I am trying to encode and decode a String using android.util.Base64, but it gives a bad base-64 error.
String str = "EOKF36syRBtB11VgyChkNjc1HxRrajT7XXaxZfnVzPkV57K3b9yqkS284Ovb9uWzXgGeY2bxA3IySGfdOHiPAQ==F/v6hcTiU1sd975XHfDsz8o0rboujM77n7KwRMidobOLbo5ghUT/IFcxElUc8CirdZxaCaS3zs/CfRKRsXwbFNYd"; Base64.decode(str,Base64.NO_WRAP); I am trying to decode the string using the following flags (NO_CLOSE, DEFAULT, NO_PADDING, URL_SAFE) but it give the same error.
Please help me to solve my problem.
I use below method for decoding base64 strings and it works fine.
private String decodeBase64(String coded){ byte[] valueDecoded= new byte[0]; try { valueDecoded = Base64.decode(coded.getBytes("UTF-8"), Base64.DEFAULT); } catch (UnsupportedEncodingException e) { } return new String(valueDecoded); } Your encoded string seems to be corrupted. Try decoding the string you have defined in the variable 'str' using an online base64 decoder. The result is garbled text.
Place a correct base64 String and try like below
String img = "your_base_64_string"; byte[] decodedString = Base64.decode(img, Base64.DEFAULT); Bitmap decodedByte = BitmapFactory.decodeByteArray(decodedString, 0, decodedString.length); 
Base64DecoderExceptionwith message encoded getValue has invalid trailing byte, which means that the chunk being decoded at the time isn't finalized by an equal sign (61) or new line (10) byte. If it is really worth it—or want to learn more—you can debug/breakpoint what is being done in theBase64class and also see the Base64 spec online.