UITableView 分组隐藏部分分隔符

Question

I know this question has been asked before. But no person on the internet had a working and sufficient answer.

EDIT Obviously people don't read questions anymore, on SO. So I'm trying to clarify: I want to remove the SEPARATOR. The separator is neither the space above the section, nor the tableViewHeader or tableViewFooterView. It is only the thin line above (fully from left to right).

I have a grouped UITableView (I don't want to use a plain styled for many other reasons, take it as it is) which has multiple groups.

The first section should not have the separator line on top. Setting the separator style of the tableView is not an option, because I do need the other separators.

Setting the tableViews tableFooterView is something I often read, but it never worked.

I used the tableView with static content before and I was able to remove the separator in -[UITableViewController viewDidLoad] using this:

- (void)viewDidLoad {
    [[[self headerTableCell] valueForKey:@"_topSeparatorView"] removeFromSuperView];
}

Since I now had to change the tableView to a dynamic one, the IBOutlet property won't work anymore (obviously).

So I tried everything, -[id tableView:willDisplayCell:atIndexPath:] , -[UITableViewCell initWithStyle:reuseIdentifier: , prepareForReuse , awakeFromNib] and some others.

In any case, this separator is nil. So I need a method that gets called when the complete view hierarchy of the cell is setup.

Answer 1

我从你的情况中得到的你有一个分组的 UITableView 你想要第一部分没有分隔符并且你想在其他部分保留分隔符所以从属性检查器中删除整个 tableview的分隔符make Separator : None在故事板中创建自定义 UITableviewCell对于其他部分，并在其末尾添加View ，高度为 1，宽度为整个屏幕（如默认分隔符），这可能不是最好的主意，但这将允许您拥有没有分隔符的第一部分

Answer 2

I faced a similar problem, wanted to remove the last line of the section in grouped table view, I am calling following method in view will appear and on every table reload. This is not the exact answer but problem can be solved by just changing y value of dummy view.

+(void)removeLastSectionSeparatorForTableView:(UITableView *)tableView
{
    UIView *oldSeparatorView = [tableView viewWithTag:kTagDummySectionSeparator];

    if (oldSeparatorView != nil)
    {
        [oldSeparatorView removeFromSuperview];
    }

    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.2 * NSEC_PER_SEC)), dispatch_get_main_queue(),
                   ^{

                       UIView *view = [[UIView alloc] init];
                       view.tag = kTagDummySectionSeparator;
                       view.backgroundColor = [UIColor colorWithRed:239.0/255 green:239.0/255 blue:244.0/255 alpha:1.0];//Group table background color
                       view.frame = CGRectMake(0,
                                               tableView.contentSize.height-40,
                                               tableView.bounds.size.width,
                                               2);
                       [tableView addSubview:view];
                   });
}

Answer 3

Maybe this problem is the same as mine before. Finally, my way to solve this problem: set table view delegate 's method (CGFloat)tableView:(UITableView *)tableView heightForHeaderAtSection:(NSInteger)section , then return CGFLOAT_MIN;

Answer 4

add this override function in your Custom Cell Class

   override func layoutSubviews() {
    super.layoutSubviews()
    for subview in subviews where (subview != contentView && abs(subview.frame.width - frame.width) <= 0.1 && subview.frame.height < 2) {
        subview.removeFromSuperview()
    }
 }