NSMutableAttributedString图文混排，文字特效

    UILabel * lable = [UILabel new];
    lable.backgroundColor = [UIColor yellowColor];
    lable.font = [UIFont systemFontOfSize: 20];
    [self.view addSubview:lable];
    lable.frame = CGRectMake(100, 100, 200, 30);
    
    NSMutableAttributedString *attributedString = [NSMutableAttributedString new];
    //1- 你好
    NSAttributedString *first = [[NSAttributedString alloc]initWithString:@"你好"];
    
    //2- 图片
    
    NSTextAttachment *attachment = [[NSTextAttachment alloc]init];
    
    attachment.image = [UIImage imageNamed:@"header_cry_icon.png"];
    
    //计算文字高度
    float lineH = lable.font.lineHeight;
    
    attachment.bounds = CGRectMake(0, -(lable.bounds.size.height - lineH)*0.5, lineH, lineH);
    
    NSAttributedString *pic = [NSAttributedString attributedStringWithAttachment:attachment];
    
    // 3- 文字
    NSAttributedString *san = [[NSAttributedString alloc]initWithString:@"不好"];
    
    
    [attributedString appendAttributedString:first];
    [attributedString appendAttributedString:pic];
    [attributedString appendAttributedString:san];
    
    lable.attributedText = attributedString;

        UILabel *label = [[UILabel alloc] init];
        // 设置属性文字
        NSString *text = @"你好\n哈哈哈";
        NSMutableAttributedString *attributedText = [[NSMutableAttributedString alloc] initWithString:text];
        [attributedText addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:10] range:NSMakeRange(0, text.length)];
        [attributedText addAttribute:NSFontAttributeName value:[UIFont boldSystemFontOfSize:13] range:NSMakeRange(3, 3)];
        label.attributedText = attributedText;
        // 其他设置
        label.numberOfLines = 0;
        label.textAlignment = NSTextAlignmentCenter;
        label.frame = CGRectMake(0, 0, 100, 40);
        [self.view addSubview:label];
        self.navigationItem.titleView = label;

Snip20170303_1.png

        UILabel *label = [[UILabel alloc] init];
    //    label.text = @"你好哈哈哈";
        NSMutableAttributedString *text = [[NSMutableAttributedString alloc] initWithString:@"你好哈哈哈"];
        [text addAttribute:NSForegroundColorAttributeName value:[UIColor yellowColor] range:NSMakeRange(0, 3)];
        [text addAttribute:NSBackgroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(2, 3)];
        label.attributedText = text;
        label.frame = CGRectMake(100, 100, 100, 25);
        [self.view addSubview:label];