如何获取UITableViewCell的contentView宽度？

Question

我需要在UITableViewStyleGrouped表中创建自定义单元格.如果在没有截断的情况下显示textLabel和detailTextLabel,则必须看起来像UITableViewCellStyleValue1;如果在Value1样式中标签之一,则必须看作UITableViewCellStyleSubtitle(但是带有detailTextLabel width = contentView.frame.size.width和UITextAlignmentRight)被截断.

我需要在方法中知道cell.contentView的宽度,- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath以确定单元格的高度.我比较了cell.contentView.width和标签宽度之和(我得到它们使用方法sizeThatFits:)来决定它.

那么,如何在创建单元格之前获得正确的cell.contentView.frame.size.width？

UPD:一些代码来澄清问题.

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath 
{
    CGFloat cellHeight = 44;

    CGSize textSize = [[arrayOfTextData objectAtIndex:indexPath.row] 
                           sizeWithFont:[UIFont systemFontOfSize:14]
                           constrainedToSize:CGSizeMake( 1000, 100)
                           lineBreakMode:UILineBreakModeCharacterWrap];
    CGSize detailedTextSize = [[arrayOfDetailTextData objectAtIndex:indexPath.row] 
                                    sizeWithFont:[UIFont systemFontOfSize:14]
                                    constrainedToSize:CGSizeMake(1000, 100) 
                                    lineBreakMode:UILineBreakModeCharacterWrap];
    if (textSize.width + detailedTextSize.width > /* I need here cell.contentView.frame.size.width*/  300) {
         cellHeight = textSize.height + detailedTextSize.height;
    }
    return cellHeight;
}

UPD2:问题是,当我创建单元格时,cell.contentView.frame.size.width等于cell.frame.size.width并且等于320,但是在单元格出现后,cell.contentView.frame.size.width会依赖于tableView而发生变化width和tableView样式.

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *CellIdentifier = @"tmpCell";
    CustomTableViewCellValue1OrSubtitle *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[CustomTableViewCellValue1OrSubtitle alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier] autorelease];     
    } 
    //--Configure the cell
        cell.textLabel.text = [arrayOfTextData objectAtIndex:indexPath];
        cell.detailTextLabel.text = [arrayOfDetailTextData objectAtIndex:indexPath.row];

    [cell layoutIfNeeded];

    CGSize textSize = [cell.textLabel.text sizeWithFont:cell.textLabel.font constrainedToSize:CGSizeMake(cell.contentView.bounds.size.width, 99999) lineBreakMode:cell.textLabel.lineBreakMode];
    CGSize detailedTextSize = [cell.detailTextLabel.text sizeWithFont:cell.textLabel.font constrainedToSize:CGSizeMake(cell.contentView.bounds.size.width, 99999) lineBreakMode:cell.textLabel.lineBreakMode];
    CGFloat cellHeight = cell.contentView.frame.size.height;

    NSLog(@"contentView.frame.size.width = %f",cell.contentView.frame.size.width);
    //out: contentView.frame.size.width = 320.0
    //Always print 320, even if I set Simulator on iPad

    if (textSize.width + detailedTextSize.width > cell.contentView.frame.size.width) {
        cellHeight = textSize.height + detailedTextSize.height;
    }
    return cellHeight;
}

Answer 1

-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{

     if (indexPath.section == 0) 
         return 60.0f;
    else
        return 50.0f;

}

通过应用它，您可以设置单元格 - > contentView。如果您需要动态单元格宽度，请使用上述方法中的标志