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tizentizen-native-app

Scroller "scroll,drag,start" event's parameters

In Tizen 4.0, I'm using a scroller which provides multiple events when it's being scrolled, or dragged.

There is this event: "scroll,drag,start", and its callback:

static void scrollDragStart(void* data, Evas_Object* obj, void *event_info) { }

My question is simple: is there any way to determine the direction of the scroller's dragging?

(I know there are events with direction like "scroll,up", but it comes later after the drag event.)

Solution

  • Such information is not provided through arguments directly. (as you already know) if you want to know it, use 'scroll,[direction]' callback.

    I guess that something like below works, first, store scroller position whenever it moves. second, when the callback has invoked, calculate diff between stored position with current position of the scroller.