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Can't get the value from doInBackGround() process at onPostExecute()

I'm using AsyncTask to insert, update and delete data from database. I used this code to insert, update, delete and it works fine. But when I want to use select, and show the data at EditText, I can't get the value from doInBackground() to the onPostExecute() and it shows nothing.
Here's my code :
MenuUtama.java
public class MenuUtama extends Activity {
/** Called when the activity is first created. */
private TextView nama_user;
private String nm_user = "";
private EditText kode, nama, harga, deskripsi;
private Button insert, update, delete, cek;
private String kode1, nama1, harga1, deskripsi1;
JSONArray data = null;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
kode = (EditText) findViewById(R.id.editKode);
nama = (EditText) findViewById(R.id.editNama);
harga = (EditText) findViewById(R.id.editHarga);
deskripsi = (EditText) findViewById(R.id.editDes);
cek = (Button) findViewById(R.id.btnCek);
insert = (Button) findViewById(R.id.buttonInsert);
update = (Button) findViewById(R.id.buttonUpdate);
delete = (Button) findViewById(R.id.buttonDelete);
nama_user = (TextView) findViewById(R.id.textView3);
Intent i = getIntent();
nm_user = i.getStringExtra("nama_user");
nama_user.setText(nm_user);
insert.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
String url = "";
url = "http://192.168.1.10/crudsederhana/aksi.php";
try {
String ko = URLEncoder.encode(kode.getText().toString(),"utf-8");
String n = URLEncoder.encode(nama.getText().toString(),"utf-8");
String hr = URLEncoder.encode(harga.getText().toString(),"utf-8");
String d = URLEncoder.encode(deskripsi.getText().toString(), "utf-8");
url += "?a=insert&kd=" + ko + "&nm=" + n + "&hrg=" + hr + "&deskripsi=" + d;
new CRUD().execute(url);
}
catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
});
update.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
String url = "";
url = "http://192.168.1.10/crudsederhana/aksi.php";
try {
String ko = URLEncoder.encode(kode.getText().toString(),"utf-8");
String n = URLEncoder.encode(nama.getText().toString(),"utf-8");
String hr = URLEncoder.encode(harga.getText().toString(),"utf-8");
String d = URLEncoder.encode(deskripsi.getText().toString(), "utf-8");
url += "?a=update&kd=" + ko + "&nm=" + n + "&hrg=" +hr+ "&des=" + d;
new CRUD().execute(url);
}
catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
});
delete.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
String url = "";
kode1 = kode.getText().toString();
url = "http://192.168.1.10/crudsederhana/aksi.php?a=delete&kd=" + kode1;
new CRUD().execute(url);
}
});
cek.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
String url = "";
kode1 = kode.getText().toString();
url = "http://192.168.1.10/crudsederhana/aksi.php?a=read&kd="+kode1;
new CRUD().execute(url);
}
});
}
public class CRUD extends AsyncTask<String, String, String> {
String success;
String kode_d, nama_d, harga_d, des_d;
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected String doInBackground(String... params) {
JSONParser jParser = new JSONParser();
JSONObject json = jParser.getJSONFromUrl(params[0]);
try {
success = json.getString("success");
Log.e("error", "nilai sukses=" + success);
JSONArray hasil = json.getJSONArray("login");
if (success.equals("1")) {
for (int i = 0; i < hasil.length(); i++) {
JSONObject c = hasil.getJSONObject(i);
kode_d = c.getString("kd");
nama_d = c.getString("nm");
harga_d = c.getString("hrg");
des_d = c.getString("deskripsi");
}
}
else {
Log.e("erro", "tidak bisa ambil data 0");
}
}
catch (Exception e) {
// TODO: handle exception
Log.e("erro", "tidak bisa ambil data 1");
}
return kode_d;
}
protected void onPostExecute(String result) {
super.onPostExecute(result);
kode.setText(kode_d);
nama.setText(nama_d);
harga.setText(harga_d);
deskripsi.setText(des_d);
}
}
}
JSONParser.java
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
public JSONObject getJSONFromUrl(String url) {
// Making HTTP request
try {
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
catch (ClientProtocolException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
}
catch (Exception e) {
Log.e("Buffer Error", "Error converting result " +e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
}
catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " +e.toString());
}
// return JSON String
return jObj;
}
public JSONObject makeHttpRequest(String url, String method, List<NameValuePair> params) {
// Making HTTP request
try {
// check for request method
if (method == "POST") {
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
else if (method == "GET") {
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
}
catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
catch (ClientProtocolException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
}
catch (Exception e) {
Log.e("Buffer Error", "Error converting result " +e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
}
catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " +e.toString());
}
// return JSON String
return jObj;
}
}

