Call SOAP web service in Android

Web Services:

By using web services, we can transfer data between the electronic devices. If we create web services for one platform and it can be accessible from any of the platform. There are many types of web services. Some of them are,

·                     JSON
·                     SOAP

Soap Web Service:

            Simple Object Access Protocol (SOAP) is a standard protocol specification for message exchange based on XML. Communication between the web service and client happens using XML messages.

Steps To  Invoke Soap Web Service

            1.Download ksoap2-android-assembly-2.5.2-jar-with-dependencies.jar and paste into libs folder.

            2. You can download ksoap2-android-assembly-2.5.2-jar-with dependencies.jar here.

3. Create Android project with name as "MobileAppSecurityCode". Set Main Activity name as "GenerateCodeActivity". This is the code for GenerateCodeActivity.

package com.etr.securitycode;

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

import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class GenerateCodeActivity extends Activity {
private String METHOD_NAME = "CodeGenerate";
private String NAMESPACE = "http://tempuri.org/";
private String 
             SOAP_ACTION =    "http://tempuri.org/IService1/CodeGenerate";
private static final String URL = 
   "http://easprojects.sify.net/MyServices/Service1.svc?wsdl";
Object result;
EditText username, password, code;
Button generate;
NetWorkStatus status;

@Override
protected void onCreate(Bundle savedInstanceState) {
try {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_generate_code);
username = (EditText) findViewById(R.id.editText1);
password = (EditText) findViewById(R.id.editText2);
code = (EditText) findViewById(R.id.editText3);
generate = (Button) findViewById(R.id.button1);
status = new NetWorkStatus(this);
generate.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {
if (status.isConnecting()) {
showAlertDialog(GenerateCodeActivity.this,
"Internet connection",
"You have internet connection");
new Invoke().execute();
} else {
showAlertDialog(GenerateCodeActivity.this,
"No Internet connection",
"You don't have internet connection");
}
}
});

} catch (Exception e) {
Log.v("Exception", Log.getStackTraceString(e));
}
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.generate_code, menu);
return true;
}

public class Invoke extends AsyncTask<Void, Void, Void> {

ProgressDialog dialog;

protected void onPreExecute() {
dialog = new ProgressDialog(GenerateCodeActivity.this);
dialog.setMessage("Please wait...");
dialog.setCancelable(false);
dialog.show();
}

protected Void doInBackground(Void... arg0) {

try {
SoapObject 
           request = new 
             SoapObject(NAMESPACE,    METHOD_NAME);
request.
             addProperty("userName",   username.getText().toString());
request.
             addProperty("password", password.getText().toString());
SoapSerializationEnvelope envelope = 
       new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.dotNet = true;
envelope.setOutputSoapObject(request);
HttpTransportSE androidHttpTransport = 
                                                                         new HttpTransportSE(URL);
androidHttpTransport.call(SOAP_ACTION, envelope);
result = envelope.getResponse();
} catch (Exception e1) {
Log.v("JSONCall Exception", Log.getStackTraceString(e1));
}
return null;
}

protected void onPostExecute(Void name) {
username.setText("");
password.setText("");
code.setText(result.toString());
dialog.dismiss();
}

}

public void showAlertDialog(Context context, String title, String msg) {
AlertDialog.Builder builder = new AlertDialog.Builder(
GenerateCodeActivity.this);
builder.setTitle(title).setMessage(msg).setCancelable(false)
.setPositiveButton("OK", 
                                    new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
}

}

4. You can get URL and soapAction from below screenshot


5. Create "Network Status" class. It will check the status of your network       connection.

package com.etr.securitycode;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

public class NetWorkStatus {
private Context _context;

public NetWorkStatus(Context context) {
this._context = context;
}

public boolean isConnecting() {
ConnectivityManager connectivity = (ConnectivityManager) _context
.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null) {
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null) {
for (int i = 0; i < info.length; i++) {
if (info[i].getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
}
}
return false;
}

}

          6. Add following permission in manifest file  


<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE">
</uses-permission>

7. This is code for activity_generate_code.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".GenerateCodeActivity" >

    <EditText
        android:id="@+id/editText1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="58dp"
        android:background="@drawable/shapes"
        android:ems="10"
        android:hint="@string/u_name"
        android:inputType="textPersonName"
        android:minHeight="50dp"
        android:paddingLeft="10dp"
        android:textColor="@android:color/white" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/editText3"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="51dp"
        android:background="#0072c6"
        android:paddingLeft="10dp"
        android:paddingRight="10dp"
        android:text="@string/g_code"
        android:textColor="@android:color/white" />

    <EditText
        android:id="@+id/editText2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/editText1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="40dp"
        android:background="@drawable/shapes"
        android:ems="10"
        android:hint="@string/password"
        android:inputType="textPassword"
        android:minHeight="50dp"
        android:paddingLeft="10dp"
        android:textColor="@android:color/white" />

    <EditText
        android:id="@+id/editText3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/editText2"
        android:layout_alignRight="@+id/editText2"
        android:layout_below="@+id/editText2"
        android:layout_marginTop="46dp"
        android:background="@drawable/shapes"
        android:editable="false"
        android:ems="10"
        android:minHeight="50dp"
        android:paddingLeft="10dp"
        android:textColor="@android:color/white" >

        <requestFocus />
    </EditText>

</RelativeLayout>

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