How to disable horizontal flicking in ScrollView

I am trying to disable only horizontal flicking (with having only vertical scrolling and flicking of content) when using QtQuick.Controls 2.2 ScrollView, which I declare this way:

ScrollView {    anchors.fill: parent    ScrollBar.horizontal.policy: ScrollBar.AlwaysOff}

I've tried

ScrollView {    anchors.fill: parent    ScrollBar.horizontal.policy: ScrollBar.AlwaysOff    Flickable.flickableDirection: Flickable.VerticalFlick}

But the Android app is crashing silently.

How do I disable only horizontal flicking and scrolling?