It is because you don't return any value from the doInBackground() (always return null) and you are not using the 'string' in the onPostExecute(String result) formal parameter. Garbage-In-Garbage-Out

your doInBackground() returns just a string return kode_d; and then in your onPostExecute(String result) (which expects a String) you use the kode_d which is null.
If you want all of those values to be returned create an ArrayList(), return it at the end doInBackground() and get it in onPostExecute(ArrayList result) with an iteration and pass it to you textviews.
Even better create an object and add the values to each field. Your fields are the kode_d, nama_d, harga_d, des_d
this is what the onPostExecute does
/**
* <p>Runs on the UI thread after {#link #doInBackground}. The
* specified result is the value returned by {#link #doInBackground}.
* To better support testing frameworks, it is recommended that this be
* written to tolerate direct execution as part of the execute() call.
* The default version does nothing.</p>
*
* <p>This method won't be invoked if the task was cancelled.</p>
*
* #param result The result of the operation computed by {#link #doInBackground}.
*
* #see #onPreExecute
* #see #doInBackground
* #see #onCancelled(Object)
*/

Get value from Async task in Activity

I have a class as shown below. It is in a .java file called NQRequestHandler.java and I want to call this from an Activity.java. But I'm having problems with the AsyncTask method. When I run it in the Activity.java file it returns a null
value when I try to log the value of Globals.PUBLIC_KEY from the Activity.
Log.v("RESULT", "Public KEY JSON from OnStart" + Globals.PUBLIC_KEY);
public class NQRequestHandler {
private static NQRequestHandler instance;
public static final String TAG = NQRequestHandler.class.getSimpleName();
private Context mContext;
public NQRequestHandler(Context context) {
mContext = context;
}
public static synchronized NQRequestHandler getInstance(Context context) {
if (instance == null)
instance = new NQRequestHandler(context);
return instance;
}
public class requestHandler extends AsyncTask<String, Void, JSONArray> {
RequestListener requestListener;
public JSONArray requestResult;
public requestHandler() {
}
public void setRequestListener(RequestListener requestListener) {
this.requestListener = requestListener;
}
#Override
protected JSONArray doInBackground(String... params) {
try {
String url = "http://www.someurl.com";
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(url);
List<NameValuePair> urlParameters = requestHandlerHelper(params);
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(urlParameters);
entity.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/x-www-form-urlencoded; charset=UTF-8"));
post.setEntity(entity);
HttpResponse response = client.execute(post);
System.out.println("Response Code : " + response.getStatusLine().getStatusCode());
Reader reader = new InputStreamReader(response.getEntity().getContent());
int contentLength = (int) response.getEntity().getContentLength();
Log.v(TAG, "Content Length DATA" + contentLength);
char[] charArray = new char[contentLength];
reader.read(charArray);
String responseData = new String(charArray);
JSONArray jsonResponse = new JSONArray(responseData);
return jsonResponse;
} catch (ClientProtocolException e) {
Log.i(TAG, "ClientProtocolException: ", e);
} catch (UnsupportedEncodingException e) {
Log.i(TAG, "UnsupportedEncodingException: ", e);
} catch (IOException e) {
Log.i(TAG, "IOException: ", e);
} catch (JSONException e) {
Log.i(TAG, "JSONException: ", e);
}
return null;
}
#Override
protected void onPostExecute(JSONArray results) {
if (results != null) {
requestListener.onRequestSuccess(results);
} else {
requestListener.onRequestFailed();
}
}
}
public interface RequestListener {
JSONArray onRequestSuccess(JSONArray data);
void onRequestFailed();
}
public void NQRequest(String... params) {
if (isNetworkAvailable()) {
requestHandler handler = new requestHandler();
RequestListener listener = new RequestListener() {
#SuppressWarnings("unchecked")
#Override
public JSONArray onRequestSuccess(JSONArray data) {
//TODO: Switch set data here
Log.v(TAG, "JSON FROM NQRequest" + data);
Globals.PUBLIC_KEY = String.valueOf(data);
return data;
}
#Override
public void onRequestFailed() {
Toast.makeText(mContext, "Network is unavailable. Request failed", Toast.LENGTH_LONG).show();
}
};
handler.setRequestListener(listener);
handler.execute(params);
} else {
Toast.makeText(mContext, "Network is unavailable", Toast.LENGTH_LONG).show();
}
}
private static List<NameValuePair> requestHandlerHelper(String... params) {
//Declare URL Parameter values
List<NameValuePair> urlParameters = new ArrayList<NameValuePair>();
String[] requestActionArray = Globals.REQUEST_ACTION_ID;
int actionSwitch = -1;
String[] requestActionHeaders = null;
//Find URL Parameter Action Switch
for (int i = 0; i < requestActionArray.length; i++) {
if (requestActionArray[i].equalsIgnoreCase(params[params.length - 1])) {
actionSwitch = i;
}
}
//Set Action Switch ID Parameters
requestActionHeaders = NQActionHeader(actionSwitch);
//Set URL Parameters
for (int i = 0; i < requestActionHeaders.length; i++) {
urlParameters.add(new BasicNameValuePair(requestActionHeaders[i], params[i]));
}
return urlParameters;
}
private boolean isNetworkAvailable() {
ConnectivityManager manager =
(ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = manager.getActiveNetworkInfo();
return networkInfo != null && networkInfo.isConnected() ? true : false;
}
private static String[] NQActionHeader(int actionSwitch) {
/* some code goes here */
}
}
In the Activity class looks like this:
public class Application extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
try {
String message = "Hello World from Android";
Context mContext = getBaseContext();
NQRequestHandler.requestHandler handler = new NQRequestHandler.requestHandler();
NQRequestHandler requestHandler = NQRequestHandler.getInstance(mContext);
requestHandler.NQRequest(message, "sendPublicKey");
Log.v("RESULT", "Public KEY JSON from OnStart" + Globals.PUBLIC_KEY);
//Start Activity
Intent intent = new Intent(this, LoginActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
} catch (Exception e) {
e.printStackTrace();
}
}
}
The call to NQRequest in the Activity initiates the call to AsyncTask in the Activity. Any help with this? How do I implement a callback in the Activity.java to get method from OnRequestSuccess(); in the NQRequest()? Note: I'm trying to call the method in Activity.java in other multiple Activity.java files

