How to convert unmanaged to NSData?

Question

I need to convert my Objective-C to Swift to get an image of a contact from the Address Book. But I get an error with for cast from CFData to NSData

Answer 1

As explained in Working with Cocoa Data Types, you have to convert the unmanaged object to a memory managed object with takeUnretainedValue() or takeRetainedValue(). In your case

if (ABPersonHasImageData(person)) {
    let imgData = ABPersonCopyImageDataWithFormat(person, kABPersonImageFormatOriginalSize).takeRetainedValue()
    let image = UIImage(data: imgData)
}

because ABPersonCopyImageDataWithFormat() returns a (+1) retained value.