iOS UILable的分类

在做项目的时候我们会经常遇到label的中划线/下划线/修改行行间距/修改字间距的问题
/// 中划线
/// @param text 字符
/// @param color 颜色
-(void)setMiddlelineStyleSingle:(NSString *)text color:(UIColor *)color{
//添加中划线
if (!LMStringIsEmpty(text))
{
NSDictionary * centerAttribtDic = @{NSStrikethroughStyleAttributeName:[NSNumber numberWithInteger:NSUnderlineStyleSingle],NSForegroundColorAttributeName:color};
NSMutableAttributedString * centerAttr = [[NSMutableAttributedString alloc] initWithString:text attributes:centerAttribtDic];
self.attributedText = centerAttr;
}
}
/// 下划线
/// @param text 字符
/// @param color 颜色
-(void)setUnderlineStyleSingle:(NSString )text color:(UIColor )color {
//添加下划线
if (!LMStringIsEmpty(text))
{
NSDictionary * underAttribtDic = @{NSUnderlineStyleAttributeName:[NSNumber numberWithInteger:NSUnderlineStyleSingle],NSForegroundColorAttributeName:color};
NSMutableAttributedString * underAttr = [[NSMutableAttributedString alloc] initWithString:text attributes:underAttribtDic];
self.attributedText = underAttr;
}
}
/

• 改变行间距
  */

• (void)changeLineSpaceForLabel:(UILabel *)label WithSpace:(float)space {
  NSString *labelText = label.text;
  if (labelText){
  NSMutableAttributedString attributedString = [[NSMutableAttributedString alloc] initWithString:labelText];
  NSMutableParagraphStyle paragraphStyle = [[NSMutableParagraphStyle alloc] init];
  [paragraphStyle setLineSpacing:space];
  [attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [labelText length])];
  label.attributedText = attributedString;
  [label sizeToFit];
  }
  }
  /

• 改变字间距
  */

• (void)changeWordSpaceForLabel:(UILabel *)label WithSpace:(float)space {
  NSString *labelText = label.text;
  if (labelText){
  NSMutableAttributedString attributedString = [[NSMutableAttributedString alloc] initWithString:labelText attributes:@{NSKernAttributeName:@(space)}];
  NSMutableParagraphStyle paragraphStyle = [[NSMutableParagraphStyle alloc] init];
  [attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [labelText length])];
  label.attributedText = attributedString;
  [label sizeToFit];
  }
  }
  /

• 改变行间距和字间距
  */

• (void)changeSpaceForLabel:(UILabel *)label withLineSpace:(float)lineSpace WordSpace:(float)wordSpace {
  NSString *labelText = label.text;
  if (labelText) {
  NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:labelText attributes:@{NSKernAttributeName:@(wordSpace)}];
  NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
  [paragraphStyle setLineSpacing:lineSpace];
  [attributedString addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, [labelText length])];
  label.attributedText = attributedString;
  [label sizeToFit];
  }
  }