I have an Android app which uses Base64 to encode images, and encoded strings are stored on a server. I am now making an iOS client for the same app and am struggling to make it encode images in the same way Images encoded on the android end will decode in Swift iOS but images encoded in Swift will NOT decode in Android, or here http://www.freeformatter.com/base64-encoder.html (the resulting file isn't a valid image)
Images encoded in iOS WILL decode in iOS
In Android, I am using the following to encode and decode
public static String encodeBitmap(Bitmap bitmap) {
Bitmap immagex = bitmap;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
immagex.compress(Bitmap.CompressFormat.PNG, 100, baos);
byte[] b = baos.toByteArray();
String imageEncoded = Base64.encodeToString(b, Base64.DEFAULT);
return imageEncoded;
}
public static Bitmap decodeBitmap(String encodedString) {
byte[] decodedByte = Base64.decode(encodedString, Base64.DEFAULT);
Bitmap b = BitmapFactory.decodeByteArray(decodedByte, 0,
decodedByte.length);
return b;
}
And the following on the iOS side
static func decodeImage(str: String) -> UIImage?{
if let decodedData = NSData(base64EncodedString: str, options: NSDataBase64DecodingOptions.IgnoreUnknownCharacters){
var iconValue:UIImage? = UIImage(data: decodedData)
return iconValue
}
return nil
}
static func encodeImage(image: UIImage) -> String{
var imageData = UIImagePNGRepresentation(image)
let base64 = imageData.base64EncodedStringWithOptions(NSDataBase64EncodingOptions.Encoding76CharacterLineLength)
return base64
}
}
I am willing to change either client to make it work
Example: take this image for example https://pbs.twimg.com/profile_images/522909800191901697/FHCGSQg0.png
On Android it encodes to http://pastebin.com/D41Ldjis
And on iOS to http://pastebin.com/fEUZSJvF
iOS one has a much larger character count
