NSData contentsOfURL Returns Nil?...

How to change an NSData to an NSDictionary or JSON...

NSData to NSString and vise versa...

Performance for Core Data and UIImage...

Extra argument in call in self.init Swift 2.2...

Cannot convert value of type 'NSData' to expected argument type 'String'...

MKPolyline -> NSKeyedArchiver -> NSData SIGABRT...

Unexpectedly found nil while unwrapping an optional value of type NSData...

How to get data from NSMutableURLRequest in Swift?...

Parsing NSData to Json failed in my swift app...

Swift: pList with "complex" data...

How to convert printed NSData to NSData again?...

Realm object with NSData variable , unexpectedly found nil while unwrapping an Optional value...

Resized width and height of image is not same when saved in documents directory...

Save and Retrieve UIView as NSData in Swift...

NSData baseEncodedString returning nil...

NSString stringWithFormat added "ffffff"...

Check type of class an NSData store?...

Loading an image from web-service on to an UIImage doesn't work properly...

Storing and Restoring std::vector from NSData...

Array corrupt on dispatch_barrier_sync...

Save signature image in png format in ios...

converted image for tableview yielding "unexpectedly found nil while unwrapping optional"...

Swift2 Convert String to NSData...

Need to do Encryption AES256...

swift aes 128 decryption with string input...

iOS SQLite Blob data is saving NULL...

Which encoding do I need to decrypt this AES128 data...

Decoding base64String value returns nil...

Objective-C - NSData to integer does not work...