main.qml

import QtQuick 1.0

Rectangle {
    width: 360
    height: 360

    property int num: 0

    Text {
        text: "Hello World"
        anchors.centerIn: parent
    }

    NextPage { id:nextPage }

    MouseArea {
        anchors.fill: parent
        onClicked: {
            nextPage.func(num ? nextPage.rec1 : nextPage.rec2);
            num = 1 - num;
        }
    }
}