Metadata tutorial from plymouthsoftware.com

gistfile1.txt

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]){
        imagePicker.dismissViewControllerAnimated(true, completion: nil)
        
        var selectedImage = info[UIImagePickerControllerOriginalImage] as! UIImage
        var metadata: NSDictionary
        var library:ALAssetsLibrary? = ALAssetsLibrary()
        
        // Get the images meta data
        if(picker.sourceType == .Camera) {
            metadata = info[UIImagePickerControllerMediaMetadata] as! NSDictionary
            
        } else {
            var referenceURL : NSURL = info[UIImagePickerControllerReferenceURL] as! NSURL
            
            library!.assetForURL(referenceURL, resultBlock: { (asset : ALAsset!) -> Void in
                var rep : ALAssetRepresentation = asset.defaultRepresentation()
                var metadata : NSDictionary = rep.metadata()
            })
            {
                (error : NSError!) -> Void in
            }
        }

        picker.dismissViewControllerAnimated(true, completion: nil);
    }