public class UserLoginTask extends AsyncTask<Void, Void, Boolean>
	{
		String errormessage;
		@Override
		protected void onPreExecute()
		{
			logindialog = ProgressDialog.show(MainLogin.this,"Please wait...", "Logging in...", true);
			logindialog.setCancelable(true);
			logindialog.setOnCancelListener(new OnCancelListener()
			{

				@Override
				public void onCancel(DialogInterface arg0)
				{
					Toast.makeText(getBaseContext(), "login cancelling...", Toast.LENGTH_SHORT).show();
					mAuthTask.cancel(true);
					logindialog.dismiss();
				}

			});
		}
		@Override
		protected Boolean doInBackground(Void... params)
		{

			try
			{
				HttpClient httpclient = new DefaultHttpClient();
				String httpserver = "http://182.71.212.110/mscanner_demo";//"http://http://10.0.2.2:65320/UserDetail/GetIMEIDetails";  //     //       //replace code "http://mscanner.apphb.com";
				SharedPreferences sharedPref = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
				Editor editor = sharedPref.edit();
				editor.putString(getString(R.string.httpserver),httpserver);
				editor.commit();
				//server_validate_IMEI  server_login_url http://localhost:65320/UserDetail/GetIMEIDetails
				//HttpPost httppost = new HttpPost(httpserver+ Constants.server_login_url);
				//List<NameValuePair> params1 = new ArrayList<NameValuePair>();
				//params1.add(new BasicNameValuePair("userId", userid.getText().toString()));
				//params1.add(new BasicNameValuePair("pwd", pswrd.getText().toString()));


				//TelephonyManager telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
		        //String   imsistring = telephonyManager.getSubscriberId();
		        //String imei = telephonyManager.getDeviceId();
								//for imei
				   telephonyInfo = TelephonyInfo.getInstance(getBaseContext());
				   String  imeiSIM11 = telephonyInfo.getImeiSIM1();
				   String  imeiSIM22 = telephonyInfo.getImeiSIM2();
				HttpPost httppost = new HttpPost(httpserver+ Constants.server_validate_IMEI);
				List<NameValuePair> params1 = new ArrayList<NameValuePair>();
				params1.add(new BasicNameValuePair("IMEI1",  imeiSIM11));//911383459371629  imeiSIM11
				params1.add(new BasicNameValuePair("IMEI2", imeiSIM22));//911383459371629   imeiSIM22
				httppost.setEntity(new UrlEncodedFormEntity(params1));

				HttpResponse response = httpclient.execute(httppost);
				HttpEntity entity = response.getEntity();
				BufferedReader in = new BufferedReader(new InputStreamReader(entity.getContent()));
				StringBuilder sb = new StringBuilder();
				String line = null;

				while ((line = in.readLine()) != null)
				{
					sb.append(line + "");
				}

				// Append Server Response To Content String

				Content = sb.toString();

				if(sb.toString().equalsIgnoreCase("USER NOT FOUND")||sb.toString().equalsIgnoreCase("FAIL")||sb.toString().equalsIgnoreCase("DETAILS NOT FOUND"))
				{
					if (sb.toString().equalsIgnoreCase("USER NOT FOUND"))
				{
					errormessage="IMEI no. not registered.";
					return false;
				}
				else if (sb.toString().equalsIgnoreCase("DETAILS NOT FOUND"))
				{
					errormessage="IMEI not found.Contact your IT administrator.";
					return false;
				}
				else if (sb.toString().equalsIgnoreCase("FAIL"))
				{
					errormessage="Technical issue";
					return false;
				}
				}
				else
				{
					JSONArray json = new JSONArray(Content);
					if (json.length() > 0)
					{
						try
						{
							JSONObject c = json.getJSONObject(0);
							//editor.putString(getString(R.string.loginuser),	userid.getText().toString());
							//editor.commit();
							//editor.putString(getString(R.string.loginpassword),pswrd.getText().toString());
							//editor.commit();
							editor.putString(getString(R.string.foldername),"mscanner/new folder");
							editor.commit();
							editor.putString(getString(R.string.directory),"androiddms");
							editor.commit();
							editor.putString(getString(R.string.username),c.getString("FTP_USER"));
							editor.commit();
							editor.putString(getString(R.string.password),c.getString("FTP_PWD"));
							editor.commit();
							editor.putString(getString(R.string.ftpserver),c.getString("FTP_IP"));
							editor.commit();
							editor.putString(getString(R.string.db_ip),c.getString("DATABASE_IP"));// change
							editor.commit();
							editor.putString(getString(R.string.dbuser),c.getString("DATABASE_USER"));
							editor.commit();
							editor.putString(getString(R.string.dbpassword),c.getString("DATABASE_PWD"));
							editor.commit();
							editor.putString(getString(R.string.dbname),c.getString("DATABASE_NAME"));
							editor.commit();
							editor.putString(getString(R.string.circle),c.getString("CIRCLE"));
							editor.commit();
							editor.putString(getString(R.string.dist_code),c.getString("DIST_CODE"));
							editor.commit();
							editor.putString(getString(R.string.IMEI),c.getString("IMEI"));
							editor.commit();
							editor.putString(getString(R.string.ZONE),c.getString("ZONE"));
							editor.commit();
							editor.putString(getString(R.string.retailerID),c.getString("RetID"));
							editor.commit();
							editor.putString(getString(R.string.storageMode),"SD Card");
							editor.commit();
							//sharedPref.getString(context.getResources().getString(R.string.storageMode), "notSet");

							editor.apply();

				/*
				 * There is no need of this
				 *
							HttpPost httppost1 = new HttpPost(httpserver+ Constants.server_uploadlogindata);
							List<NameValuePair> params2 = new ArrayList<NameValuePair>();
							params2.add(new BasicNameValuePair("userId", userid.getText().toString()));
							httppost1.setEntity(new UrlEncodedFormEntity(params2));
							response= httpclient.execute(httppost1);

							entity = response.getEntity();
							in = new BufferedReader(new InputStreamReader(entity.getContent()));
							sb = new StringBuilder();
							line = null;

							while ((line = in.readLine()) != null)
							{
								sb.append(line + "");
							}
				*/

							return true;
						}
						catch (Exception e)
						{
							errormessage=e.getMessage();
							return false;
						}
					}
					else
					{
						errormessage="Invalid Credentials";
					}
				}
			}
			catch (Exception ex)
			{
				errormessage=ex.getMessage();
				return false;
			}
			return false;
		}
		@Override
		protected void onPostExecute(final Boolean success)
		{
			mAuthTask = null;
			if (success)
			{
				logindialog.dismiss();
				Intent backserviceintent = new Intent(getBaseContext(), BackgroundService.class);
				startService(backserviceintent);

				Intent intent = new Intent();
				intent.setClass(MainLogin.this, MainActivity.class);
				startActivity(intent);
				finish();
			}
			else
			{
				logindialog.dismiss();
				toast= Toast.makeText(getApplicationContext(),errormessage, Toast.LENGTH_SHORT);
				toast.setGravity(Gravity.TOP|Gravity.CENTER_HORIZONTAL, 0, 150);
				toast.show();
			}
		}
		@Override
		protected void onCancelled()
		{
			mAuthTask = null;
			logindialog.dismiss();
		}
	}