How to get the event only when scrolled down to the end?

How-to
1

Description

When scrolled down to the end of table (or list), I’d like to get an event.
I used **LV_EVENT_SCROLL_END**, but it all happened when I scrolled up or scrolled down to the end. How to get the event only when scrolled down?

2

You can check the scroll direction in the event with

if(lv_indev_get_scroll_dir(lv_indev_get_act()) == LV_DIR_BOTTOM)
{
  ...
}
3

I tried it, but only the LV_DIR_VER event is occurred.

static void table_event_cb(lv_event_t * event)
{
	lv_event_code_t code = lv_event_get_code(event);

	if(lv_indev_get_scroll_dir(lv_indev_get_act()) == LV_DIR_BOTTOM )
	{
		if(code == LV_EVENT_SCROLL_END) {
                  ...
		}
	}
	else if(lv_indev_get_scroll_dir(lv_indev_get_act()) == LV_DIR_VER )
	{
		...
	}
}

 lv_obj_add_event_cb(win_content, table_event_cb, LV_EVENT_ALL, NULL);
4

Ah, you are right.

  lv_point_t p;
  lv_indev_get_vect(lv_indev_get_act(), &p);

tells the difference between the last and current point of the input device. You can check the sign of p.y the decide the scroll direction.

5

That’s great. It works :slight_smile:

	lv_point_t p;
	lv_indev_get_vect(lv_indev_get_act(), &p);

	if(p.y < 0)
	{
		if(code == LV_EVENT_SCROLL_END) {
                    ...
        }
    }