Swift encoding/decoding images for JSON

Question

I'm kinda new to swift and i need some help with encoding some image, putting it in a JSON and after retrieving it, decoding it back to NSData and recreating the image in an UIImage view controller. I've found this post Convert Image to Base64 string in iOS + Swift but i get stuck with this part:

let decodedData = NSData(base64EncodedString: base64String, options: NSDataBase64DecodingOptions.fromRaw(0)!)

because the fromRaw method is not available anymore.

Thanks in advance

Later edit: I'm using swiftyJson to parse the array and i'm getting the image data like this:

var base64String = arrayJson[0]["photo"].stringValue
var imageString = base64String as NSString

and after that i'm trying to decode it like this:

let decodedData = NSData(base64EncodedString: imageString, options: NSDataBase64DecodingOptions.IgnoreUnknownCharacters)

I've also tried with the rawValue instead of IgnoreUnknownCharacters. Both return nil. Also tried with the base64String instead of imageString. Same thing.

Answer 1

You can do the following instead to make a base64 encoded string to an UIImage:

 //base64 string to NSData
 let decodedData = NSData(base64EncodedString: base64String, options: NSDataBase64DecodingOptions(rawValue: 0))

//NSData to UIImage
var decodedIamge = UIImage(data: decodedData!)

NSDataBase64EncodingOptions.fromRaw(0)! now is changed to NSDataBase64DecodingOptions(rawValue: 0)

For more encode/decode details, you can visit this post: Convert between UIImage and Base64 string