QML ListView draws ObjectModel outside of its bounds

I'm trying to get into QT/QML coming from WPF/XAML.

In a test GUI, I'm using a ListView to display different Models on click of a button.This works alright so far, the view keeps showing each model when I click the corresponding button.But it still draws all the other models outside of its own bounds, overlapping surrounding elements with them.Can I turn this behaviour off?

This is my ListView:

ListView{    id: list_view    anchors.fill:                   parent    model:                          main_view_model    snapMode:                       ListView.SnapOneItem    boundsBehavior:                 Flickable.StopAtBounds    highlightFollowsCurrentItem:    true    highlightMoveDuration:          75    highlightRangeMode:             ListView.StrictlyEnforceRange    currentIndex:                   view_index}

And this is the ObjectModel:

ObjectModel{    id: main_view_model    // ListView index 0    TestView1    {        anchors.centerIn: parent.center        width: list_view.width        height: list_view.height    }    // ListView index 1    TestView2    {        anchors.centerIn: parent.center        width: list_view.width        height: list_view.height    }    // ListView index 2    TestView3    {        anchors.centerIn: parent.center        width: list_view.width        height: list_view.height    }    // ListView index 3    TestView4    {        anchors.centerIn: parent.center        width: list_view.width        height: list_view.height    }}

I'm still struggling a bit with the layout and anchoring concepts of QML, since I'm used to XAML. So please excuse if I'm making an obvious mistake.