Question

我有一个包含3个UILabel的自定义单元格。最后一个标签将包含已嵌入\ n的文本，以便该单元格中的数据每行列出一个项目。我知道所需的行数，我知道每行需要15像素高。我必须更改此标签大小的代码在这里：

//Set up the cell
static NSString *CellIdentifier = @"Cell";
CustomHistoryCell *cell = (CustomHistoryCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[CustomHistoryCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
}
cell.probeInfo.lineBreakMode = UILineBreakModeWordWrap;
cell.probeInfo.numberOfLines = 0;
cell.probeInfo.text = theProbes;
[cell.probeInfo setAdjustsFontSizeToFitWidth:YES];
CGRect newFrame = cell.probeInfo.frame;
newFrame.size.height = nAdditionalLabelHeight*15;
cell.probeInfo.frame = newFrame;

theProbes包含带有\ n的文本和nAdditionalLabelHeight包含的行数。我已经将背景颜色设置为灰色，以便我可以看到标签是否正确尺寸并且它不会改变它的高度。谁能看到我做错了什么？

以下是自定义单元格.h文件的代码，以防可能有用：

@interface CustomHistoryCell : UITableViewCell {
    UILabel *_stokerName;
    UILabel *_smokeDateTime;
    UILabel *_probeInfo;

}
@property (nonatomic,retain) UILabel *stokerName;
@property (nonatomic,retain) UILabel *smokeDateTime;
@property (nonatomic,retain) UILabel *probeInfo;

@end

以下是自定义单元格.m文件的代码，如果有帮助的话：

#import "CustomHistoryCell.h"


@implementation CustomHistoryCell

@synthesize stokerName = _stokerName;
@synthesize smokeDateTime = _smokeDateTime;
@synthesize probeInfo = _probeInfo;

- (id)initWithStyle:(UITableViewCellStyle)style
    reuseIdentifier:(NSString *)reuseIdentifier
{
    if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier])
    {
        // Initialization code
        self.stokerName = [[UILabel alloc]init];
        self.stokerName.textAlignment = UITextAlignmentLeft;
        self.stokerName.font = [UIFont boldSystemFontOfSize:20];
        self.smokeDateTime = [[UILabel alloc]init];
        self.smokeDateTime.textAlignment = UITextAlignmentLeft;
        self.smokeDateTime.font = [UIFont systemFontOfSize:12];
        self.probeInfo = [[UILabel alloc]init];
        self.probeInfo.textAlignment = UITextAlignmentLeft;
        self.probeInfo.font = [UIFont systemFontOfSize:12];
        self.probeInfo.backgroundColor = [UIColor grayColor];
        [self.contentView addSubview:self.stokerName];
        [self.contentView addSubview:self.smokeDateTime];
        [self.contentView addSubview:self.probeInfo];
    }


    return self;
}

- (void)layoutSubviews {
    [super layoutSubviews];
    CGRect contentRect = self.contentView.bounds;
    CGFloat boundsX = contentRect.origin.x;
    CGRect frame;
    frame= CGRectMake(boundsX+5,5, 300, 25);
    self.stokerName.frame = frame;
    frame= CGRectMake(boundsX+5,30, 300, 15);
    self.smokeDateTime.frame = frame;
    frame= CGRectMake(boundsX+5,45, 300, 15);
    self.probeInfo.frame = frame;
}

- (void)dealloc
{
    [super dealloc];
}

@end

Answer 1

我找到了解决这个问题的方法。我基本上覆盖了initWithStyle并传入了nAdditionalLabelHeight变量，然后用它来设置标签的高度。

自定义单元格中的UILabel不会动态增加高度

1 个答案: