qt - Using a Loader for a string of QML -

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in qt 5.3 i've been using loader qml element loading screens, loading view qml file in background. i'm trying load string of qml dynamically. qt.createqmlobject enables me so, can't seem loader element play along.

seems loader takes url (qurl) or component (qqmlcomponent), qt.createqmlobject creates object (qobject).

i'm new qml, understanding components reusable elements, similar classes, , objects instances of classes. can't seem wrap head around why loader wouldn't work objects.

how can show loading screen while (asynchronously) parsing , initializing string of qml?

example qml code:

item {     rectangle {id: content}      loader {id: loader}      component.oncompleted: {         var obj = qt.createqmlobject('import qtquick 2.3; rectangle {}', content);          loader.source = obj; // throws error.     } }

it's not possible using current api. loader's documentation says, loads objects via url points qml file or component:

import qtquick 2.0  item {     rectangle {         id: content         anchors.fill: parent         color: "grey"          loader {             id: loader             sourcecomponent: mycomponent             anchors.fill: parent             anchors.margins: 40         }     }      property component mycomponent: qt.createcomponent("mycomponent.qml", component.asynchronous) }

mycomponent.qml:

import qtquick 2.2  rectangle {    color: "red" }

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