Invalid string in encoding image to base64 - Swift 4 - swift

Question

my issue is when I try to encode an image to base-64, it generate a long string (up to 200,000 lines) and it doesn't work in the decoding, it generate a nil image! even I try to resize the image to a smaller size but still it doesn't work!
Here is my image encoding code
let image = imageView.image
let imageData:NSData = UIImagePNGRepresentation(image!)! as NSData
let strBase64 = imageData.base64EncodedString(options: .lineLength64Characters)
The decoding code:
let processImage = user.value(forKey: "processImage") as! String // image from json
if let dataDecoded:NSData = NSData(base64Encoded: processImage, options: NSData.Base64DecodingOptions.ignoreUnknownCharacters) {
let image: UIImage = UIImage(data:dataDecoded as Data,scale:1.0)!
print(image.size)
self.myImage.image = image }

Answer 1

You can try Following Steps:
Step :- 1 First Fetch the NSData from it
There are three Possibilities:
1. Using Image Name
let image : UIImage = UIImage(named:"imageNameHere")!
//Now use image to create into NSData format
let imageData:NSData = UIImagePNGRepresentation(image)!
2. Using NSURL:
//Use image's path to create NSData
let url:NSURL = NSURL(string : "urlHere")!
//Now use image to create into NSData format
let imageData:NSData = NSData.init(contentsOfURL: url)!
3. Image picked from image picker
let image = info[UIImagePickerControllerOriginalImage] as? UIImage
let imageData:NSData = UIImagePNGRepresentation(image)!
Step:-2 Then Encode:
let strBase64 = imageData.base64EncodedString(options: .lineLength64Characters)
print(strBase64)
Step:-3 Then Decode:
let dataDecoded : Data = Data(base64Encoded: strBase64, options: .ignoreUnknownCharacters)!
let decodedimage = UIImage(data: dataDecoded)
yourImageView.image = decodedimage
Hope it helps.