How to detect text file encoding in objective-c?

Question

I want to know the text file encoding in objective-c. Can you explain me how to know that?

Answer 1

You can use stringWithContentsOfFile:usedEncoding:error:, which returns, in addition to the new string, the encoding that was used.

I should note that this is a heuristic process by nature -- it's not always possible to determine the character encoding of a file.