文字中添加图片

NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:@"请在标记有的商户使用"];

        // 创建图片图片附件

        NSTextAttachment *attach = [[NSTextAttachment alloc] init];

        attach.image = [UIImage imageNamed:@"scp_pay_unionicon"];

        attach.bounds = CGRectMake(0, -2, 25, 14);

        NSAttributedString *attachString = [NSAttributedString attributedStringWithAttachment:attach];

        //将图片插入到合适的位置

        [attributedString insertAttributedString:attachString atIndex:5];

        _unionPointLabel.attributedText = attributedString;