Dear all,
I was looking into deploying a simple QML App on a wide range of
devices. The App consists basically of two QML Lists which are used for
horizontal and vertical page navigation. The ranges of Display DPI
differ a lot between those devices.
Now there are two issues I ran into.
1. On High DPI cases the sensitivity of the lists is very high,
basically touching the screen is already registered as a drag and
pressing buttons is pretty hard. On Low DPI its fine. Of course you
can tweak the startDragDistance with
QApplication::startDragDistance, or the corresponding value in your
Platform Style. However, this would mean that you need to adjust for
each target device to get the expected behavior, which might not be
possible and preferable - I think that the default value should
respect the screen DPI.
2. I would like to have the vertical page navigation list to be less
sensitive than the horizontal page navigation list and the
horizontal page navigation list even less sensitive than all other
"normal" content lists.
I couldn't find a way to adjust the sensitivity on a case by case
situation. All I found was a feature request
https://bugreports.qt-project.org/browse/QTBUG-18792, but it was
closed invalid back in 2011, without any comment.
Maybe I overlook a feature and this is already possible?
What do you think?
* Wouldn't it make sense to make the default start drag distance
respecting screen dpi?
* What do you think about to add a property on the QML Flickable in
order to customize startDragDistance for this one QML Flickable? Are
there any concerns about having such a property?
Thanks for your opinion,
Jeremias
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