NSDataBase64DecodingOptions always returns nil - ios

Question

There are a lot of similar questions but non of them helped me out so I just don't know what to do but ask. So this is how I encode a UIImage:
let data: NSData = UIImagePNGRepresentation(imageResized)!
let base64String: NSString = data.base64EncodedStringWithOptions(.Encoding64CharacterLineLength)
and decoding (as suggested here):
if let range = base64.rangeOfString("data:image/png;base64,", options: .AnchoredSearch) {
base64.removeRange(range)
}
let decodedData = NSData(base64EncodedString: base64, options: NSDataBase64DecodingOptions(rawValue: 0))
if let decodedImage = UIImage(data: decodedData!) {
self.imageList.append(decodedImage)
}
But the app crashes when initializing decodedData and I can't figure out why.
I checked my base64 string here and it returns the picture.
Any help will be very appreciated!

Answer 1

Try with this:
if let decodedData = NSData(base64EncodedString: base64, options:NSDataBase64DecodingOptions.IgnoreUnknownCharacters){
if(decodedData.length > 0){
let imageDecodeData = UIImage(data: decodedData)!
}
else{
print("error")
}
}

Answer 2

Replace the line with let decodedData with:
let decodedData = NSData(base64EncodedString: base64, options: [])
And also make sure that your using correct variables:
// 1. This should be a variable if you're mutating it.
let base64String = data...
// 2. You should probably do this on your base64String
if let range = base64.rangeOfString(...)