MainActivity :-- package soap_web_services; 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 com.example.web_service_soap.R; import android.app.Activity; import android.os.AsyncTask; 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; import android.widget.Toast; public class MainActivity extends Activity { private final String NAMESPACE = "http://www.w3schools.com/webservices/"; private final String URL = "http://www.w3schools.com/webservices/tempconvert.asmx"; private final String SOAP_ACTION1 = "http://www.w3s...