Кнопка входа в Facebook не работает

Question

Я использую диалог из моей активности входа в систему. Внутри диалога у меня есть кнопка входа в Facebook (из Facebook SDK lib). Когда я нажимаю на кнопку входа в Facebook, приложение на мгновение переходит на страницу аутентификации Facebook, а затем возвращается в мое приложение, но на самом деле ничего не происходит.

моя деятельность

public class LoginActivityNew extends FragmentActivity implements OnClickListener{


    ViewPager pager;
    LoginPagerAdapter pagerAdapter;
    Button join, login;

    UiLifecycleHelper uiHelper;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
        uiHelper = new UiLifecycleHelper(this, statusCallback);
        uiHelper.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);

        pagerAdapter = new LoginPagerAdapter(getSupportFragmentManager());

        pager = (ViewPager) findViewById(R.id.login_pager);
        pager.setAdapter(pagerAdapter);

        join = (Button) findViewById(R.id.login_join_now_button1);
        login = (Button) findViewById(R.id.login_login_button2);

        join.setOnClickListener(this);
        login.setOnClickListener(this);
    }   //end of onCreate



    @Override
    public void onClick(View v) {
        switch(v.getId()){

        case R.id.login_join_now_button1:                       //JOIN BUTTON
            DialogLoginSignup singupDialog = new DialogLoginSignup(this, R.style.DialogTheme);
            singupDialog.show();
            singupDialog.init(singupDialog);
            break;

        case R.id.login_login_button2:                          //LOGIN BUTTON
            DialogLoginWelcome loginDialog = new DialogLoginWelcome(this, R.style.DialogTheme);
            loginDialog.show();
            loginDialog.init(loginDialog);
            break;

        }
    }

    private Session.StatusCallback statusCallback = new Session.StatusCallback() {

        @Override
        public void call(Session session, SessionState state, Exception exception) {
            if (state.isOpened()) {
                //Log.d("ohad", "Facebook session opened.");
            } else if (state.isClosed()) {
                //Log.d("ohad", "Facebook session closed.");
            }
        }
    };

    @Override
    public void onResume() {
        super.onResume();
        uiHelper.onResume();
    }

    @Override
    public void onPause() {
        super.onPause();
        uiHelper.onPause();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        uiHelper.onDestroy();
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        uiHelper.onActivityResult(requestCode, resultCode, data);
    }

    @Override
    public void onSaveInstanceState(Bundle savedState) {
        super.onSaveInstanceState(savedState);
        uiHelper.onSaveInstanceState(savedState);
    }



    private class LoginPagerAdapter extends FragmentPagerAdapter{

        public LoginPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int pos) {
            switch (pos) {

            case 0:
                return new FragmentLogin1();

            case 1:
                return new FragmentLogin2();

            case 2:
                return new FragmentLogin3();

            }
            return null;
        }

        @Override
        public int getCount() {
            return 3;
        }

    }

}

мой диалог

public class DialogLoginWelcome extends Dialog implements OnClickListener, IUserLoginListener, TimelineListener{

    TextView join, forgot;
    EditText email, password;
    Button login;
    LoginButton facebook;

    Boolean state;
    String fbEmail, fbPass;

    Calendar cal;
    Session session;
    IUserLoginListener mIUserLoginListener;
    UserLoginHelper mUserLoginHelper;

    Context context;


    public DialogLoginWelcome(Context context) {
        super(context);
        this.context = context;
    }

    public DialogLoginWelcome(Context context, int theme) {
        super(context, theme);
        this.context = context;
    }

    public DialogLoginWelcome(Context context, boolean cancelable, OnCancelListener cancelListener) {
        super(context, cancelable, cancelListener);
        this.context = context;
    }


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
        setContentView(R.layout.login_welcome_back);
        getWindow().setLayout(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
        getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
        mIUserLoginListener = this;
    }


    public void init(DialogLoginWelcome dialog){
        join = (TextView) dialog.findViewById(R.id.welcome_join_now_textView3);
        forgot = (TextView) dialog.findViewById(R.id.welcome_forgot_textView4);
        email = (EditText) dialog.findViewById(R.id.welcome_email_editText1);
        password = (EditText) dialog.findViewById(R.id.welcome_password_editText2);
        facebook = (LoginButton) dialog.findViewById(R.id.welcome_fb_connect_button1);
        login = (Button) dialog.findViewById(R.id.welcome_login_button2);

        facebook.setReadPermissions(Arrays.asList("email","public_profile"));
        facebook.setSessionStatusCallback(statusCallback);
        facebook.setUserInfoChangedCallback(new LoginButton.UserInfoChangedCallback() {

