JSJP_School/LN_School/QiNiu_IMSDK/QMChatRoom/Tool/NSAttributedString+QMEmojiExtension.m

//
//  NSAttributedString+QMEmojiExtension.m
//  IMSDK-OC
//
//  Created by haochongfeng on 2017/5/18.
//  Copyright © 2017年 HCF. All rights reserved.
//

#import "NSAttributedString+QMEmojiExtension.h"
#import "QMTextAttachment.h"

@implementation NSAttributedString (QMEmojiExtension)

- (NSString *)getRichString {
    NSMutableString *plainString = [NSMutableString stringWithString:self.string];
    __block NSUInteger base = 0;
    
    [self enumerateAttribute:NSAttachmentAttributeName inRange:NSMakeRange(0, self.length)
                     options:0
                  usingBlock:^(id value, NSRange range, BOOL *stop) {
                      if (value && [value isKindOfClass:[QMTextAttachment class]]) {
                          [plainString replaceCharactersInRange:NSMakeRange(range.location + base, range.length)
                                                     withString:((QMTextAttachment *) value).emojiCode];
                          base += ((QMTextAttachment *) value).emojiCode.length - 1;
                      }
                  }];
    
    return plainString;
}

@end