iOS判斷是否是表情和郵箱格式的判斷

來源:互聯網
上載者:User

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1.該方法是從論壇上看到的,,自己用啦下  感覺挺好用,在這裡做個備忘吧 !!!!!

2.應用環境,使用者輸入暱稱的時候,不可以輸入 表情


- (BOOL)stringContainsEmoji:(NSString *)string {

   __blockBOOL returnValue =NO;

    [string enumerateSubstringsInRange:NSMakeRange(0, [stringlength])options:NSStringEnumerationByComposedCharacterSequencesusingBlock:

     ^(NSString *substring,NSRange substringRange,NSRange enclosingRange, BOOL *stop) {

         

        constunichar hs = [substringcharacterAtIndex:0];

         // surrogate pair

        if (0xd800 <= hs && hs <= 0xdbff) {

            if (substring.length > 1) {

                constunichar ls = [substringcharacterAtIndex:1];

                constint uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000;

                if (0x1d000 <= uc && uc <= 0x1f77f) {

                     returnValue =YES;

                 }

             }

         }elseif (substring.length > 1) {

            constunichar ls = [substringcharacterAtIndex:1];

            if (ls == 0x20e3) {

                 returnValue =YES;

             }

             

         }else {

             // non surrogate

            if (0x2100 <= hs && hs <= 0x27ff) {

                 returnValue =YES;

             }elseif (0x2B05 <= hs && hs <= 0x2b07) {

                 returnValue =YES;

             }elseif (0x2934 <= hs && hs <= 0x2935) {

                 returnValue =YES;

             }elseif (0x3297 <= hs && hs <= 0x3299) {

                 returnValue =YES;

             }elseif (hs == 0xa9 || hs == 0xae || hs == 0x303d || hs == 0x3030 || hs == 0x2b55 || hs == 0x2b1c || hs == 0x2b1b || hs == 0x2b50) {

                 returnValue =YES;

             }

         }

     }];

    

   return returnValue;

}



//郵箱的判讀

//判斷是否是郵箱格式

-(BOOL)isValidateEmail:(NSString *)email

{

    

    NSString *emailRegex =@"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}";

    

    NSPredicate *emailTest = [NSPredicatepredicateWithFormat:@"SELF MATCHES%@",emailRegex];

    

   return [emailTest evaluateWithObject:email];

    

}



iOS判斷是否是表情和郵箱格式的判斷

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