iOS 5: How to convert an Emoji to a unicode character?

Please try this :

1. Convert Emoji to unicode

   NSData *data = [strEmo dataUsingEncoding:NSNonLossyASCIIStringEncoding];
   NSString *goodValue = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
   

2. Very easy to convert unicode to Emoji

   NSData *data = [strEmo dataUsingEncoding:NSUTF8StringEncoding];
   NSString *goodValue = [[NSString alloc] initWithData:data encoding:NSNonLossyASCIIStringEncoding];