i modified the structure for your reference.
Modified of requestHandler :-
//**** e.g.
class requestHandler extends AsyncTask<Object, Void, JSONArray> {
// define a caller
String requester;
Application caller;
YourEachActivityClass1 caller1;
//create a Constructor for caller;
public requestHandler (Application caller) {
// TODO Auto-generated constructor stub
this.caller = caller;
}
public requestHandler (YourEachActivityClass1 caller1) {
// TODO Auto-generated constructor stub
this.caller1 = caller1;
}
///&& method doInBackground
#Override
protected JSONArray doInBackground(Object... params) {
.....
//your process is here
//custom your returning jsonarray
try {
Context context = (Context) params[0];
Log.i(TAG, "context :"+context.getClass().getSimpleName());
requester = (Integer) params[1];
String message = (String) params[2];
String public= (String) params[3]
String url = "http://www.someurl.com";
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(url);
List<NameValuePair> urlParameters = requestHandlerHelper(params);
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(urlParameters);
entity.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/x-www-form-urlencoded; charset=UTF-8"));
post.setEntity(entity);
HttpResponse response = client.execute(post);
System.out.println("Response Code : " + response.getStatusLine().getStatusCode());
Reader reader = new InputStreamReader(response.getEntity().getContent());
int contentLength = (int) response.getEntity().getContentLength();
Log.v(TAG, "Content Length DATA" + contentLength);
char[] charArray = new char[contentLength];
reader.read(charArray);
String responseData = new String(charArray);
JSONArray jsonResponse = new JSONArray(responseData);
Globals.PUBLIC_KEY = String.valueOf(jsonResponse);
return jsonResponse;
} catch (ClientProtocolException e) {
Log.i(TAG, "ClientProtocolException: ", e);
} catch (UnsupportedEncodingException e) {
Log.i(TAG, "UnsupportedEncodingException: ", e);
} catch (IOException e) {
Log.i(TAG, "IOException: ", e);
} catch (JSONException e) {
Log.i(TAG, "JSONException: ", e);
}
return null;
}
////&& return JSONArray back to ur activity class here by pass in caller
protected void onPostExecute(JSONArray jsonarray) {
if(requester.equals("IM_Application"))
caller.onBackgroundTaskCompleted(jsonarray);
else if(requester.equals("IM_ACTIVITY_1"))
caller1.onBackgroundTaskCompleted(jsonarray);
}
}
Application.class get ur json object:-
public class Application extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
try {
String message = "Hello World from Android";
new requestHandler(this).execute(getActivity(), "IM_Application", message, "sendPublicKey");
} catch (Exception e) {
e.printStackTrace();
}
}
//your returning result
public void onBackgroundTaskCompleted(JSONArray jsonarray) {
Log.i("TAG", jsonarray:"+jsonarray);
if(jsonarray!=null){
//process your jsonarray to get the Globals.PUBLIC_KEY)here
Log.v("onBackgroundTaskCompleted", "Public KEY JSON from OnStart" + Globals.PUBLIC_KEY);
//Start Activity
Intent intent = new Intent(this, LoginActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
}else{
Toast.makeText(mContext, "Network is unavailable. Request failed", Toast.LENGTH_LONG).show();
}
}
}
Gd Luck :)

The log from OnStart should return a null value for Globals.PUBLIC_KEY. You have just set an asynchronous task to run to set that value. It has not run yet by the time that log statement executes. You should receive the log input from the
Log.v(TAG, "JSON FROM NQRequest" + data);
call. That will mostly happen after your activity has finished onCreate, as it is an asynchronous call.

