类CL_SALV_FUNCTIONS_LIST两个方法(SET_ALL、SET_DEFAULT)可以添加标准状态栏

实现步骤:

CLASS lcl_model DEFINITION.
  PUBLIC SECTION.
    TYPES:BEGIN OF TY_dATA,
            vbeln TYPE vbak-vbeln,
            erdat TYPE erdat,
            erzet TYPE erzet,
            ernam TYPE ernam,
            auart TYPE auart.
    TYPES:END  OF ty_data.

    DATA mt_data TYPE TABLE OF ty_data.

    DATA mo_salv TYPE REF TO cl_salv_table.

    "获取数据的方法
    METHODS get_data.
    "展示SALV的方法
    METHODS alv_show.

  PRIVATE SECTION.
    METHODS:
      set_status CHANGING co_alv TYPE REF TO cl_salv_table.

ENDCLASS.

CLASS lcl_model IMPLEMENTATION.
  METHOD get_data.
    SELECT vbeln erdat erzet ernam auart
      INTO TABLE mt_data
      FROM vbak
      UP TO 20 ROWS.
  ENDMETHOD.

  METHOD alv_show.
    DATA: lx_msg TYPE REF TO cx_salv_msg.
    TRY.
        cl_salv_table=>factory(
          IMPORTING
            r_salv_table = mo_salv
          CHANGING
            t_table      = mt_data ).
      CATCH cx_salv_msg INTO lx_msg.
    ENDTRY.
    me->set_status( CHANGING co_alv = mo_salv ).
    mo_salv->display( ).
  ENDMETHOD.

  METHOD set_status.
    DATA(lo_functions) = co_alv->get_functions( ).
    "cl_salv_functions_list类型的实例对象的添加状态方法
    lo_functions->set_all( abap_true ).
    "lo_functions->set_default( abap_true ).
  ENDMETHOD.
ENDCLASS.

START-OF-SELECTION.
  DATA(lo_model) = NEW lcl_model( ).
  lo_model->get_data( ).
  lo_model->alv_show( ).