The behavior that the previous textfield is visible through the current one that I described in my previous comment is fixed when I remove "searchfield.focus = true" from l.22 in CustomPage.qml of the test program branch.
The behavior that the previous textfield is visible through the current one that I described in my previous comment is fixed when I remove "searchfield.focus = true" from l.22 in CustomPage.qml of the test program branch.