Creando un reporte ALV en ABAP

Creación de un reporte en ABAP utilizando un simple ALV para mostrar datos de la tabla SPFLI.

*&---------------------------------------------------------------------*
*& Report  ZAHM_ALV_DEMO
*&
*&---------------------------------------------------------------------*
*&Descripcion: Mostrar diferentes formas de crear un ALVGrid.
*&Programo...: Armando H Mateu.
*&Fecha......: 18/08/2015.
*&---------------------------------------------------------------------*

REPORT  ZAHM_ALV_DEMO.

include ZAHM_ALV_DEMO_TOP.
include ZAHM_ALV_DEMO_SUB.

START-OF-SELECTION.
  PERFORM obtener_datos.
  PERFORM crear_cabecera.
  PERFORM crear_catalogo.
  PERFORM mostrar_cabecera.
  PERFORM mostrar_reporte.

*&---------------------------------------------------------------------*
*&  Include           ZAHM_ALV_DEMO_TOP
*&---------------------------------------------------------------------*

*======================================================================
* Tablas                                                              *
*======================================================================
TABLES: spfli.
*======================================================================
* TYPES-POOLS                                                         *
*======================================================================
TYPE-POOLS: slis.
DATA: gt_header    TYPE slis_t_listheader,    " Tabla con el Título y el Logo
      wa_header    TYPE slis_listheader.      " Work Area con el Título

"types: slis_t_fieldcat_alv type slis_fieldcat_alv occurs 1.
DATA: tg_fieldcat TYPE slis_t_fieldcat_alv,
      sg_fieldcat TYPE slis_fieldcat_alv,
      sg_layout   TYPE slis_layout_alv.


*======================================================================
* TYPES                                                               *
*======================================================================
TYPES:
  BEGIN OF ty_spfli,
      carrid TYPE spfli-carrid,
    connid TYPE spfli-connid,
    cityfrom TYPE spfli-cityfrom,
    END OF ty_spfli.

*======================================================================
* TABLAS INTERNAS                                                     *
*======================================================================
DATA:
       it_spfli TYPE STANDARD TABLE OF ty_spfli.
*======================================================================
* WORK AREA                                                           *
*======================================================================

*======================================================================
* Variables Globales                                                           *
*======================================================================
Data: gv_posicion length 2 type n.
*======================================================================
* SELECT-OPTIONS AND PARAMETERS                                       *
*======================================================================
SELECTION-SCREEN BEGIN OF BLOCK ini1 WITH FRAME TITLE text-001.

*SELECT-OPTIONS: s_carrid FOR spfli-carrid OBLIGATORY.
PARAMETERS p_carrid TYPE spfli-carrid OBLIGATORY.

SELECTION-SCREEN END OF BLOCK ini1.

*&---------------------------------------------------------------------*
*&  Include           ZAHM_ALV_DEMO_SUB
*&---------------------------------------------------------------------*
*&---------------------------------------------------------------------*
*&      Form  crear_cabecera
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM crear_cabecera .
  DATA: wa_header TYPE slis_listheader.

  wa_header-typ = 'H'.
  wa_header-info = 'Creacion de un ALV Simple'.
  APPEND  wa_header TO gt_header.

  CLEAR wa_header.
  wa_header-typ = 'S'.
  wa_header-key = 'Ejecución:'.
  CONCATENATE
       sy-uname(12) ' // '
       sy-datum+6(2) '.'
       sy-datum+4(2) '.'
       sy-datum(4) ' // '
       sy-uzeit(2) ':'
       sy-uzeit+2(2) ':'
       sy-uzeit+4(2)
  INTO wa_header-info.

  APPEND  wa_header TO gt_header.
ENDFORM.                    " crear_cabecera
*&---------------------------------------------------------------------*
*&      Form  mostrar_cabecera
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM mostrar_cabecera .
* Pasa a la cabecera el logo
  CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
    EXPORTING
*     I_LOGO             = 'ENJOYSAP_LOGO'  "Logo
      it_list_commentary = gt_header.
ENDFORM.                    " mostrar_cabecera
*&---------------------------------------------------------------------*
*&      Form  obtener_datos
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM obtener_datos .
  SELECT carrid connid cityfrom
    INTO TABLE it_spfli
    FROM spfli
    WHERE carrid = p_carrid.
ENDFORM.                    " obtener_datos
*&---------------------------------------------------------------------*
*&      Form  crear_catalogo
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM crear_catalogo .
  CLEAR tg_fieldcat[].
  CLEAR gv_posicion.
**
  ADD 1 TO gv_posicion.
  CLEAR sg_fieldcat.
  sg_fieldcat-fieldname = 'CARRID'.
  sg_fieldcat-tabname   = 'it_spfli'.
  sg_fieldcat-seltext_l  = 'ID'.
  sg_fieldcat-col_pos   = gv_posicion.
  APPEND sg_fieldcat TO tg_fieldcat.

  ADD 1 TO gv_posicion.
  CLEAR sg_fieldcat.
  sg_fieldcat-fieldname = 'CONNID'.
  sg_fieldcat-tabname   = 'it_spfli'.
  sg_fieldcat-seltext_l  = 'Numero de vuelo'.
  sg_fieldcat-col_pos   = gv_posicion.
  APPEND sg_fieldcat TO tg_fieldcat.

  ADD 1 TO gv_posicion.
  CLEAR sg_fieldcat.
  sg_fieldcat-fieldname = 'CITYFROM'.
  sg_fieldcat-tabname   = 'it_spfli'.
  sg_fieldcat-seltext_l  = 'Ciudad Salida'.
  sg_fieldcat-col_pos   = gv_posicion.
  APPEND sg_fieldcat TO tg_fieldcat.


ENDFORM.                    " crear_catalogo
*&---------------------------------------------------------------------*
*&      Form  Mostrar_reporte
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM mostrar_reporte .

  sg_layout-colwidth_optimize = 'X'.

  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      is_layout              = sg_layout
      it_fieldcat            = tg_fieldcat[]
      i_callback_program     = sy-repid
      i_callback_top_of_page = 'MOSTRAR_CABECERA'
    TABLES
      t_outtab               = it_spfli[]
    EXCEPTIONS
      program_error          = 1
      OTHERS                 = 2.
ENDFORM.                    " Mostrar_reporte

Resultados: