Error message when building for simulator in Xcode 8

Question

Error message when building for simulator in Xcode 8.

Using stringWithString: with a literal is redundant

[body appendData:[[NSString stringWithString:@"Content-Type: image/jpeg\r\n\r\n"]
                           dataUsingEncoding:NSUTF8StringEncoding]];    

Thanks in advance

Answer 1

It is because you can simply write it as:

[body appendData:[@"Content-Type: image/jpeg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 

Using NSString stringWithString is redundant.

Answer 2

You can use a literal string

 [body appendData:[@"Content-Type: image/jpeg\r\n\r\n"
dataUsingEncoding:NSUTF8StringEncoding]];