Comment 1 for bug 1275877

I tried another solution with dynamic page creation, but "tools" property can't be set without blinking of ToolBarItems in the middle of the page, try this code

import QtQuick 2.0
import Ubuntu.Components 0.1
import "ui"

/*!
    \brief MainView with Tabs element.
           First Tab has a single Label and
           second Tab has a single ToolbarAction.
*/

MainView {
    // objectName for functional testing purposes (autopilot-qt5)
    objectName: "mainView"

    // Note! applicationName needs to match the "name" field of the click manifest
    applicationName: "com.ubuntu.developer.mrqtros.ToolbarBug"

    width: units.gu(50)
    height: units.gu(75)

    Tabs {
        id: tabstabs

        Tab {
            id: someTab
            title: i18n.tr("..World!")

            property bool mode: false

            page: mainLoader.item

            Loader {
                id: mainLoader

                sourceComponent: someTab.mode ? secPageComp : fstPageComp
            }

            Component {
                id: fstPageComp

                Page {
                    id: firstPage

                    visible: !someTab.mode
                    anchors.fill: parent

                    Label {
                        anchors.centerIn: parent
                        text: "Page 1"
                    }

                    tools: firstTools
                }
            }

            ToolbarItems {
                id: firstTools

                ToolbarButton {
                    iconSource: Qt.resolvedUrl("graphics/toolbarIcon.png")
                    text: i18n.tr("Tap 1!")

                    onTriggered: {
                        someTab.mode = !someTab.mode
                    }
                }
            }

            Component {
                id: secPageComp

                Page {
                    id: secondPage

                    visible: someTab.mode
                    anchors.fill: parent

                    Label {
                        anchors.centerIn: parent
                        text: "Page 2"
                    }

                    tools: secondTools

                    ToolbarItems {
                        id: secondTools

                        ToolbarButton {
                            id: brtTool

                            iconSource: Qt.resolvedUrl("graphics/toolbarIcon.png")
                            text: i18n.tr("Tap 2!")

                            onTriggered: {
                                someTab.mode = !someTab.mode
                            }
                        }
                    }
                }
            }
        }
    }
}