UITableView上的单元格与自定义UITableViewCell之间的间距 [英] Spacing between cells on UITableView with Custom UITableViewCell

问题描述

我有一个UITableView从XIB文件加载自定义UITableViewCell。一切都工作正常，但我的布局要求细胞（所有内部一个单一部分）之间有间距。
任何机会，这可以做到，而不必提高ROW高度？

I have a UITableView loading a custom UITableViewCell from a XIB file. Everything is working fine, but my layout requires that the cells (all inside one single section) have spacing between them. Any chance this can be done without having to raise the ROW height?

现在是什么

how it is now

如何被推测为

how it's supossed to be

EDIT：

这是今天的代码

this is how the code is today

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return [[self.cards valueForKeyPath:@"cards"] count];
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    [ccTableView setBackgroundColor:[UIColor clearColor]];
    cardsCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cardsCell"];

    if(cell == nil){
      NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:@"cardsCell" owner:self options:nil];
      cell = [topLevelObjects objectAtIndex:0];
    }

    NSString *nmCard = [[self.cards valueForKeyPath:@"cards.name"] objectAtIndex:indexPath.row];
    cell.descCardLabel.text = nmCard;

  return cell;
}

推荐答案

单元格的高度，解决方案是使用不可见的中间
单元格的所需高度。在这种情况下，您需要在表视图委托和数据源中重新计算索引。

If you can't change the cell's height, the solution is to use invisible intermediate cells of the required height. You'll need to recalculate indexes at table view delegate and datasource in that case.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

    static NSString *CELL_ID2 = @"SOME_STUPID_ID2";
    // even rows will be invisible
    if (indexPath.row % 2 == 1)
    {
        UITableViewCell * cell2 = [tableView dequeueReusableCellWithIdentifier:CELL_ID2];

        if (cell2 == nil)
        {
            cell2 = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
                                          reuseIdentifier:CELL_ID2];
            [cell2.contentView setAlpha:0];
            [cell2 setUserInteractionEnabled:NO]; // prevent selection and other stuff
        }
        return cell2;
    }

    [ccTableView setBackgroundColor:[UIColor clearColor]];
    cardsCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cardsCell"];

    if(cell == nil){
      NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:@"cardsCell" owner:self options:nil];
      cell = [topLevelObjects objectAtIndex:0];
    }

     // Use indexPath.row/2 instead of indexPath.row for the visible section to get the correct datasource index (number of rows is increased to add the invisible rows)
        NSString *nmCard = [[self.cards valueForKeyPath:@"cards.name"] objectAtIndex:(indexPath.row/2)];
        cell.descCardLabel.text = nmCard;

      return cell;
    }



- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{

    // two times minus one (invisible at even rows => visibleCount == invisibleCount+1)
    return [[self.cards valueForKeyPath:@"cards"] count] * 2 - 1;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (indexPath.row % 2 == 1)
        return 40;
    return 162;
}

您还需要重新计算indexPath.row ：didSelectRowAtIndexPath：和其他使用它的方法。

You will also need to recalculate the indexPath.row for :didSelectRowAtIndexPath: and other methods where it is used.

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