QTimer in Cascades

import bb.cascades 1.0
import my.lib 1.0
Page {

    content: Container{
           Label {
                id: timer_status;
           }
    }

    attachedObjects: [
      QTimer{
            id:my_timer
            interval: 3000
            //active: false
            onTimeout: {
                timer_status.text = "Timer stopped"
                stop();
            }
        }
    ]

    onCreationCompleted: {
        Application.fullscreen.connect(onFullscreen);
    }

    function onFullscreen() {
        my_timer.start()
        timer_status.text = "Timer started"
    }

    actions: [

        ActionItem {
            title: "Start timer";
            ActionBar.placement: ActionBarPlacement.OnBar;
            onTriggered: {
                timer_status.text = "Timer started"
                my_timer.start();
            }
        }

    ]
}