ios - 根据文本行自动计算标签的高度

Question

到目前为止，我一直在进行自定义像元高度的计算。我需要在获取数据后自动调整单元格的大小。
self.countLabel和self.descriptionLabel仅占用一行文本，另一方面，self.detailLabel可能包含多行文本。因此，以下代码是我设置约束的方式。



CustomCell.m

- (void)initView
{
    self.countLabel = [UILabel new];
    self.countLabel.text = @"AAAAAA";
    self.countLabel.font = [UIFont fontWithPixel:22];
    self.countLabel.numberOfLines = 1;
    [self.contentView addSubview:self.countLabel];

    self.detailLabel = [UILabel new];
    self.detailLabel.text = @"Number of people: ";
    self.detailLabel.font = [UIFont fontWithPixel:22];
    self.detailLabel.textColor = [UIColor qu_grayColor];
    [self.contentView addSubview:self.detailLabel];

    self.descriptionLabel = [UILabel new];
    self.descriptionLabel.numberOfLines = 1;
    self.descriptionLabel.text = @"ABCDEFGHIJKLM";
    self.descriptionLabel.font = [UIFont fontWithPixel:26];
    [self.contentView addSubview:self.descriptionLabel];

    [self.countLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.contentView).offset(20);
        make.top.equalTo(self.contentView).offset(5);
        make.right.equalTo(self.contentView).offset(-10);
    }];

    [self.detailLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.contentView).offset(20);
        make.top.equalTo(self.countLabel.mas_bottom);
        make.bottom.equalTo(self.descriptionLabel.mas_top);
        make.right.equalTo(self.contentView).offset(-10);
    }];

    [self.descriptionLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.contentView).offset(10);
        make.right.equalTo(self.contentView).offset(-10);
        make.bottom.equalTo(self.contentView).offset(-15);

    }];
}

Answer 1

self.detailLabel.text = @"Number of peoples: ";
self.detailLabel.font = [UIFont fontWithPixel:22];
...
[self setLabelHeight:self.detailLabel];


- (void)setLabelHeight:(UILabel *)label {
    CGFloat fixedWidth = label.frame.size.width;
    CGSize newSize = [label sizeThatFits:CGSizeMake(fixedWidth, MAXFLOAT)];
    CGRect newFrame = label.frame;
    newFrame.size = CGSizeMake(fmaxf(newSize.width, fixedWidth), newSize.height);
    label.frame = newFrame;
}


- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    //if indexPath.row == detailsLabelRow
    //return self.detailLabel.height
    //else 
    //return 1 line height
}