metodos para utilizar el actionbar

Utiles2.java

public static void setActionBarUser(android.support.v7.app.ActionBar actionBar, String user){
        try {
            actionBar.setSubtitle(String.format(Locale.US, "Usuario: %s", user));
        }catch (Exception e){
            actionBar.setSubtitle("");
            e.printStackTrace();
        }
    }
    
    public static void setActionBarMessage(android.support.v7.app.ActionBar actionBar, String message) {
        try{
            actionBar.setSubtitle(message);
        }catch (Exception e){
            actionBar.setSubtitle("");
            e.printStackTrace();
        }
    }