Java Tips - A way to know when some changes are made in a list

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A way to know when some changes are made in a list

This J2ME tip describes a method that sets a command action whenever some changes are made in a list. The ItemMIDlet commandAction( ) method includes a case that detects the List selection change:




public void commandAction(Command c, Displayable d) {



  if (c == List.SELECT_COMMAND) {



    // Selection made in the IMPLICIT LIST

    handleChoiceSelection((Choice)d);



  } else {



    // Other cases not shown



  }

}