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base64 decode string and encode all special characters lost

I have a Java class which I convert to string using GSON. Post this the string is base64 encoded (for some reason, lets not go there :) ) When I decode it back I lose all { and " " characters in json.
For example: {"name":"ABC"} decoded and encoded back becomes nameABC
I want to get my old data back i.e I want {"name:"ABC"} back
String json = "{\"name\":\"ABC\"}";
byte en[] = android.util.Base64.decode(json,Base64.NO_WRAP);
String st = android.util.Base64.encodeToString(en,Base64.NO_WRAP);
Something as simple as above, content is lost
Please help

You can't Base64 has set 64 characters that can converted to binary and vice versa, characters like { and " is not in the 64 set of characters check this
Try using URLDecoder with UTF-8 or any other encoding method which support UTF-8

Android decode Ukrainian characters

I am getting these characters as a JSON response :
This characters should be translated to Ukrainian word Активная
How can I decode this set of characters, tried it with java URLDecoder, no luck so far, any ideas ?

The encoding is XML entity encoding. Use an XML parser or Html.fromHtml() to decode it.
Also, consider fixing the server side to use JSON \uNNNN encoding for character literals instead.

XML parse error on ë (crash with accented letters)

I have a crash in an xml file. it occurs on a ë, in this case belgië (dutch for belgium).
I'm busy with searching for an answer but I just can't find a solution.
I'm using the sax parser under Android.
error: org.apache.harmony.xml.ExpatParser$ParseException: At line 2, column 204: not well-formed
xml source: http://biohorma.weatheronyoursite.com/villadm_hooikoortsverwachting_be.xml
Side note, i get the data via a stream, is the only option to put this stream to a temp value, replace the illegal character with a valid one and make a new stream of it or can you add something in the stream to do this?

It seems you should use the String (byte[] bytes, String enc) constructor, assuming what server sends you is encoded in UTF-8:
String properXml = new String(byteArrayIReceivedFromServer, "UTF-8");

The issue is not with the parser - it's acting correctly - but with whatever code is sending the XML. ë needs to be encoded and passed as ë. The same also must be done to other accented characters, ampersands and angle brackets.

You should replace special characters in the xml I think..
See a comprehensive list of chars here: http://www.w3schools.com/tags/ref_entities.asp
it says your umlaut e is like : Ë Ë Ë capital e, umlaut mark
Then also for a brief explanation if u feel like reading.
Hope it helps.

The server sends these headers:
Content-Type: text/xml
Content-Length: 124512
Since no charset is specified for content type, the normally correct assumption is US_ASCII. However, the XML payload seems to be encoded in ISO-8859-1
<?xml version="1.0" encoding="iso-8859-1"?>
and the 'ë' is encoded as 0xEB (235). It is very common for servers to encode text payload in ISO-8859-1, so this is something that one simply has to deal with.
My guess is that if you serve the parser with a byte stream directly, it will detect the encoding an act accordingly. If you use a character stream (not recommended), make sure to specify correct encoding.

Json parsing converts html tags to escape sequence

I am fetching few html content from my server for which I am using JSON parsing. But this converts my html content to unicode values.
For Eg: <p>Spend minimum $10 (in a single same-day receipt) at any outlet<\/p> is getting converted to,
;p>Spend minimum $10 (in a single same-day receipt) at any outlet </p>
Now if I try to set this to my WebView it displays with HTML tags itself. If I try to encode the data using TextUtils.encode it displays the text with unicode values.
Can anyone help me with this.
How should I fetch a HTML content and display it in WebView?

I am not getting your question exactly but, If you want to load HTML in web view in you can use
webView.loadDataWithBaseURL(null, html, "text/html", "UTF-8", null);
and if you want to convert &lt and &gt like notation you can use Jsoup Library

Guys thanks for your help. But I have solved this issue myself. I have elaborated my way of solving the issue.
What I did is,
1)convert the unicode value to Spanned like this,
Spanned ss=Html.fromHtml(;p>Spend minimum $10 (in a single same-day receipt) at any outlet </p>");
2)Now convert this Spanned to String like this,
String tempString=ss.toString();
3)And now set this to WebView which solved the problem,
webView.loadData(tempString, "text/html","UTF-8");

Actually this isn't JSON encoder converts data to HTML entities but some other layer, before it passed to JSON encoder.
JSON have nothing to do with HTML tags, usually only quotes encoded by parser (Unicode is supported by most parsers).
You probably need to change the way data is returned by server, to omit encoding of HTML tags braces to HTML entities or decoding entities backin your app.
Update:
To decode HTML entities used in HTML tags (and others too) you may use StringEscapeUtils.unescapeHTML()

To show the HTML page inside the Webview why you require the JSON. create web view inside the XML and write below code Inside the Activity you can see the HTML page.
webView = (WebView)findViewById(R.id.webView);
FrameLayout mContentView = (FrameLayout) getWindow().
getDecorView().findViewById(android.R.id.content);
final View zoom = this.webView.getZoomControls();
mContentView.addView(zoom, ZOOM_PARAMS);
zoom.setVisibility(View.GONE);
webView.loadUrl("http://www.google.co.in/");

android java URLDecoder problem

i have a String displayed on a WebView as "Siwy & Para Wino"
i fetch it from url , i got a string "Siwy%2B%2526%2BPara%2BWino". // be corrected
now i'm trying to use URLDecoder to solve this problem :
String decoded_result = URLDecoder.decode(url); // the url is "Siwy+%26+Para+Wino"
then i print it out , i still saw "Siwy+%26+Para+Wino"
Could anyone tell me why?

From the documentation (of URLDecoder):
This class is used to decode a string which is encoded in the application/x-www-form-urlencoded MIME content type.
We can look at the specification to see what a form-urlencoded MIME type is:
The form field names and values are escaped: space characters are replaced by '+', and then reserved characters are escaped as per [URL]; that is, non-alphanumeric characters are replaced by '%HH', a percent sign and two hexadecimal digits representing the ASCII code of the character. Line breaks, as in multi-line text field values, are represented as CR LF pairs, i.e. '%0D%0A'.
Since the specification calls for a percent sign followed by two hexadecimal digits for the ASCII code, the first time you call the decode(String s) method, it converts those into single characters, leaving the two additional characters 26 intact. The value %25 translates to % so the result after the first decoding is %26. Running decode one more time simply translates %26 back into &.
String decoded_result = URLDecoder.decode(URLDecoder.decode(url));
You can also use the Uri class if you have UTF-8-encoded strings:
Decodes '%'-escaped octets in the given string using the UTF-8 scheme.
Then use:
String decoded_result = Uri.decode(Uri.decode(url));

thanks for all answers , i solved it finally......
solution:
after i used URLDecoder.decode twice (oh my god) , i got what i want.
String temp = URLDecoder.decode( url); // url = "Siwy%2B%2526%2BPara%2BWino"
String result = URLDecoder.decode( temp ); // temp = "Siwy+%26+Para+Wino"
// result = "Swy & Para Wino". !!! oh good job.
but i still don't know why.. could someone tell me?