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Posted by Jack - - 21 comments


Android – Accessing Webservices using SOAP Example

Source main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Celsius to Farenheit" />

    <EditText
        android:id="@+id/editText1"
        android:layout_width=" fill_parent"
        android:layout_height="wrap_content"
        android:numeric="integer"
        android:singleLine="true" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Convert to Farenheit" />


    <TextView
        android:id="@+id/tv_result"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="" />

</LinearLayout>

Source WebserviceActivity.java

package com.webserviceexample;

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.PropertyInfo;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class WebserviceActivity extends Activity {

            private final String NAMESPACE = "http://tempuri.org/";
            private final String URL = "http://www.w3schools.com/webservices/tempconvert.asmx";
            private final String SOAP_ACTION = "http://tempuri.org/CelsiusToFahrenheit";
            private final String METHOD_NAME = "CelsiusToFahrenheit";

            Button b;

            TextView tv;

            EditText et;

            public void onCreate(Bundle savedInstanceState) {
                        super.onCreate(savedInstanceState);
                        setContentView(R.layout.main);

                        et = (EditText) findViewById(R.id.editText1);

                        tv = (TextView) findViewById(R.id.tv_result);

                        b = (Button) findViewById(R.id.button1);

                        b.setOnClickListener(new OnClickListener() {
                                    public void onClick(View v) {

                                                String result = getFahrenheit(et.getText().toString());

                                                tv.setText(result+"° F");
                                    }
                        });

            }

            public String getFahrenheit(String celsius) {

                        SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

                        PropertyInfo celsiusPI = new PropertyInfo();
                        celsiusPI.setName("Celsius");
                        celsiusPI.setValue(celsius);
                        celsiusPI.setType(double.class);
                        request.addProperty(celsiusPI);

                        SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(
                                                SoapEnvelope.VER11);
                        envelope.dotNet = true;
                        envelope.setOutputSoapObject(request);
                        HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);

                        try {
                                    androidHttpTransport.call(SOAP_ACTION, envelope);
                                    SoapPrimitive response = (SoapPrimitive) envelope.getResponse();
                                    Log.i("Webservice Output", response.toString());

                                    return response.toString();

                        } catch (Exception e) {
                                    e.printStackTrace();
                        }

                        return null;
            }
}

Note:
·         Add Internet Permission in your AndroidManifest.xml file.
·         Download ksoap2.jar and add to buildpath.

The output will be