选择单元格时，UITableViewCell子视图消失(UITableViewCell subview disappears when cell is selected)

 我正在实现一个颜色选择器表视图，用户可以在其中选择10种颜色（取决于产品）。 用户还可以选择其他选项（如硬盘容量，...）。 
 
 所有颜色选项都在自己的tableview部分内。 
 
 我想在textLabel的左侧显示一个方块，显示实际的颜色。 
 
 现在我添加一个简单的方块UIView，给它正确的背景颜色，像这样： 
 
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:RMProductAttributesCellID];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:RMProductAttributesCellID] autorelease];
        cell.indentationWidth = 44 - 8;

        UIView *colorThumb = [[[UIView alloc] initWithFrame:CGRectMake(8, 8, 28, 28)] autorelease];
        colorThumb.tag = RMProductAttributesCellColorThumbTag;
        colorThumb.hidden = YES;
        [cell.contentView addSubview:colorThumb];
    }

    RMProductAttribute *attr = (RMProductAttribute *)[_product.attributes objectAtIndex:indexPath.section];
    RMProductAttributeValue *value = (RMProductAttributeValue *)[attr.values objectAtIndex:indexPath.row];
    cell.textLabel.text = value.name;
    cell.textLabel.backgroundColor = [UIColor clearColor];

    UIView *colorThumb = [cell viewWithTag:RMProductAttributesCellColorThumbTag];
    colorThumb.hidden = !attr.isColor;
    cell.indentationLevel = (attr.isColor ? 1 : 0);

    if (attr.isColor) {
        colorThumb.layer.cornerRadius = 6.0;
        colorThumb.backgroundColor = value.color;
    }

    [self updateCell:cell atIndexPath:indexPath];

    return cell;
}
 
 这显示正常没有问题。 
 
 我唯一的问题是，当我选择一个“颜色”行，在淡入淡出的选择动画中，我的自定义UIView（colorThumb）被隐藏。 在选择/取消选择动画结束之后，它再次可见，但这会产生一个丑陋的神器。 
 
 我该怎么做来纠正这个问题？ 不要在正确的地方插入子视图？ 
 
 （didSelectRowAtIndexPath中没有什么特别的，我只是将单元格的附件更改为复选框或者没有，并取消选择当前的indexPath）。 

I'm implementing a color-chooser table view where the user can select amongst, say, 10 colors (depends on the product). The user can also select other options (like hard drive capacity, ...).
 
All color options are inside their own tableview section.
 
I want to display a little square on the left of the textLabel showing the actual color.
 
Right now I'm adding a simple square UIView, give it the correct background color, like this :
 
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:RMProductAttributesCellID];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:RMProductAttributesCellID] autorelease];
        cell.indentationWidth = 44 - 8;

        UIView *colorThumb = [[[UIView alloc] initWithFrame:CGRectMake(8, 8, 28, 28)] autorelease];
        colorThumb.tag = RMProductAttributesCellColorThumbTag;
        colorThumb.hidden = YES;
        [cell.contentView addSubview:colorThumb];
    }

    RMProductAttribute *attr = (RMProductAttribute *)[_product.attributes objectAtIndex:indexPath.section];
    RMProductAttributeValue *value = (RMProductAttributeValue *)[attr.values objectAtIndex:indexPath.row];
    cell.textLabel.text = value.name;
    cell.textLabel.backgroundColor = [UIColor clearColor];

    UIView *colorThumb = [cell viewWithTag:RMProductAttributesCellColorThumbTag];
    colorThumb.hidden = !attr.isColor;
    cell.indentationLevel = (attr.isColor ? 1 : 0);

    if (attr.isColor) {
        colorThumb.layer.cornerRadius = 6.0;
        colorThumb.backgroundColor = value.color;
    }

    [self updateCell:cell atIndexPath:indexPath];

    return cell;
}
 
This displays fine without problems.
 
My only problem is that when I select a "color" row, during the fade-to-blue selection animation, my custom UIView (colorThumb) is hidden. It gets visible again just after the selection/deselection animation ended, but this produces an ugly artifact.
 
What should I do to correct this? Don't I insert the subview at the right place?
 
(There's nothing special in the didSelectRowAtIndexPath, I just change the cell's accessory to a checkbox or nothing, and deselect the current indexPath).

原文：https://stackoverflow.com/questions/6745919