> On 24 Nov 2014, at 20:14, Federico Buti <bacaro...@gmail.com> wrote:
>
> Hi all.
>
> The "add", "remove" and the other Transition properties of the Views enable a
> nice customization for the animation of items w.r.t. their view.
> What about scrolling? Is is possible to customize the way items behave on
> View scroll? Something like this for instance.
>
> What elements to be used? I had an example (which I modified) that applys
> transformations on the currently selected item, so no gradual transformations
> like in the example.
>
> I think that it is necessary to define a Behaviour on the y property of each
> item to apply a specific Transition. But how to obtain the y poisiton w.r.t.
> to the view? MapfromItem()? Where to store it, since saving it as a property
> inside the delegate seems not a good idea at all?
It’s not a problem declaring such properties inside your delegate. Delegates
are are unique objects with theirs own state in QML. A fairly simple way of
doing it is like this:
ListView {
id: list
model: 100
anchors.fill: parent
delegate: Rectangle {
property int listY: y - list.contentY
scale: Math.min(1, listY/100)
width: parent.width ; height: 30
border.color: "lightgray"
}
}
Regards,
Jens
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