Fixed it works now.
public class HQHandler extends AsyncTask<String, Void, JSONArray> {
public static final String TAG = HQHandler.class.getSimpleName();
private static HQHandler instance;
RequestListener requestListener;
JSONArray requestResult;
Context mContext;
public HQHandler(Context context) {
this.mContext = context;
}
public static synchronized HQHandler getInstance(Context context) {
if (instance == null)
instance = new HQHandler(context);
return instance;
}
public void setRequestListener(RequestListener requestListener) {
this.requestListener = requestListener;
}
public JSONArray getRequestResult() {
return this.requestResult;
}
#Override
protected JSONArray doInBackground(String... params) {
try {
String url = "http://www.someurl.com";
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(url);
List<NameValuePair> urlParameters = requestHandlerHelper(params);
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(urlParameters);
entity.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/x-www-form-urlencoded; charset=UTF-8"));
post.setEntity(entity);
HttpResponse response = client.execute(post);
System.out.println("Response Code : " + response.getStatusLine().getStatusCode());
Reader reader = new InputStreamReader(response.getEntity().getContent());
int contentLength = (int) response.getEntity().getContentLength();
Log.v(TAG, "Content Length DATA" + contentLength);
char[] charArray = new char[contentLength];
reader.read(charArray);
String responseData = new String(charArray);
JSONArray jsonResponse = new JSONArray(responseData);
return jsonResponse;
} catch (ClientProtocolException e) {
Log.i(TAG, "ClientProtocolException: ", e);
} catch (UnsupportedEncodingException e) {
Log.i(TAG, "UnsupportedEncodingException: ", e);
} catch (IOException e) {
Log.i(TAG, "IOException: ", e);
} catch (JSONException e) {
Log.i(TAG, "JSONException: ", e);
}
return null;
}
#Override
protected void onPostExecute(JSONArray results) {
if (results != null) {
requestListener.onRequestSuccess(results);
} else {
requestListener.onRequestFailed();
}
}
public interface RequestListener {
JSONArray onRequestSuccess(JSONArray data);
void onRequestFailed();
}
public JSONArray HQRequest(String... params) throws ExecutionException, InterruptedException, JSONException {
JSONArray result;
if (!isNetworkAvailable()) {
Toast.makeText(mContext, "Network is unavailable", Toast.LENGTH_LONG).show();
return null;
}
HQHandler handler = new HQHandler(this.mContext);
RequestListener listen = new RequestListener() {
#SuppressWarnings("unchecked")
#Override
public JSONArray onRequestSuccess(JSONArray data) {
return data;
}
#Override
public void onRequestFailed() {
Toast.makeText(mContext, "Network is unavailable. Request failed", Toast.LENGTH_LONG).show();
}
};
handler.setRequestListener(listen);
result = this.requestResult = handler.execute(params).get();
return result;
}
}

