E-mail field is null when logging in Facebook via Android app. Is this because Facebook sdk has been deprecated?

Question

1. code below shows:- fb login button click ,session created, retrieving details in onActivityResult().

2. user.asMap().get("email") is always null but can fetch name user id

   loginButton = (LoginButton)findViewById(R.id.login_button);
   loginButton.setOnClickListener(new OnClickListener() {
   
       @Override
       public void onClick(View v) {
           // TODO Auto-generated method stub
        callback = new Session.StatusCallback() {
               @Override
               public void call(Session session, SessionState state,
                       Exception exception) {
                   onSessionStateChange(session, state, exception);
                   System.out.println("onclick");
               }
           };
       }
   });
   
   private void onSessionStateChange(Session session, SessionState state,
           Exception exception) {
   
       // When Session is successfully opened (User logged-in)
       session1=session;
       if (state.isOpened()) {
           Log.i(TAG, "Logged in...");
           // make request to the /me API to get Graph user
           String[] PERMISSION_ARRAY_READ = {"email","user_birthday"};
           email=PERMISSION_ARRAY_READ[0];
           List<String> PERMISSION_LIST=Arrays.asList(PERMISSION_ARRAY_READ);
           session.openForRead(new Session.OpenRequest(getParent()).setPermissions(PERMISSION_LIST).setCallback(callback));
           Request.newMeRequest(session, new Request.GraphUserCallback() {
   
               // callback after Graph API response with user
               // object
   
               @Override
               public void onCompleted(GraphUser user,
                       com.facebook.Response response) {
                   // TODO Auto-generated method stub
                   if(user!=null){
                   fbID=user.getId();
                   }
               }
   
           }).executeAsync();
       } else if (state.isClosed()) {
           Log.i(TAG, "Logged out...");
           //otherView.setVisibility(View.GONE);
       }
   }
   
   @Override
   public void onActivityResult(int requestCode, int resultCode, Intent data) {
       super.onActivityResult(requestCode, resultCode, data);
   
       uiHelper.onActivityResult(requestCode, resultCode, data);
       Log.i(TAG, "OnActivityResult...");
   
       Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
   
       if (Session.getActiveSession().isOpened())
       {
           // Request user data and show the results
             String[] PERMISSION_ARRAY_READ = {"email","user_birthday"};
               email=PERMISSION_ARRAY_READ[0];
               final List<String> PERMISSION_LIST=Arrays.asList(PERMISSION_ARRAY_READ);
               Arrays.asList("email", "user_birthday");
               //session1.openForRead(new Session.OpenRequest(getParent()).setPermissions(PERMISSION_LIST).setCallback(callback));
           Request.newMeRequest(Session.getActiveSession(), new GraphUserCallback()
           {
   
               @Override
               public void onCompleted(GraphUser user,
                       com.facebook.Response response) {
                   // TODO Auto-generated method stub
                   if (null != user)
                   {
                       // Display the parsed user info
   
                       System.out.println("UserID : " + user.getId()  +"   name  "+user.getName() );
                       //System.out.println(" email "+user.asMap().get("email").toString() );
   
                       System.out.println((String) response.getGraphObject().getProperty("email")+" EEEEEEEEEEE");
                       System.out.println("Birthday "+user.getBirthday() +" hhh "+user.getProperty("email"));
                       System.out.println(user.asMap().get("gender") +" KKKKKKKKK");
   
                       fbID=user.getId();
                   }
   
               }
           }).executeAsync();
       }
   }
   

Answer 1

You should check the new SDK as it is easier to implement and use, but regarding your problem, Facebook won't send you the user email, unless you ask for it, something like this (I didn't test it as I don't have the old SDK anymore):

Request request = Request.newMeRequest(Session.getActiveSession(), new GraphUserCallback()
    {

        @Override
        public void onCompleted(GraphUser user,
                com.facebook.Response response) {
            // TODO Auto-generated method stub
            if (null != user)
            {
                // Display the parsed user info

                System.out.println("UserID : " + user.getId()  +"   name  "+user.getName() );
                //System.out.println(" email "+user.asMap().get("email").toString() );

                System.out.println((String) response.getGraphObject().getProperty("email")+" EEEEEEEEEEE");
                System.out.println("Birthday "+user.getBirthday() +" hhh "+user.getProperty("email"));
                System.out.println(user.asMap().get("gender") +" KKKKKKKKK");

                fbID=user.getId();
            }

        }
    });

Bundle bundle = new Bundle();
bundle.putString("fields", "id,email,<OTHER FIELDS YOU NEED>");
request.setParameters(bundle);
request.executeAsync();