PASS PARAMETERS TO ASYNC TASK - android-asynctask

Question

i have used httppost to send and retrive the data from the site.but when i run the program i m not getting the required data
package com.example.im3;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.Toast;
public class Homepage extends Activity {
Button login1, login2;
LinearLayout l1;
RelativeLayout r1;
EditText un, pw;
private static final String TAG = "MyActivity";
Toast toast;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_homepage);
login2 = (Button) findViewById(R.id.button1);
login1 = (Button) findViewById(R.id.Login1);
l1 = (LinearLayout) findViewById(R.id.Homepage);
r1 = (RelativeLayout) findViewById(R.id.Loginpage2);
un = (EditText) findViewById(R.id.un);
pw = (EditText) findViewById(R.id.pw);
l1.setVisibility(l1.VISIBLE);
r1.setVisibility(r1.GONE);
login2.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
String s1 = un.getText().toString();
String s2 = pw.getText().toString();
if(s1.matches("")){
Toast.makeText(Homepage.this, "enter something", toast.LENGTH_LONG).show();
}
Log.d(TAG, "second login page");
Abc task = new Abc();
task.execute(s1, s2);
}
});
login1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
l1.setVisibility(v.GONE);
r1.setVisibility(v.VISIBLE);
Log.d(TAG, "home page");
}
});
}
private class Abc extends AsyncTask<String, String, String> {
String s1,s2;
#Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
s1=un.getText().toString();
s2=pw.getText().toString();
String urlParameters = s1,s2;
String request = "https://beta135.hamarisuraksha.com/web/webservice/HamariSurakshaMobile.asmx/getIMSafeAccountInfoOnLogon";
URL url;
try {
url = new URL(request);
HttpURLConnection connection = (HttpURLConnection) url
.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setInstanceFollowRedirects(false);
connection.setRequestMethod("POST");
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded;");// boundary="+CommonFunctions.boundary
connection.setUseCaches(false);
DataOutputStream wr = new DataOutputStream(
connection.getOutputStream());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
int responseCode = connection.getResponseCode();
/*
* System.out.println("\nSending 'POST' request to URL : " +
* url); System.out.println("Post parameters : " +
* urlParameters);
*/
System.out.println("Response Code : " + responseCode);
InputStream errorstream = connection.getErrorStream();
BufferedReader br = null;
if (errorstream == null) {
InputStream inputstream = connection.getInputStream();
br = new BufferedReader(new InputStreamReader(inputstream));
} else {
br = new BufferedReader(new InputStreamReader(errorstream));
}
String response = "";
String nachricht;
while ((nachricht = br.readLine()) != null) {
response += nachricht;
}
// print result
// System.out.println(response.toString());
return response.toString();
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
} catch (ProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return null;
}
}
protected void onPostExecute(String response)
{
// TODO Auto-generated method stub
super.onPostExecute(response);
Log.d(TAG,"on post execute");
Toast.makeText(Homepage.this, "finally", toast.LENGTH_LONG).show();
}
}
}
i have used httppost to send and retrive the data from the site.but when i run the program i m not getting the required data
i want to pass the s1 and s2 paramters to the htp post method.but i m nt getting how to do it

Answer 1

You have your parameters as the params in your doInBackground method here String... params. So you can use them like this:
protected String doInBackground(String... params) {
s1=params[0];
s2=params[1];
//...
}
Instead of:
protected String doInBackground(String... params) {
s1=un.getText().toString();
s2=pw.getText().toString();
//...
}