iPhone - Corrupt JPEG data for image received over HTTP

Question

I\'m getting an image over HTTP, using NSURLConnection, as follows -

NSMutableData *receivedData;

- (void)getImage {
    self.receivedData = [[NSMutableDat         


        

Answer 1

Copying the NSData content using receivedData = [NSData dataWithBytes:receivedData.bytes length:receivedData.length] may be helpful too (and it's more efficient than saving to and reading from the disk).

A possible reason for this is that the original receivedData object does not retain its content (e.g. when created using [NSData dataWithBytesNoCopy:length:]) and you try to read them after they are freed.

This is likely when you encounter this problem on another thread from the thread that created the NSData object.