Using Base64 in android

Question

I am converting my image to byte array then to base64 string it coverts and decodes perfectly but when i saves that string to mysql database using php and retrieves it from database it do not decodes that and says bad base64

Here is my code.

php

$sql = "insert into users(username, password, email,mob,imagetext)
                            values ('".$username."', '".$password."', '".$email."', '".$mob."', '".$imageText."') ";

android

encode

 ByteArrayOutputStream baos = new ByteArrayOutputStream();  
 Bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
 byte[] b = baos.toByteArray();
 String imageEncoded = Base64.encodeToString(b,Base64.DEFAULT);

Decode

 byte[] decodedByte = Base64.decode(value, Base64.DEFAULT);                     
 b = BitmapFactory.decodeByteArray(decodedByte, 0, decodedByte.length);

I inserting as a text using PHP the encode and decode is handled by android code. Is that correct way? I am new in coding ! — Punit
– Punit, Commented Jan 10, 2014 at 19:25

jjhorgan · Accepted Answer · 2014-01-10 20:38:42Z

3

Try changing the Base64 encoding options from Base64.DEFAULT. You should use Base64.URL_SAFE which will use characters that wont need to be url encoded when sent to your php script. Also consider using Base64.NO_WRAP which will prevent MIME new lines from being added to your base 64 output.

answered Jan 10, 2014 at 20:38

jjhorgan

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Faruk · Accepted Answer · 2016-03-11 12:06:49Z

1

Based on above answer, Encode :

 String imageEncoded = Base64.encodeToString(b,Base64.NO_WRAP | Base64.URL_SAFE);

Decode :

 byte[] decodedByte = Base64.decode(value, Base64.NO_WRAP | Base64.URL_SAFE);

answered Mar 11, 2016 at 12:06

Faruk

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