maemo.org - Talk - View Single Post - Detect vertical scroll direction in QML ListView?

gionni88	2012-07-01 , 07:12
Posts: 435 \| Thanked: 769 times \| Joined on Apr 2010	#4

In QML there are signals for every property change, so with

Code:

onVerticalVelocityChanged: console.debug(verticalVelocity)

you get the current flicking velocity, which is negative if you're going up, or positive if you're going down.

But for your purpose, I'd show the pulldownitem when contentY is something like -200 (which means the user has pulled the list 200pixels below).

onContentYChanged: {
console.debug(contentY)
if (contentY == -200) showPulldownItem()
}

EDIT: ofc the debug line is only for checking, remove if from your release version.

__________________
My Fremantle projects: InternetRadioPlayer, QRadio, InternetRadioWidget, AutoRemoveSms, PSAutoLock, TodoListWidget, MediaPlayerWidget
My Harmattan projects: InternetRadioPlayer, QMLRadio, SigmaPlayer, WidgetCanvas, NotesExporter, 3DTris, NoStopPlayer, NotesImporter

Last edited by gionni88; 2012-07-01 at 07:15.

Quote & Reply |

The Following User Says Thank You to gionni88 For This Useful Post:
sony123