1. @layout/plain_listview:

References plain ListView, with no tools: attributes.

• Expected: Shows a list of "Item N" / "Sub Item N" list items.

• Actual: 👍 Correct

  

2. @layout/plain_listview_custom_listitem

References plain ListView, with tools:listitem and tools:listheader attributes (pointing to @layout/preview_item)

• Expected: Shows a list of "Item N" / "Sub item N" list items, with colored backgrounds behind the text.

• Actual: 👎 Shows same preview as #1:

  

3. @layout/subclass_listview

References a subclass of ListView, with tools:listitem and tools:listheader attributes (pointing to @layout/preview_item)

• Expected: Shows a list of "Item N" / "Sub item N" list items, with colored backgrounds behind the text (as expected for #2)

• Actual: 👎 Shows a blank preview, as if it is an empty ViewGroup: