iOS开发：判断字符串是否含有表情

来源：互联网发布：淘宝上的试用是真的吗编辑：程序博客网时间：2024/04/30 13:59
+ (BOOL)stringContrainsEmoji:(NSString *)string {    __block BOOL returnValue = NO;    [string enumerateSubstringsInRange:NSMakeRange(0, string.length) options:NSStringEnumerationByComposedCharacterSequences usingBlock:^(NSString * _Nullable substring, NSRange substringRange, NSRange enclosingRange, BOOL * _Nonnull stop) {        const unichar hs = [substring characterAtIndex:0];        if (0xd800 <= hs && hs <= 0xdbff) {            if (substring.length > 1) {                const unichar ls = [substring characterAtIndex:1];                const int uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000;                if (0x1d000 <= uc && uc <= 0x1f77f) {                    returnValue = YES;                }            }        } else if (substring.length > 1) {            const unichar ls = [substring characterAtIndex:1];            if (ls == 0x20e3) {                returnValue = YES;            }        } else {            if (0x2100 <= hs && hs <= 0x27ff) {                returnValue = YES;            } else if (0x2B05 <= hs && hs <= 0x2b07) {                returnValue = YES;            } else if (0x2934 <= hs && hs <= 0x2935) {                returnValue = YES;            } else if (0x3297 <= hs && hs <= 0x3299) {                returnValue = YES;            } else if (hs == 0xa9 || hs == 0xae || hs == 0x303d || hs == 0x3030 || hs == 0x2b55 || hs == 0x2b1c || hs == 0x2b1b || hs == 0x2b50) {                returnValue = YES;            }        }    }];    return returnValue;}
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