objective-c: how to assign string to NSMutableData?

Question

I am to send data to digital meter for which I want data in NSMutableData form. I am trying to assign it data but getting errors.

NSMutableData *body = [[NSMuta         


        

Answer 1

You could convert NSString into NSData with[@"1" dataUsingEncoding:NSUTF8StringEncoding], the rest of your code is OK.

NSMutableData *body = [[NSMutableData alloc] initWithData:[@"1" dataUsingEncoding:NSUTF8StringEncoding]];