- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {

    //禁止所有输入法的表情

    if ([self isContainsTwoEmoji:text]) {

        return NO;

    }

    return YES;

}

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

    __block BOOL isEomji = NO;

    [string enumerateSubstringsInRange:NSMakeRange(, [string length]) options:NSStringEnumerationByComposedCharacterSequences usingBlock:

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

         const unichar hs = [substring characterAtIndex:];

         //         NSLog(@"hs++++++++%04x",hs);

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

             if (substring.length > ) {

                 const unichar ls = [substring characterAtIndex:];

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

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

                 {

                     isEomji = YES;

                 }

                 //                 NSLog(@"uc++++++++%04x",uc);

             }

         } else if (substring.length > ) {

             const unichar ls = [substring characterAtIndex:];

             if (ls == 0x20e3|| ls ==0xfe0f) {

                 isEomji = YES;

             }

             //             NSLog(@"ls++++++++%04x",ls);

         } else {

             if (0x2100 <= hs && hs <= 0x27ff && hs != 0x263b) {

                 isEomji = YES;

             } else if (0x2B05 <= hs && hs <= 0x2b07) {

                 isEomji = YES;

             } else if (0x2934 <= hs && hs <= 0x2935) {

                 isEomji = YES;

             } else if (0x3297 <= hs && hs <= 0x3299) {

                 isEomji = YES;

             } else if (hs == 0xa9 || hs == 0xae || hs == 0x303d || hs == 0x3030 || hs == 0x2b55 || hs == 0x2b1c || hs == 0x2b1b || hs == 0x2b50|| hs == 0x231a ) {

                 isEomji = YES;

             }

         }

     }];

    return isEomji;

}