UILabletext去掉乱码 控制颜色 行高 自定义大小 。显示不同的字体颜色、字体大小、行间距、首行缩进、下划线等属性（NSMutableAttributedString）
text去掉乱码 设置不同颜色 行高 自定义大小
#import <Foundation/Foundation.h> @interface TextsForRow : NSObject @property(nonatomic,copy)NSString * string; /** 文本包含了 标题+文本。 使用前设置内容的颜色 操作中：标题设置颜色。文本颜色 标题+文本字体大小 行间距 以及返回高度 @param stringTitle title文本 @param colorTitle title颜色 @param stringText 内容text @return 返回数组3个。 1 返回的 NSMutableAttributedString * strAttebute；；2返回的 宽度0.2f的string，使用时转化 3:高度 */ +(NSArray *)TextsForRowWithStringTitle:(NSString*)stringTitle ColorWith:(UIColor*)colorTitle textWithStringText:(NSString*)stringText; @end
#import "TextsForRow.h" @implementation TextsForRow +(NSArray *)TextsForRowWithStringTitle:(NSString*)stringTitle ColorWith:(UIColor*)colorTitle textWithStringText:(NSString*)stringText{ //title+text NSString * str1 =[NSString stringWithFormat:@"%@%@",stringTitle,stringText]; //删除不需要的个别字符 NSString * str = [str1 stringByReplacingOccurrencesOfString:@"<DIV>" withString:@""]; str = [str stringByReplacingOccurrencesOfString:@"</DIV>" withString:@""]; str = [str stringByReplacingOccurrencesOfString:@"<BR>" withString:@""]; str = [str stringByReplacingOccurrencesOfString:@"</BR>" withString:@""]; //删除讨厌的字符 NSRegularExpression * regu2 =[NSRegularExpression regularExpressionWithPattern:@"(?:<|</|>| )" options:NSRegularExpressionCaseInsensitive error:nil]; NSString *string3 = [regu2 stringByReplacingMatchesInString:str options:NSMatchingReportProgress range:NSMakeRange(0, str.length) withTemplate:@""]; //去掉左右两边的空格 NSString * kongge = [string3 stringByReplacingOccurrencesOfString:@" " withString:@""]; //去掉左右两边的空格 NSString * string = [kongge stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]]; NSMutableAttributedString * strAttebute = [[NSMutableAttributedString alloc] initWithString:string ]; //设置title颜色 [strAttebute addAttribute:NSForegroundColorAttributeName value:colorTitle range:NSMakeRange(0, stringTitle.length)] ; //行间距 NSMutableParagraphStyle * paragraphStyle = [[NSMutableParagraphStyle alloc]init]; [paragraphStyle setLineSpacing:IPHONEHIGHT(10)]; [strAttebute addAttribute:NSParagraphStyleAttributeName value:paragraphStyle range:NSMakeRange(0, string.length)]; //自定义大小 CGSize contentSize = [string boundingRectWithSize:CGSizeMake(ScreenWidth-IPHONEWIDTH(56),MAXFLOAT ) options:NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:IPHONEWIDTH(30)]} context:NULL].size; CGFloat height = contentSize.height; //进行返回 NSArray * array =@[strAttebute,[NSString stringWithFormat:@"%0.2f",contentSize.width],[NSString stringWithFormat:@"%0.2f",height]]; return array; } @end
案例1：修改文本字体大小、颜色属性
比如文本展示为姓名和性别，但是我们不能排除姓名会很长，所以此刻的lable宽度我们就不能写死，换句话说lable的宽度根据文本的内容来定
我经常用两种方式解决：
1.前面文章已经涉及：lable自适应http://blog.csdn.net/tuwanli125/article/details/51003798
2.就是使用NSMutableAttributedString属性给infoL设置文本
NSString *infoStr = [NSStringstringWithFormat:@"%@ %@",name,sex];
NSMutableAttributedString *infoAttStr = [[NSMutableAttributedStringalloc] initWithString:infoStr];
NSArray *colorArr =@[[UIColorcolorWithRed:0/255.0green:168/255.0blue:255/255.0alpha:1.0],[UIColorcolorWithRed:153/255.0green:153/255.0blue:153/255.0alpha:1.0]];
－－－－－－－－修改姓名的颜色，字体大小－－－－－－
[infoAttStr addAttribute:NSForegroundColorAttributeNamevalue:colorArr[0]range:NSMakeRange(0,name.length)];
[infoAttStr addAttribute:NSFontAttributeNamevalue:[UIFontsystemFontOfSize:15]range:NSMakeRange(0,name.length)];
－－－－－－－－修改性别的颜色，字体大小－－－－－－
[infoAttStr addAttribute:NSFontAttributeNamevalue:[UIFontsystemFontOfSize:12]range:NSMakeRange(name.length+1,sexStr.length)];
[infoAttStr addAttribute:NSForegroundColorAttributeNamevalue:colorArr[1]range:NSMakeRange(name.length+1,sexStr.length)];
[self.infoL setAttributedText:infoAttStr];
这样一个文本就可以了，简单快捷
案例2：文本行间距
remindLabel.text = @""(一堆文字，此处省略一万字
)
NSMutableAttributedString *attributedString = [[NSMutableAttributedStringalloc]initWithString:remindLabel.text];;
NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStylealloc]init];
[paragraphStyle setLineSpacing:9];
paragraphStyle.maximumLineHeight = 60; //最大的行高
[paragraphStyle setFirstLineHeadIndent:30];//首行缩进
[attributedString addAttribute:NSParagraphStyleAttributeNamevalue:paragraphStylerange:NSMakeRange(0, remindLabel.text.length)];
remindLabel.attributedText = attributedString;
文本行间距 以及自定义高度
NSMutableAttributedString * strAttebute = [[NSMutableAttributedString alloc] initWithString:check1];
//设置行间距
NSMutableParagraphStyle * paragraphStlyle = [[NSMutableParagraphStyle alloc] init];
[paragraphStlyle setLineSpacing:IPHONEHIGHT(10)];
[strAttebute addAttribute:NSParagraphStyleAttributeName value:paragraphStlyle range:NSMakeRange(0, check1.length)];
c2ell.labelText.attributedText = strAttebute;
CGSize contentSize = [c2ell.labelText.text boundingRectWithSize:CGSizeMake(ScreenWidth-IPHONEWIDTH(28*3+140),MAXFLOAT ) options:NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:IPHONEWIDTH(30)],NSParagraphStyleAttributeName:paragraphStlyle} context:NULL].size;
c2ell.labelText.size =CGSizeMake(contentSize.width, contentSize.height);
案例3：添加下划线
我给按钮添加下滑线，比如按钮显示文本为电话号码，点击就可以拨打电话
NSMutableAttributedString *str = [[NSMutableAttributedStringalloc]initWithString:_phoneBtn.titleLabel.text];
NSRange strRange = {0,[strlength]};
[str addAttribute:NSUnderlineStyleAttributeNamevalue:[NSNumbernumberWithInteger:NSUnderlineStyleSingle]range:strRange];
[_phoneBtnsetAttributedTitle:strforState:UIControlStateNormal]
