When we try to login again or reopen the app, it throws error "The application identifier can not be changed once set"

[Former Member]

In the andriod SUP sample demo, i have added a login page where the user has to give the correct login credentials to connect to the SUP server. When the wrong credentials are given , it takes me back to login page. Now when i try to login with valid user credentials, it shows the following error:

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.infy.cust/com.infy.cust.SUP101SampleActivity}: com.sybase.mobile.ApplicationRuntimeException: The value does not match the current set value. The application identifier can not be changed once set.

I hope this error occurs since the validation of user credentials happens after setting the applicationContext & applicationIdentifier.

So, even when i try to login again with correct user credentials, it throws this error.

Kindly Help me in Solving this issue...

Thanks in Advance...!

// getting the user credentials from Login Page
USERNAME=getIntent().getExtras().getString("key_loginid");
PASSWORD=getIntent().getExtras().getString("key_pass");

 
private void initializeApplication()
    {      
        final ProgressDialog dialog = new ProgressDialog(this);

        dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        dialog.setTitle("on boarding ...");
        dialog.setMessage("Please wait while downloading initial data...");
        dialog.setIndeterminate(false);
        dialog.setProgress(100);
        dialog.setCancelable(true);
        dialog.show();

        new Thread()
        {
            @Override
            public void run()
            {
                try
                {
                    int count = 0;
                    while (!initializationDone)
                    {
                        dialog.setProgress(++count);
                        Thread.sleep(100);

                        if (count == 100)
                        {
                            count = 0;
                        }
                    }
                    dialog.cancel();
                }
                catch (Exception e)
                {
                    dialog.cancel();
                }
            }
        }.start();

         // ApplicationContext & ApplicationIdentifier are set here

        Application app = Application.getInstance();
        app.setApplicationIdentifier("CustomerSample");
        app.setApplicationContext(SUP101SampleActivity.this);
      

        new Thread(new Runnable()
        {
            @Override
            public void run()
            {
            
                try
                {
                    Application app = Application.getInstance();
                                     
                    CustomerSampleDB.registerCallbackHandler(new CustomerDBCallback());
                    CustomerSampleDB.setApplication(app);
                    CustomerSampleDB.getSynchronizationProfile().setServerName(HOST); // Convenience only

                    ConnectionProperties connProps = app.getConnectionProperties();
                    LoginCredentials loginCredentials = new LoginCredentials(USERNAME, PASSWORD);                     
                   
                    connProps.setLoginCredentials(loginCredentials);   //validating usercredentials
                    connProps.setServerName(HOST);
                    connProps.setPortNumber(PORT);
                  
                   
                    if (app.getRegistrationStatus() != RegistrationStatus.REGISTERED)
                    {
                        app.registerApplication(TIMEOUT);
                    }
                    else
                    {
                        app.startConnection(TIMEOUT);
                    }

                    if (!CustomerSampleDB.isSynchronized("default"))
                    {
                        CustomerSampleDB.disableChangeLog();
                        CustomerSampleDB.synchronize(); // Initial Synchronize

                        SynchronizationGroup sg = CustomerSampleDB.getSynchronizationGroup("default");
                        sg.setEnableSIS(true);
                        sg.save();
                        CustomerSampleDB.synchronize();
                    }
                    CustomerSampleDB.enableChangeLog();
                   
                    SUP101SampleActivity.this.runOnUiThread(new Runnable()
                    {
                        @Override
                        public void run()
                        {
                            adapter = new CustomerListAdapter(SUP101SampleActivity.this);

                            ListView listView = (ListView) findViewById(R.id.listView1);
                            listView.setAdapter(adapter);

                            listView.setOnItemClickListener(new OnItemClickListener()
                            {
                                @Override
                                public void onItemClick(AdapterView<?> a, View v, int position, long id)
                                {
                                    Intent intent = new Intent(SUP101SampleActivity.this, DetailActivity.class);
                                    intent.putExtra("sk", adapter.getSK(position));
                                    SUP101SampleActivity.this.startActivityForResult(intent, REQUEST_DETAIL);
                                }
                            });
                        }
                    });
                }
                catch (Exception e)
                {
                
                      e.printStackTrace();
                
                  
                }
                finally
                {
                    initializationDone = true;
                }
            }

  
        }).start();
    }
   
   

[Former Member]

Hi Yoga,

Your method of using static integer is correct.....!

Also, there is another way...

you can try this ....

instead of the line:

              app.setApplicationIdentifier("CustomerSample");

you can use:

              if (app.getApplicationIdentifier() == null){

                           app.setApplicationIdentifier("CustomerSample");

               }

this way you wont have the worry of using the static variable...

hope this was useful !

[Former Member]

I tried to use a static integer variable. I hope the issue is solved now.

The static variable is initialised to 0. Set the applicationIdentifier() & applicationContext() only when the value is 0.

When there is an exception bcoz of wrong user credentials, increment the static var by 1 so that the application will not try to set the identifier again when you try to give the correct user credentials again.

Thank you...