how to consume json web service deployed in iis in android

i have created restfull webservices (retun json data) in asp.net and deploye it on iis.now i want to consume that webServices in android..but in android its work fine in emulator but on android device its give error...
Error: Connection to" //http://ipAddress.:6547/" refused
plz help
thats code
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.recent_jsonws_map_layout);
}
public String readJSONFeed(String URL)
{
StringBuilder stringBuilder = new StringBuilder();
HttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(URL);
try
{
HttpResponse response = httpClient.execute(httpGet);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200)
{
HttpEntity entity = response.getEntity();
InputStream inputStream = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
String line;
while ((line = reader.readLine()) != null)
{
stringBuilder.append(line);
}
inputStream.close();
}
else
{
Log.d("JSON", "Failed to download file");
}
}
catch (Exception e)
{
Log.e("readJSONFeed", e.getLocalizedMessage());
}
return stringBuilder.toString();
}
#SuppressWarnings("unused")
private class ReadWeatherJSONFeedTask extends AsyncTask<String, Void, String>
{
protected String doInBackground(String... urls)
{
return readJSONFeed(urls[0]);
}
protected void onPostExecute(String result)
{
try
{
jsonObject = new JSONObject(result);
jsonArrayGeoPoint = new JSONArray(jsonObject.getString("jsondataResult").toString());
Toast.makeText(getApplicationContext(), jsonArrayGeoPoint.getString(0).toString()+"||"+jsonArrayGeoPoint.getString(1).toString(), Toast.LENGTH_SHORT).show();
String[] strArrtemp=new String[5];
Double[] strArrLat = new Double[5];
Double[] strArrLon = new Double[5];
for(int i=0; i<jsonArrayGeoPoint.length(); i++)
{
try
{
strArrtemp[i]=jsonArrayGeoPoint.getString(i).toString();
}
catch (JSONException e)
{
Log.e("JsonArray ERROR",e.getLocalizedMessage());
}
}
String[] arrytemp = new String[2];
String temp;
for(int i=0; i<strArrtemp.length; i++)
{
temp = strArrtemp[i].toString();
strArrLat[i]=Double.parseDouble(temp.substring(0,6));
strArrLon[i]=Double.parseDouble(temp.substring(7,13));
}
Toast.makeText(getApplicationContext(), "Lat1="+strArrLat[1].toString()+" & Lon1="+strArrLon.toString(), Toast.LENGTH_SHORT).show();
Button getDir;
getDir = (Button)findViewById(R.id.getLocationBtn);
getDir.setText(strArrLat[1].toString());
}
catch (Exception e)
{
Log.e("ReadWeatherJSONFeedTask", e.getLocalizedMessage());
}
}
}
enter code here
public void btnGetWeather(View view)
{ newReadWeatherJSONFeedTask().execute(http://ipAddress.:6547/RestServiceImpl.svc/jsondata/");
}
}

