When you have some kind of image - CachedImage, FFimage, XF Image, within the ItemTemplate of the RadListView and you want to use the ItemSwipe functionality - the items constantly flicker.
If you set a constant height to the listView item - the issue is not observed:
<dataControls:RadListView.LayoutDefinition>
<listView:ListViewLinearLayout ItemLength="50"/></dataControls:RadListView.LayoutDefinition>