how to concatenate multiple NSData?

Question

My problem is the next> I have to receive data from an external accessory and save it into a big NSData, each time I receive a stream I have to copy that NSData into another one:

CompleteNSData = NSDataTx1 + NSDataTx2 + NSDataTx3;

and at the end show the whole info to the user.

rmaddy · Accepted Answer · 2013-06-24T21:12:31.530

12

Edited since the question was changed:

If you need to concatenate multiple NSData objects into one then something like this will work:

NSData *data1 = ... // the 1st NSData object
NSData *data2 = ... // the 2nd NSData object
NSData *data3 = ... // the 3rd NSData object
NSMutableData *completeData = [data1 mutableCopy];
[completeData appendData:data2];
[completeData appendData:data3];

Call appendData: for each NSData you need to append.

edited Jun 24 '13 at 21:12

answered Jun 24 '13 at 20:49

rmaddy

314,917
42
532
579

addProSig and addAct are used for...? sorry I'm new on this. – Jose Alberto Diaz Jun 24 '13 at 20:56
I have no idea. Those are the methods you posted in your question. If you don't know what they are then you have bigger issues. :) – rmaddy Jun 24 '13 at 20:57

how to concatenate multiple NSData?

1 Answers1