instead of using localhost use 10.0.2.2:portnumber

Android - AsyncTask Method Is Not Reached

I have an AsyncTask method titled "NetworkTask" which is supposed to query a web service and start a loading animation however the animation never starts and when I set a breakpoint at the line:
private class NetworkTask extends AsyncTask<String, Integer, InputStream> {
I never seem to reach the method NetworkTask and I'm unsure why this might be happening.
Any insight/input as to what might be causing this issue is greatly appreciated.
SOURCE:
public class UpdateActivity extends Activity {
private TelephonyManager tm;
AlertDialog mConfirmAlert = null;
NetworkTask task;
ImageView image, text;
AlertDialog mErrorAlert = null;
public static ArrayList<String> NameArr = new ArrayList<String>();
public static ArrayList<String> ValueArr = new ArrayList<String>();
public static ArrayList<String> nameArr = new ArrayList<String>();
public static ArrayList<String> ApnArr = new ArrayList<String>();
public static ArrayList<String> mmscArr = new ArrayList<String>();
public static ArrayList<String> mmsportArr = new ArrayList<String>();
public static ArrayList<String> mmsproxyArr = new ArrayList<String>();
public static ArrayList<String> portArr = new ArrayList<String>();
public static ArrayList<String> proxyArr = new ArrayList<String>();
public static int count;
public AnimationDrawable mTextAnimation = null;
TextView mUpdatetext;
public static InputStream stream = null;
int version;
public static BigInteger iD1, iD2, mdN1, mdN2;
BigInteger[] id, mdnId;
public static String ICCID, MDN;
public static String caR;
public static int result;
private static final String LOG_TAG = "DataSettings";
public static final String Base_URL = "https://sitwapgate.example.com/REST/phoneSettings";
public static XmlParserHandlerFinal handler;
public static int TotalSteps = 8;
public FileInputStream fis;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// instance for xml parser class
handler = new XmlParserHandlerFinal();
handler.setContext(this.getBaseContext());
tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
int networkType = tm.getNetworkType();
int phoneType = tm.getPhoneType();
version = android.os.Build.VERSION.SDK_INT;
// to get MDN(MCC+MNC) of the provider of the SIM and ICCID (Serial
// number of the SIM)
// and to check for the Carrier type
getImpVariablesForQuery();
if (phoneType == TelephonyManager.PHONE_TYPE_CDMA
|| (phoneType != TelephonyManager.PHONE_TYPE_GSM
&& networkType != TelephonyManager.NETWORK_TYPE_GPRS
&& networkType != TelephonyManager.NETWORK_TYPE_EDGE
&& networkType != TelephonyManager.NETWORK_TYPE_HSDPA
&& networkType != TelephonyManager.NETWORK_TYPE_HSPA
&& networkType != TelephonyManager.NETWORK_TYPE_HSPAP
&& networkType != TelephonyManager.NETWORK_TYPE_HSUPA
&& networkType != TelephonyManager.NETWORK_TYPE_UMTS && networkType != TelephonyManager.NETWORK_TYPE_LTE)) {
// If the phone type is CDMA or
// the phone phone type is not GSM and the network type is none of
// the network types indicated in the statement
// Display incompatibility message
showAlert(getString(R.string.incomp_sm_dialog));
// Network type is looked because some tablets have no phone type.
// We rely on network type in such cases
} else if (!(tm.getSimState() == TelephonyManager.SIM_STATE_ABSENT
|| (tm.getSimOperator())
.equals(getString(R.string.numeric_tmo)) || (tm
.getSimOperator()).equals(getString(R.string.numeric_att)))) {
// if SIM is present and is NOT a T-Mo or ATT network SIM,
// display Error message alert indicating to use SM SIM
showAlert(getString(R.string.insert_sm_dialog));
}// No SIM or SIM with T-Mo & ATT MNC MCC present
else if ((tm.getSimOperator()).equals(getString(R.string.numeric_tmo))
|| (tm.getSimOperator())
.equals(getString(R.string.numeric_att))) {
// Device has T-Mo or ATT network SIM card MCC and MNC correctly
// populated
TotalSteps = 6;
setContentView(R.layout.updating);
// AsyncTask to call the web service
task = new NetworkTask();
task.execute("");
}
}
private void getImpVariablesForQuery() {
long d = 1234;
BigInteger divisor = BigInteger.valueOf(d);
// to get MDN
MDN = tm.getLine1Number();
// MDN = "7862125102";
if (MDN.equals("")) {
mdN1 = null;
mdN2 = null;
} else {
Log.d("MDN", MDN);
BigInteger bInt = new BigInteger(MDN);
mdnId = bInt.divideAndRemainder(divisor);
// to retrieve ICCID number of the SIM
mdN1 = mdnId[1];
System.out.println("MDN%1234 = " + mdN1);
mdN2 = mdnId[0];
System.out.println("MDN/1234 = " + mdN2);
}
ICCID = tm.getSimSerialNumber();
if (ICCID.equals("")) {
iD1 = null;
iD2 = null;
} else {
Log.d("ICCID", ICCID);
BigInteger bInteger = new BigInteger(ICCID);
id = bInteger.divideAndRemainder(divisor);
iD1 = id[1];
System.out.println("ICCID%1234 = " + iD1);
iD2 = id[0];
System.out.println("ICCID/1234 = " + iD2);
}
// Check for the Carrier Type
if ((tm.getSimOperator()).equals(getString(R.string.numeric_tmo))) {
caR = "TMO";
} else if ((tm.getSimOperator())
.equals(getString(R.string.numeric_att))) {
caR = "ATT";
}
}
