如何在UILabel文字的前后添加图片？

现在遇到这样一个需求：Lable中显示的文字需要用一个引号来括住

这个时候需要借助Label的Attributstring中textAttachment,需要在文字中的哪个部位放置图片，我们就将该文字从哪段切开，然后在末尾添加图片(如果要在开头添加，只需要拼接一段" "在末尾添加上图片即可),具体的代码实现如下:

- (void)insertPictureInLabel
{
    
    NSTextAttachment *foreAttachment = [[NSTextAttachment alloc]init];
    foreAttachment.image = [UIImage imageNamed:@"bl_ios_splb_qyh"];
    foreAttachment.bounds = CGRectMake(0, 0, 15, 15);
    
    NSTextAttachment *backAttachment = [[NSTextAttachment alloc]init];
    backAttachment.image = [UIImage imageNamed:@"bl_ios_splb_hyh"];
    backAttachment.bounds = CGRectMake(0, 0, 15, 15);
    
    NSMutableAttributedString *orginalAttributString = [[NSMutableAttributedString alloc]initWithString:@""];
    NSAttributedString *firsString = [NSAttributedString attributedStringWithAttachment:foreAttachment];
    [orginalAttributString appendAttributedString:firsString];
    
    UILabel *pictureLabel = [[UILabel alloc]initWithFrame:CGRectMake(50, 64, screenSize.width - 100, 150)];
    pictureLabel.backgroundColor = [UIColor clearColor];
    NSMutableAttributedString *newAttributString = [[NSMutableAttributedString alloc]initWithString:@" 现在说的一些可能比较基础，大家会比较没兴趣，可是基础是练成高超技术的基石，趁着写博客的时候我自己也回顾一下这些基础知识，如果需要的demo的话我再发上来 "];
    pictureLabel.font = [UIFont systemFontOfSize:15];
    pictureLabel.numberOfLines = 0;
    NSAttributedString *secondString = [NSAttributedString attributedStringWithAttachment:backAttachment];
    [newAttributString appendAttributedString:secondString];
    
    [orginalAttributString appendAttributedString:newAttributString];
    pictureLabel.attributedText = orginalAttributString;
    
    [self.view addSubview:pictureLabel];
}