Question

Hi i developed one login form calling soap webservices.it is success fully worked for me…But now i implement the one part.when my login details are successfully means it is go to next activity.
how is to do..here am facing some difficulties.
the coding part is below.

dis is my webservices java project:

package com.userlogin.ws;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

public class Login {
public String authentication(String userName,String password){

String retrievedUserName = "";
String retrievedPassword = "";
String status = "";
try{

 Class.forName("com.mysql.jdbc.Driver");
 Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/androidlogin","root","");
 PreparedStatement statement =  con.prepareStatement("SELECT * FROM user WHERE username = '"+userName+"'");
 ResultSet result = statement.executeQuery();

 while(result.next()){
retrievedUserName = result.getString("username");
retrievedPassword = result.getString("password");
}

if(retrievedUserName.equals(userName)&&retrievedPassword.equals(password)){
status = "Success!";

 }

 else{
 status = "Login fail!!!";
 }

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

  }

  }

dis is my android side coding part:

package com.androidlogin.ws;

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.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.content.Intent;

public class AndroidLoginExampleActivity extends Activity {
private final String NAMESPACE = "http://ws.userlogin.com";
private final String URL = "http://192.168.1.168:8085/Login/services/Login?wsdl";
private final String SOAP_ACTION = "http://ws.userlogin.com/authentication";
private final String METHOD_NAME = "authentication";
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    Button login = (Button) findViewById(R.id.btn_login);
    login.setOnClickListener(new View.OnClickListener() {

   public void onClick(View arg0) {
   loginAction();

   }
  });
   }

private void loginAction(){
 SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME);

    EditText userName = (EditText) findViewById(R.id.tf_userName);
    String user_Name = userName.getText().toString();
    EditText userPassword = (EditText) findViewById(R.id.tf_password);
    String user_Password = userPassword.getText().toString();

  //Pass value for userName variable of the web service
    PropertyInfo unameProp =new PropertyInfo();
    unameProp.setName("userName");//Define the variable name in the web service method
    unameProp.setValue(user_Name);//set value for userName variable
    unameProp.setType(String.class);//Define the type of the variable
    request.addProperty(unameProp);//Pass properties to the variable

  //Pass value for Password variable of the web service
    PropertyInfo passwordProp =new PropertyInfo();
    passwordProp.setName("password");
    passwordProp.setValue(user_Password);
    passwordProp.setType(String.class);
    request.addProperty(passwordProp);

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

    try{
        androidHttpTransport.call(SOAP_ACTION, envelope);
           SoapPrimitive response = (SoapPrimitive)envelope.getResponse();

           TextView result = (TextView) findViewById(R.id.tv_status);
           result.setText(response.toString());

    }
    catch(Exception e){

    }

    Button registerScreen = (Button) findViewById(R.id.btn_login);

    // Listening to register new account link
    registerScreen.setOnClickListener(new View.OnClickListener() {

        public void onClick(View v) {
            // Switching to Register screen
            Intent i = new Intent(getApplicationContext(), RegisterActivity.class);
            startActivity(i);
        }
      });
   }

   }

Here when am clicked button means it is redirect to next activity..but i wish to need if successful login means it is go to next activity….please where is putting dis intent coding or tell me how is to do…please guide me .

Answer 1

As I understand your question, You have to check the response form your login web service call and make a condition on that base.

If your response contains Success! status then start NewActivity else show Login Failure Dialog or Toast.

For Example:

your logic should goes here for start new Activity,

try{
        androidHttpTransport.call(SOAP_ACTION, envelope);
        SoapPrimitive response = (SoapPrimitive)envelope.getResponse();
        String status = response.toString();

        TextView result = (TextView) findViewById(R.id.tv_status);
        result.setText(response.toString());

    if(status.equals("Success!"))
     {
       Intent i = new Intent(getApplicationContext(), NextActivity.class);
       startActivity(i);    
     }
    else
     {
         // Code for Login failure 
     }
   }
    catch(Exception e){
   }