Set Default TAB in OIF

Guys this is very simple but i’m keeping it for reference.

1. Create a WD Component with 2 views and windows.
2. Implement required FPM interfaces.
3. 
4. Embed views into required windows.
5. Configure FPM Component. here i’m not explains about Creation of WD Component and FPM configuration. 
6. 
7. Write bellow logic in FPM Event OVERRIDE_EVENT_OIF to Set Default Tab.

DATA:

       lo_event_params   TYPE REF TO if_fpm_parameter,

       lr_event          TYPE REF TO cl_fpm_event,

       lo_fpm            TYPE REF TO if_fpm.

   CASE io_oif->mo_event->mv_event_id.

     WHEN ‘FPM_START’.

       CREATE OBJECT lo_event_params TYPE cl_fpm_parameter.

       lo_event_params->set_value(

         EXPORTING

           iv_key = if_fpm_constants=>gc_event_param–view_id

           iv_value = ‘TAB_2’ ).

       CREATE OBJECT lr_event

         EXPORTING

           iv_event_id   = cl_fpm_event=>gc_event_view_switch

           io_event_data = lo_event_params.

       lo_fpm = cl_fpm_factory=>get_instance( ).

       lo_fpm->raise_event( lr_event ).

   ENDCASE.

ENDMETHOD.