iOS开发之UILable显示不同字体和颜色，添加删除线

最近频繁的使用Lable的一系列属性，随手整理一下相关属性的详细使用方法

运行效果图片.png

    NSString *str = @"第一个字符字号比正常字符小，最后一个字符字号比正常字符大";
    NSMutableAttributedString *attributeStr = [[NSMutableAttributedString alloc] initWithString:str];
    // lable某一个字符字号与其他字号不一样
   #pragma mark -  获取一长串字符中的某一小段字符的范围可以用如下方法： - (NSRange)rangeOfString:(NSString *)searchString  注意：只适用于不会出现重复字符串的情况，出现重复字符优先显示靠近前面的字符串
    [attributeStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:6] range:[str rangeOfString:@"第一个"]];
     [attributeStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:26] range:[str rangeOfString:@"正常字符大"]];
    
    self.lable1.attributedText = attributeStr;
    
    NSString *str2 = @"开始的三个字是蓝色的，中间的五个字颜色是红色的，结尾的三个字是绿色的";
    NSMutableAttributedString *attributeStr2 = [[NSMutableAttributedString alloc] initWithString:str2];
    // lable某一个字符颜色与其他颜色不一样
    [attributeStr2 addAttribute:NSForegroundColorAttributeName value:[UIColor cyanColor] range:[str2 rangeOfString:@"开始的"]];
    [attributeStr2 addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(str2.length/2-2, 5)];
    [attributeStr2 addAttribute:NSForegroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(str2.length-3, 3)];
    self.lable2.attributedText = attributeStr2;
    
    NSString *str3 = @"￥23.05 45.50";
    NSMutableAttributedString *attributeStr3 = [[NSMutableAttributedString alloc] initWithString:str3];
    // lable某一段文字加删除符
    [attributeStr3 addAttribute:NSStrikethroughStyleAttributeName value:@(NSUnderlinePatternSolid | NSUnderlineStyleSingle) range:[str3 rangeOfString:@"45.50"]];
    
    self.lable3.attributedText = attributeStr3;
    
    
    /** 综合处理 */
    NSMutableAttributedString *str4 = [[NSMutableAttributedString alloc] initWithString:@"What's The Fack Thing"];
    [str4 addAttribute:NSForegroundColorAttributeName value:[UIColor blueColor] range:NSMakeRange(0,6)];
    [str4 addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(11,4)];
    [str4 addAttribute:NSForegroundColorAttributeName value:[UIColor greenColor] range:NSMakeRange(16,5)];
    [str4 addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:26] range:NSMakeRange(7,3)];
    [str4 addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"Arial-BoldItalicMT" size:30.0] range:NSMakeRange(0, 6)];
    [str4 addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"HelveticaNeue-Bold" size:30.0] range:NSMakeRange(11, 4)];
    [str4 addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"Courier-BoldOblique" size:30.0] range:NSMakeRange(16, 5)];
    self.lable4.attributedText = str4;