How to convert NSData to NSString?

Question

Possible Duplicate:
Convert UTF-8 encoded NSData to NSString

I need to to convert the NSData read from file to NSString. How to do it?

In swift-3 http://stackoverflow.com/questions/12906598/objective-c-convert-nsdata-to-nsstring/40910967#40910967 — Shrawan, Dec 01 '16 at 12:43

score 50 · Accepted Answer · answered May 12 '12 at 16:57

50

NSString provides an initializer for this purpose.

// NSData *data = [NSData data];
NSString *string = [[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding] autorelease];

answered May 12 '12 at 16:57

Brian Gesiak

score 10 · Answer 2 · answered May 12 '12 at 16:58

10

You can do it this way

NSString *yourStr= [[[NSString alloc] initWithData:data
                                         encoding:NSUTF8StringEncoding] autorelease];

or the ohther way to use it when the data ends with a null is:-

NSString *yourStr= [NSString stringWithUTF8String:[theData bytes]];

answered May 12 '12 at 16:58

Abhishek Singh

second option is more elegant and easy to deal with , thanks – vishal dharankar Apr 07 '15 at 12:18
not working for me. data has 4704 bytes when i am using the (either) method suggested by you the NSString is showing nil. Please suggest what to do @roronoa zorro – Vikas Bansal Sep 30 '15 at 06:48

score 6 · Answer 3 · answered May 12 '12 at 16:56

6

NSString *convertedString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]

answered May 12 '12 at 16:56

Tomas Camin

3 Answers3