Loader element and CommonDialog element

[owenzhao]

I am trying to speed up my qml page loading. Currently I have some(3 or 4) CommonDialog in my MainPage. I use CommonDialog.open() when I need them. However, since I am concerning the loading speed of my app, is that better to turn the dialogs to components and using a loader when I need them.
My worry is that I am not sure if it is necessary. In my opinion, the CommonDialog element is not loading as soon as they construct, so maybe the qt component builders have already consider this, so I need not to do it myself?
Turning CommonDialog into Loader is just simply
@
Page { id: mainPage
Loader { id: dialogLoader }
Component {
id: dialog01
CommonDialog { //define a dialog }
}
Rectangle { id: mainRect
anchors.fill: parent
MousrArea { anchors.fill: parent
onClicked: dialogLoader.sourceComponent = dialog01
}
}
}
@