i have this code running on android studio:
MainActivity.java
package myname.company.com.soap__03;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
public class MainActivity extends AppCompatActivity {
    private static HashMap<String, String> mHeaders = new HashMap<>();
    static {
        mHeaders.put("Accept-Encoding", "gzip,deflate");
        mHeaders.put("Content-Type", "application/soap+xml");
        mHeaders.put("Host", "server:port");
        mHeaders.put("Connection", "Keep-Alive");
        mHeaders.put("User-Agent", "AndroidApp");
        // mHeaders.put("Authorization", "Basic Q2xpZW50NTkzMzppMjR3s2U="); // optional
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        try {
            Button openButton = (Button) findViewById(R.id.open);
            openButton.setOnClickListener(new View.OnClickListener() {
                public void onClick(View v) {
                    try {
                        receiveCurrentShipments("WSDL URL");
                    } catch (Exception ex) {
                        ex.printStackTrace();
                    }
                }
            });
        }catch(Exception e) {
            e.printStackTrace();
        }
    }
    public final static InputStream receiveCurrentShipments(String stringUrlShipments) {
        int status = 0;
        String xmlstring = "<soapenv:Envelope xmlns:soapenv=\"http://someurl\" "+
                "xmlns:soap=\"someurl\" "+
                "xmlns:gen=\"http://someurl\"> "+
        "<soapenv:Header> "+
        "<auth:EventID xmlns:auth='http://someurl'>3000</auth:EventID> "+
        "</soapenv:Header> "+
        "<soapenv:Body> "+
        "<gen:getGenericResult> "+
        "<Request> "+
        "<dataItem> "+
        "<name>Username</name> "+
        "<type>String</type> "+
        "<value>usernamehere</value> "+
        "</dataItem> "+
        "<dataItem> "+
        "<name>Password</name> "+
        "<type>String</type> "+
        "<value>passwordhere</value> "+
        "</dataItem> "+
        "</Request> "+
        "</gen:getGenericResult> "+
        "</soapenv:Body> "+
        "</soapenv:Envelope>";
       // StringBuffer chaine = new StringBuffer("");
        HttpURLConnection connection = null;
        try {
            URL url = new URL(stringUrlShipments);
            connection = (HttpURLConnection) url.openConnection();
            connection.setRequestProperty("Content-Length", xmlstring.getBytes().length + "");
            connection.setRequestProperty("SOAPAction", "http://NAMESPACE\METHOD_NAME");
            for (Map.Entry<String, String> entry : mHeaders.entrySet()) {
                String key = entry.getKey();
                String value = entry.getValue();
                connection.setRequestProperty(key, value);
            }
            connection.setRequestMethod("POST");
            connection.setDoInput(true);
            OutputStream outputStream = connection.getOutputStream();
            outputStream.write(xmlstring.getBytes("UTF-8"));
            outputStream.close();
            connection.connect();
            status = connection.getResponseCode();
        } catch (ProtocolException e) {
            e.printStackTrace();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            Log.i("HTTP Client", "HTTP status code : " + status);
        }
        InputStream inputStream = null;
        try {
            inputStream = connection.getInputStream();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return inputStream;
    }
}
Activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff"
    android:orientation="vertical"
    android:padding="16dp">
    <Button
        android:id="@+id/open"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:background="@color/colorPrimaryDark"
        android:elevation="4dp"
        android:paddingLeft="70dp"
        android:paddingRight="70dp"
        android:text="Soap Call"
        android:textColor="#fff" />
</LinearLayout>
below is my output:
02/28 14:33:49: Launching app Cold swapped changes. $ adb shell am start -n "mokhethea.vodacom.com.soap__03/myname.company.com.soap__03.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER Connected to process 30654 on device vodafone-vfd_500-TK8HFQ7PYHNNNBCE I/InstantRun: Instant Run Runtime started. Android package is myname.company.com.soap__03, real application class is null. E/MultiWindowProxy: getServiceInstance failed! D/libc-netbsd: [getaddrinfo]: hostname="WSDL URL and Port"; servname=(null); netid=0; mark=0 D/libc-netbsd: [getaddrinfo]: ai_addrlen=0; ai_canonname=(null); ai_flags=4; ai_family=0 D/libc-netbsd: [getaddrinfo]: hostname="WSDL URL and Port"; servname=(null); netid=0; mark=0 D/libc-netbsd: [getaddrinfo]: ai_addrlen=0; ai_canonname=(null); ai_flags=4; ai_family=0 I/HTTP Client: HTTP status code : 0
sample code was extracted from: Владимир Лапенков article: How to call a SOAP web service on Android
anyone can tell where i am getting wrong/ rather provide a working example..?
 
     
    