Listview index increments on screen rotation

literA2

Hi,

Anyone encountered this issue? Any advise?

Here is the sample ListView

  ListView {
    id: wizardList

    property int delegateArea

    anchors.fill: parent
    focus: true
    boundsBehavior: Flickable.StopAtBounds
    highlightRangeMode: ListView.StrictlyEnforceRange
    orientation: ListView.Horizontal
    snapMode: ListView.SnapOneItem
    cacheBuffer: delegateArea
    //model: wizardModel

   delegate: WizardDelegate {
      Component.onCompleted: {
        wizardList.delegateArea = width * height;
      }
    }
  }

Flick the ListView to show item 2
Rotate the screen from portrait to landscape
item 2 is still the visible item
Rotate again the screen from landscape to portrait
The visible item is now item 3
Once you repeat the process, step 5 always increments the index.

I tried setting the cacheBuffer into 0, they same results when running the steps above.
However, when I tried to flick back after the index increments, it won't increment anymore when changing orientation.

Setting cacheBuffer to 0 it will affect the smothness when flicking items.

Thanks.

literA2

I found this the same issue before but it was tagged as out of scope. :(

https://bugreports.qt.io/browse/QTBUG-20332?jql=text ~ "listview screen rotation"

There's a comment stating that this works in QtQuick 2 however from my end it is still happening.

Am i the only one experiencing this?

Sumit Jadhav

I'm facing same issue and its still reproducible in Qt 5.5.0 Android. I think it is reproduced when we do some heavy operations inside list delgate.

SGaist

HI guys,

If you are still experiencing the behavior with Qt Quick 2 then please open a new report with a minimal compilable example that shows the behavior.

However, you should first test it against the latest version of Qt. Currently 5.7