iOS Storing UIImage in a NSString

[man2manno]

Hey guys, is there a way to take a UIImage and store it temporalily as an NSString then decode it later to view elsewhere. I took the image and made it NSData then converted that to an NSString as shown in the code below:

NSData *imageData = UIImageJPEGRepresentation(imageView.image, 90);
	NSString *imageString = [[NSString alloc] initWithData:imageData encoding:NSASCIIStringEncoding];

And ImageString returns a value of weird characters, which I expected, but now when I go to add ImageString to another string using the stringWithFormat method it becomes a null value. Why? Or is there a better way to do this? Thanks.

 

[Svinja]

Why do you want to store UIImage as NSString? I am sure this can be avoided.
Theoritacally you get array of bytes and if you encode it and decode it same way, it should work, i think...

 

[man2manno]

Well in the long run, I have an NSString with values that are sent to a php which then places those values into my server. However, I also want it to send an Image along with the values. And the easiest way I can think of doing that would be to encode the image some way into the NSString with the other values and send only one request to my server.

 

[PhoneyDeveloper]

You can't do that, at least not reliably. Arbitrary binary data can't be stored as a string, without converting it to an ascii format.

You might try converting to base64, or some other ascii format.

 

[man2manno]

Okay, I have heard about base64, how do you convert an NSData or NSString to base64? Example would be awesome, thanks a lot.

 

[PhoneyDeveloper]

http://www.google.com/search?q=base64+cocoa&hl=en&num=100&lr=&ft=i&cr=&safe=off&tbs=