Emoji characters cannot be encoded to JSON

Question

I have a UITextView which I call messageField. The data within that messageField is POST-ed to server in JSON format. When th

Answer 1

Thanks @Karu, editing your response,I use this code:

Encode for send to server:

NSString *uniText = [NSString stringWithUTF8String:[text_to_send UTF8String]];

NSData *msgData = [uniText dataUsingEncoding:NSNonLossyASCIIStringEncoding];

NSString *str = [[NSString alloc] initWithData:msgData encoding:NSUTF8StringEncoding];

Decode to receive and showing emoji text:

NSData *newdata = [received_string dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];

NSString *mystring = [[NSString alloc] initWithData:newdata encoding:NSNonLossyASCIIStringEncoding];

NSString *finalString= @"";

if (mystring) {
   finalString = mystring;
}else{
   finalString = received_string;
}

This code run perfect on iOS 9