Make an added ListViewItem the currentItem

Suli Sahne

Hello guys,

does anyone have an idea how I can easily turn a newly added item to a currentItem in a ListView?

J.Hilk

without testing it:

myView.currentItem = myView.itemAtIndex(myView.model.count -1)

Suli Sahne

Thanks, but the new item is not necessarily at the end..

I would need something like that:

ListView {
  onAdded: {
    currentIndex = addedIndex
  }
}

flowery

So , you want to handle both insert and add operation .Use ListView.onAdd{console.log("added index "+index)} handler inside delegate .

Suli Sahne

I tried to use a ScriptAction inside the add Transition:

ListView {
  id: myList
  add: Transition {
    ScriptAction {
      script: {
        console.log("add", ViewTransition.index)
        myList.currentIndex = ViewTransition.index
      }
    }
  }
}

But probably for performance reasons the Transition is called only if the new item is visible..

Suli Sahne

The next attempt was to react to the rowInserted signal of the QAIM.

ListView {
  id: myList
  model: myModel
}

Connections {
 target: myModel
  function onRowsInserted(parent, first, last) {
    console.log("inserted", first, last)
  }
}

but the signal is triggered before the list is updated..

Suli Sahne

@flowery ahhh ok, I got it. I have never heard of this attached property before. It works, thanks a lot!

ListView {
  id: myList
  delegate: ItemDelegate {
    ListView.onAdd: {
      myList.currentIndex = index
    }
  }
}

Suli Sahne

too early... ListView.onAdd is only called when the new item is visible.

GrecKo

use Qt.callLater in your rowsInserted signal handler.

Suli Sahne

@GrecKo perfect, that finally worked. Thanks a lot.