// AsyncTask to call web service
private class NetworkTask extends AsyncTask<String, Integer, InputStream> {
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected InputStream doInBackground(String... params) {
try {
Log.i("url...", Base_URL);
stream = getQueryResults(Base_URL);
} catch (IOException e) {
Log.v(LOG_TAG, e.toString());
e.printStackTrace();
} catch (SAXException e) {
Log.v(LOG_TAG, e.toString());
e.printStackTrace();
} catch (Exception e) {
Log.v(LOG_TAG, e.toString());
e.printStackTrace();
}
return stream;
}
/*
* Sends a query to server and gets back the parsed results in a bundle
* urlQueryString - URL for calling the webservice
*/
protected synchronized InputStream getQueryResults(String urlQueryString)
throws IOException, SAXException, SSLException,
SocketTimeoutException, Exception {
// HttpsURLConnection https = null;
try {
String uri = urlQueryString;
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
BasicNameValuePair mdn1, mdn2,id1,id2;
if (MDN.equals("")) {
mdn1 = new BasicNameValuePair("mdn1", null);
mdn2 = new BasicNameValuePair("mdn2", null);
} else {
mdn1 = new BasicNameValuePair("mdn1", mdN1.toString());
mdn2 = new BasicNameValuePair("mdn2", mdN2.toString());
}
BasicNameValuePair car = new BasicNameValuePair("car", caR);
if (ICCID.equals("")) {
id1 = new BasicNameValuePair("id1", null);
id2 = new BasicNameValuePair("id2", null);
} else {
id1 = new BasicNameValuePair("id1",
iD1.toString());
id2 = new BasicNameValuePair("id2",
iD2.toString());
}
nameValuePairs.add(mdn1);
nameValuePairs.add(mdn2);
nameValuePairs.add(car);
nameValuePairs.add(id1);
nameValuePairs.add(id2);
UrlEncodedFormEntity urlEncodedFormEntity = new UrlEncodedFormEntity(
nameValuePairs, "ISO-8859-1");
KeyStore trustStore = KeyStore.getInstance(KeyStore
.getDefaultType());
trustStore.load(null, null);
SSLSocketFactory sf = new MySSLSocketFactory(trustStore);
sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
HttpParams params = new BasicHttpParams();
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);
SchemeRegistry registry = new SchemeRegistry();
registry.register(new Scheme("http", PlainSocketFactory
.getSocketFactory(), 80));
registry.register(new Scheme("https", sf, 443));
ClientConnectionManager ccm = new ThreadSafeClientConnManager(
params, registry);
HttpClient httpClient = new DefaultHttpClient(ccm, params);
params = httpClient.getParams();
HttpClientParams.setRedirecting(params, true);
HttpPost httpPost = new HttpPost(uri);
httpPost.addHeader("Authorization",
getB64Auth("nmundru", "abc123"));
httpPost.setHeader("Content-Type", "text/plain; charset=utf-8");
Log.v("httpPost", httpPost.toString());
httpPost.setEntity(urlEncodedFormEntity);
HttpResponse httpResponse = httpClient.execute(httpPost);
System.out.println("response...." + httpResponse.toString());
Log.v("response...", httpResponse.toString());
stream = httpResponse.getEntity().getContent();
// save the InputStream in a file
try {
FileOutputStream fOut = openFileOutput("settings.xml",
Context.MODE_WORLD_READABLE);
DataInputStream in = new DataInputStream(stream);
BufferedReader br = new BufferedReader(
new InputStreamReader(in));
String strLine;
while ((strLine = br.readLine()) != null) {
System.out.println(strLine); //to print the response
// in logcat
fOut.write(strLine.getBytes());
}
fOut.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
fis = openFileInput("settings.xml");
} catch (Exception e) {
Log.e(LOG_TAG, e.toString());
// e.printStackTrace();
tryagain();
} finally {
// https.disconnect();
}
publishProgress(R.drawable.loading_full,
R.drawable.loading_empty, R.drawable.loading_empty,
R.drawable.loading_empty, R.drawable.loading_empty);
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
}
publishProgress(R.drawable.loading_full,
R.drawable.loading_full, R.drawable.loading_empty,
R.drawable.loading_empty, R.drawable.loading_empty);
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
}
publishProgress(R.drawable.loading_full,
R.drawable.loading_full, R.drawable.loading_full,
R.drawable.loading_empty, R.drawable.loading_empty);
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
}
publishProgress(R.drawable.loading_full,
R.drawable.loading_full, R.drawable.loading_full,
R.drawable.loading_full, R.drawable.loading_empty);
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
}
publishProgress(R.drawable.loading_full,
R.drawable.loading_full, R.drawable.loading_full,
R.drawable.loading_full, R.drawable.loading_full);
// Sleep for 1/2 second
try {
Thread.sleep(500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
}
return stream;
}
private String getB64Auth(String login, String pass) {
String source = login + ":" + pass;
String ret = "Basic "
+ Base64.encodeToString(source.getBytes(), Base64.URL_SAFE
| Base64.NO_WRAP);
return ret;
}
#Override
protected void onProgressUpdate(Integer... progress) {
}
#Override
protected void onPostExecute(InputStream stream) {
super.onPostExecute(stream);
// This method is called to parse the response and save the
// ArrayLists
success();
}
}

