This construction with a binding for head.sections.selectedIndex should be avoided, because when the user taps on the sections to change the current section, the new index of the section is updated and the binding is broken.
Perhaps your newly defined property int selectedIndex should be an alias instead? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ubuntu-ui-toolkit in Ubuntu. https://bugs.launchpad.net/bugs/1517614 Title: Page.head.sections.selectedIndex binding of values is broken Status in Canonical System Image: New Status in ubuntu-ui-toolkit package in Ubuntu: Triaged Bug description: When trying to assign a binding value to head.sections.selectedIndex, this value is not updated when the bound value changes. See the example program below: import QtQuick 2.4 import Ubuntu.Components 1.3 MainView { id: mainview objectName: "mainView" width: units.gu(100) height: units.gu(75) Page { id: mainPage title: "selectedIndex: " + head.sections.selectedIndex + " should be: " + mainPage.selectedIndex property int selectedIndex: -1 head.sections.model: [ "first", "second", "third" ] head.sections.selectedIndex: mainPage.selectedIndex Rectangle { anchors.fill: parent color: "white" Label { anchors.centerIn: parent text: "Click me" } } MouseArea { anchors.fill: parent onClicked: mainPage.selectedIndex = (mainPage.selectedIndex + 1) % 3 } } } To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1517614/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp