import QtQuick 2.10
import QtQuick.Controls 2.3
import QtQuick.Window 2.10

Window {
    visible: true

    Column {
        anchors.centerIn: parent
        spacing: 10

        CheckBox {
            id: checkBox

            text: "Hide Button"
        }

        Component {
            id: component

            Button {
                text: "Button"
                KeyNavigation.up: checkBox
            }
        }

        Loader {
            sourceComponent: checkBox.checked ? undefined : component
        }
    }
}