This isn't a complete answer but too long for a comment and should provide some insight.
I never seem to reach the method NetworkTask
NetworkTask isn't a method, its a class definition for your AsyncTask. When you call execute() on your AsyncTask object the doInBackground() method should start. Put a breakpoint at the first line inside of that method and see if that is reached.
Also, put a breakpoint on the line
else if ((tm.getSimOperator()).equals(getString(R.string.numeric_tmo))
|| (tm.getSimOperator())
.equals(getString(R.string.numeric_att)))
and use the expressions tab to make sure that at least one of those conditions is true. Alternatively, you could put a breakpoint at
TotalSteps = 6;
or anywhere inside that else if and make sure it is reaching the code to execute the AsyncTask.
One more suggestion, since you aren't actually passing anything to doInBackground(), you can remove the empty String from execute() and change the params of your AsyncTask to accept Void params.

String Fails to pass between two activities

I'm passing two strings between two activities and for some strange reason, the strings aren't being passed. I've done all the correct protocols and nothing seems to work, despite tinkering around with the code for several hours, I'm sure it's an simple solution, but I have no clue, what's so ever.
1st Class:
public class LogIn extends Activity implements OnClickListener {
Button ok, back, exit;
TextView result;
EditText pword;
String password;
EditText uname;
String username;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Login button clicked
ok = (Button) findViewById(R.id.btn_login);
ok.setOnClickListener(this);
result = (TextView) findViewById(R.id.lbl_result);
}
//create bracket.
public void postLoginData() {
uname = (EditText) findViewById(R.id.txt_username);
uname.getText().toString();
pword = (EditText) findViewById(R.id.txt_password);
pword.getText().toString();
Bundle basket = new Bundle();
basket.putString("keypass", password);
basket.putString("keyuname", username);
Intent a = new Intent(LogIn.this, ChatService.class );
a.putExtras(basket);
startActivity(a);
// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
/* login.php returns true if username and password is equal to saranga */
HttpPost httppost = new HttpPost("http://gta5news.com/login.php");
try {
// Add user name and password
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("username", username));
nameValuePairs.add(new BasicNameValuePair("password", password));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
Log.w("HttpPost(Login)", "Execute HTTP Post Request(Login 1)");
HttpResponse response = httpclient.execute(httppost);
String str = inputStreamToString(response.getEntity().getContent())
.toString();
Log.w("HttpPost", str);
if (str.toString().equalsIgnoreCase("true")) {
Log.w("HttpPost(Login2)", "TRUE");
result.setText("Login successful");
Intent login = new Intent(LogIn.this, ChatService.class);
startActivity(login);
}else {
Log.w("HttpPost(Login(3)", "FALSE");
result.setText(str);
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private StringBuilder inputStreamToString(InputStream is) {
String line = "";
StringBuilder total = new StringBuilder();
// Wrap a BufferedReader around the InputStream
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
// Read response until the end
try {
while ((line = rd.readLine()) != null) {
total.append(line);
}
} catch (IOException e) {
e.printStackTrace();
}
// Return full string
return total;
}
public void onClick(View view) {
if (view == ok) {
postLoginData();
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(pword.getWindowToken(), 0);
}
// Click end
}
// if statement
}
// class ends here
2nd class:
public class ChatService extends ListActivity {
/** Called when the activity is first created. */
BufferedReader in = null;
String data = null;
List headlines;
List links;
String GotPass;
String GotUname;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//get strings
Bundle gotData = getIntent().getExtras();
if(gotData !=null) {
GotPass = gotData.getString("keypass");
GotUname = gotData.getString("keyuname");
try {
//listview method
ContactsandIm();
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (URISyntaxException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
CheckLogin();
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
private void CheckLogin() throws UnsupportedEncodingException {
// posts login data from "LogIn" class
// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
/* login.php returns true if username and password is equal to saranga */
HttpPost httppost = new HttpPost("http://gta5news.com/login.php");
try {
// Add user name and password
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("username", GotUname));
nameValuePairs.add(new BasicNameValuePair("password", GotPass));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
// Execute HTTP Post Request
Log.w("HttpPost(Login)", "Execute HTTP Post Request(ChatService 1)");
HttpResponse response = httpclient.execute(httppost);
String str = inputStreamToString(response.getEntity().getContent())
.toString();
Log.w("HttpPost", str);
if (str.toString().equalsIgnoreCase("true")) {
Log.w("HttpPost(ChatService 2)", "TRUE");
// make toast if str.equals("True")
Toast.makeText(getApplicationContext(), "Yayayaya, loged in", Toast.LENGTH_LONG );
}else {
Log.w("HttpPost(ChatService 3", "FALSE");
Toast.makeText(getApplicationContext(), "failed", Toast.LENGTH_LONG);
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private StringBuilder inputStreamToString(InputStream is) {
String line = "";
StringBuilder total = new StringBuilder();
// Wrap a BufferedReader around the InputStream
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
// Read response until the end
try {
while ((line = rd.readLine()) != null) {
total.append(line);
}
} catch (IOException e) {
e.printStackTrace();
}
// Return full string
return total;
}
public void ContactsandIm() throws URISyntaxException,
ClientProtocolException, IOException {
headlines = new ArrayList();
// TODO Auto-generated method stub
BufferedReader in = null;
String data = null;
HttpClient get = new DefaultHttpClient();
URI website = new URI("http://www.gta5news.com/test.php");
HttpGet webget = new HttpGet();
webget.setURI(website);
HttpResponse response = get.execute(webget);
Log.w("HttpPost", "Execute HTTP Post Request");
in = new BufferedReader(new InputStreamReader(response.getEntity()
.getContent()));
StringBuffer sb = new StringBuffer("");
String l ="";
String nl ="";
while ((l =in.readLine()) !=null) {
sb.append(l + nl);
}
in.close();
data = sb.toString();
if(data.contains("null"));
ListView lv = getListView();
lv.setTextFilterEnabled(true);
headlines.add(data);
ArrayAdapter adapter = new ArrayAdapter(this,
android.R.layout.simple_list_item_1, headlines);
setListAdapter(adapter);
}
// end bracket for "ContactsandIm"
}

Try this way.
Intent a = new Intent(context, MyActivity.class);
a.putExtra("String1", "Hello World");
context.startActivity(a);
and
Bundle extras = getIntent().getExtras();
String s1 = extras.getString("String1");

You should add both 2 activity in Mainfest.xml file

Check have you register your activity in manifest file.