: @"1"];
    static NSString *cellIdentifier = @"listArtists";
    CustomCell *cell = (CustomCell *)[tableView dequeueReusableCellWithIdentifier:cellIdentifier];

    if (cell==nil) {
        cell = [[CustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
    }
    [tableView registerNib:[UINib nibWithNibName:@"CustomCell" bundle:nil] forCellReuseIdentifier:@"listArtists"];

    cell = [tableView dequeueReusableCellWithIdentifier:@"listArtists"];
    cell.lbName.text = [artist objectForKey: @"2"];
    NSInteger *qtdAlbuns = [artistDAO countAlbuns: ID];
    cell.lbDetails.text = [NSString stringWithFormat:@"%i álbuns", qtdAlbuns];
    cell.icon.image = [UIImage imageNamed: @"icones-categorias-artista"];
    cell.imagePricipal.image = [artistDAO getThumb: ID];

    UIImage *image = [UIImage   imageNamed:@"icon-up"];

    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(0.0, 0.0, image.size.width, image.size.height);
    [button setBackgroundImage:image forState:UIControlStateNormal];

    [button addTarget:self action:@selector(checkButtonTapped:event:)  forControlEvents:UIControlEventTouchUpInside];
    button.backgroundColor = [UIColor clearColor];
    cell.accessoryView = button;

    //cell.accessoryView = [[UIImageView alloc ] initWithImage:[UIImage imageNamed:@"icon-up"]];

    [self setImageCornerRadius : cell];

    cell.tag = ID;
    return cell;
}

按钮的img：

---

当我点击按钮到currentTouchPosition并且indexPath为空时，我想知道我是否在代码中做了什么错误。

实现所需的一个更简单的方法是将UIButton与块一起使用，如explained

这样，您就不需要checkButtonTapped:方法，只需执行以下操作即可代替[button addTarget…]：

[button handleControlEvent:UIControlEventTouchUpInside
             withBlock:^{
    [self tableView:tableView accessoryButtonTappedForRowWithIndexPath: indexPath];
}];

---

尝试从按钮向上移动视图层次结构：

static UITableViewCell *cellAncestorOfView(UIView *view) {
    while (YES) {
        if (view == nil || [view isKindOfClass:[UITableViewCell class]]) {
            return view;
        }
        view = view.superview;
    }
}

- (void)checkButtonTapped:(UIButton *)sender event:(UIEvent *)event {
    UITableViewCell *cell = cellAncestorOfView(sender);
    if (cell != nil) {
        NSIndexPath *indexPath = [tableView indexPathForCell:cell];
        if (indexPath != nil) {
            [self tableView:tableView accessoryButtonTappedForRowWithIndexPath:indexPath];
        }
    }
}

---

你到底在干什么？您需要每个tableview单元格都有相同的按钮&该按钮的效果相同吗？单击该按钮将展开艺术家的相册，明白吗*很抱歉我的英语不好，我建议你创建自己的UITableViewCell类。然后在自定义单元格类中，您可以创建按钮。当点击特定单元格视图中的特定按钮时，您可以调用自定义UITableViewCell类到视图控制器的委托。解决了，我选择了错误的UITableView。谢谢大家