            @Override
            public void onUserInfoFetched(GraphUser user) {
                session = Session.getActiveSession();
                Log.d("ohad", "facebook login changed! --- ");
                if(user != null){
                    ProgressBarClass.startLoading(context);
                    Log.d("ohad", user.toString());
                    cal = Calendar.getInstance();

                    mUserLoginHelper = new UserLoginHelper(mIUserLoginListener);
                    mUserLoginHelper.postUserDetails(user.getProperty("email").toString().trim(), user.getId().trim());
                }
            }

        });


        join.setOnClickListener(this);
        forgot.setOnClickListener(this);
        login.setOnClickListener(this);

        //email.setText("[e-mail]");   
        //password.setText("a");    

        //email.setText("[e-mail]");  //Production 
        //password.setText("naama1978raviv");       

        //email.setText("[e-mail]");      //Dev
        //password.setText("kraus246"); 

        //email.setText("[e-mail]");   //Production 
        //password.setText("1234"); 

        email.setText("[e-mail]"); //Production & Dev
        password.setText("nl555");

        //email.setText("[e-mail]");    //Production 
        //password.setText("wsi768");
    }

    @Override
    public void onClick(View v) {
        switch(v.getId()){

        case R.id.welcome_join_now_textView3:                       //JOIN
            dismiss();
            DialogLoginSignup dialog = new DialogLoginSignup(context, R.style.DialogTheme);
            dialog.show();
            dialog.init(dialog);
            break;

        case R.id.welcome_forgot_textView4:                         //FORGOT
            //context.startActivity(new Intent(context, ForgotPassActivity.class));
            break;

        case R.id.welcome_fb_connect_button1:                       //FACEBOOK

            break;

        case R.id.welcome_login_button2:                            //LOGIN
            //VALIDATION OF INPUT SCREEN
            //IF FIELDS ARE EMPTY - SHOW ALERT MESSAGE.
            if (email.getText().toString().equals("")|| password.getText().toString().equals("")){ 
                Alert_Dialog.showAler(context, "Enter the required fields.", "Error!");
            } 

            else {        //IF FIELDS AREN'T EMPTY
                state = Utility.isOnline(context);
                if (state == true) { 
                    ProgressBarClass.startLoading(context);
                    new UserLoginHelper(this).postUserDetails(email
                            .getText().toString().trim(), password
                            .getText().toString().trim());

                } else if (state == false) {
                    Alert_Dialog.showAler(context, "Check Internet Connection", "Network Error!");
                }
            }
            break;

        }

    }


    @Override
    public void onUserLoginError(String errorMsg) {
        ProgressBarClass.dismissLoading();
        Alert_Dialog.showAler(context, errorMsg, "Error");
    }

    @Override
    public void onUserLoginSuccess(String response) {
        JSONObject res;
        try {  
            res = new JSONObject(response);

            Constant.me.setName(res.getString("full_name"));
            Constant.me.setEmail(res.getString("email"));
            Constant.me.setFirstName(res.getString("first_name"));
            Constant.me.setLastName(res.getString("last_name"));
            Constant.me.setBirth_date(res.getString("birthday"));
            Constant.me.setBody_value(res.getString("bio"));
            Constant.me.setProfileImageUrl(res.getString("picture"));
            Constant.me.setPrivacy(res.getString("privacy"));
            Constant.me.setPermissions(res.getString("permissions"));
            Constant.me.setUid(res.getString("uid"));
            Constant.me.setRelationship("self");

        } catch (JSONException e) {
            e.printStackTrace();
        } finally{
            new TimeHelper(this).getAlbumDetails(Constant.INFIBOND_DEV_SERVER_URL + 
                    "timeline/get?uid=" + Constant.me.getUid() + 
                    "&userType=user" + 
                    "&storiesLimitPerYear=6");
        }

    }

    @Override
    public void onTimelineError(String errorMsg) {
        ProgressBarClass.dismissLoading();
        Alert_Dialog.showAler(context, errorMsg, "Error");
    }

    @Override
    public void onTimelineSuccess(String response) {
        JSONObject res = null;
        try {  
            res = new JSONObject(response); 
        } catch (JSONException e) {
            e.printStackTrace();
        } 

        Intent intent = new Intent(context, MyInfiActivity.class);
        intent.putExtra("moments", res.toString());

        context.startActivity(intent);
        ProgressBarClass.dismissLoading();
        ((Activity) context).finish();
    }

    private Session.StatusCallback statusCallback = new Session.StatusCallback() {

        @Override
        public void call(Session session, SessionState state, Exception exception) {
            if (state.isOpened()) {
                Log.d("ohad", "Facebook session opened. 3");
            } else if (state.isClosed()) {
                Log.d("ohad", "Facebook session closed. 3");
            }
        }
    };


}