Base64 encoding with Swift 3

Question

How do you encode an image to base64 in Swift 3.0?

I tried to do it this way:

let imageData = UIImageJPEGRepresentation(globalImage!, 75)
let string64 = imageData!.base64EncodedString()

where globalImage is my image. I successfully sent the data to my web server but when I try to load the image it's not in a form that my computer can recognize.

That is how you Base64 encode data. The problem must be somewhere else. — Martin R
– Martin R, Commented Sep 14, 2016 at 9:28

Skatox · Accepted Answer · 2017-03-16 01:28:49Z

1

Here are the encoding and decoding methods.

func encodeImageToBase64(image : UIImage) -> String{

   let imageData : Data = UIImagePNGRepresentation(image)! as Data
   let strBase64 = imageData.base64EncodedString(options: Data.Base64EncodingOptions.init(rawValue: 0))
   return strBase64
}

func decodeBase64ToImage(base64 : String) -> UIImage{

    let dataDecoded : NSData = NSData(base64Encoded: base64, options: NSData.Base64DecodingOptions(rawValue: 0))!
    let decodedimage : UIImage = UIImage(data: dataDecoded as Data)!
    return decodedimage
}

edited Mar 16, 2017 at 1:28

Skatox

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answered Dec 26, 2016 at 12:19

Usman Javed

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Comments

Skatox · Accepted Answer · 2017-03-16 01:28:11Z

0

Your second parameter is 75, it should be 0.7

let imageData = UIImageJPEGRepresentation(globalImage!, 0.7)

edited Mar 16, 2017 at 1:28

Skatox

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answered Mar 16, 2017 at 1:05

ZHENGYING

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