使用SOAP API的android magento客户登录(身份验证)

我尝试登录(认证)magento客户时遇到问题.我无法找到使用电子邮件和密码登录客户的正确方法.那么,你能告诉我如何使用SOAP API在magento商店中进行身份验证或登录客户.
我试过这个代码如下所示

env.dotNet = false;
            env.xsd = SoapserializationEnvelope.XSD;
            env.enc = SoapserializationEnvelope.ENc;

            SoapObject request = new SoapObject(NAMESPACE,"login");

            request.addProperty("username","xyz");
            request.addProperty("apiKey","xyz");

            env.setOutputSoapObject(request);

            httpTransportSE androidhttpTransport = new httpTransportSE(URL);
            androidhttpTransport.debug = true;
            androidhttpTransport.call("",env);
            Object result = env.getResponse();

            Log.d("sessionId",result.toString());

            // making call to get list of customers

            String sessionId = result.toString();
            request = new SoapObject(NAMESPACE,"customerCustomerInfo");
            request.addProperty("sessionId",sessionId);
            request.addProperty("customerId","2032");
            request.addProperty("email","abc@def.com");
            request.addProperty("password","password");


            env.setOutputSoapObject(request);
            androidhttpTransport.call(SOAP_ACTION,env);
            androidhttpTransport.debug = true;
            result = env.getResponse();

            Log.d("Customer List",result.toString());

}

但它没有帮助我,所以有任何人可以解决我的问题.

谢谢….