ios - How to determine what's the file type -


i use asihttprequest download file. url http://www.aaa.bbb.com:8000/showuploaddocument.aspx?docid=45. not able determine file type through url. how can determine file type of downloaded file?

you can query content-type header returned server:

nsstring *contenttype = [[request responseheaders] objectforkey:@"content-type"];

this string image/jpeg, text/plain, etc.


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