Hi, I have a weird behavior with resetting the QQuickView and some Qml script declared singleton inside qmldir. The singleton seem to stop exist properly at some point during resetting the QQuickView script:
void myClearCurrentScript() { qquick_view->setSource(QUrl()); QCoreApplication::processEvents(); qquick_view->engine()->clearComponentCache(); // or qquick_view->engine()->trimComponentCache(); } I have a singleton with a Loader for the style Component for controls. This allow us to assign the Controls style like this: Button { style: StyleSingleton.styleLoaderItem.buttonStyle } This work well when running the application for the first time and can change the loader Component on the fly without problem. But when I call the myClearCurrentScript() and run a new component that also use the singleton, the binding to styleLoaderItem seem to be dead. >TypeError: Cannot read property 'button' of undefined The trimComponentCache version seem to generate some errors but the singleton can recover from it and the style got apply eventually. When doing the clearComponentCache, the style is lost in a weird way (ComboBox got draw but not it's choice content, etc) and generate a tons of errors of undefined. If I inspect the singleton and loader after application restart everything seem to be fine. Look like the Component or thing used by the singleton stop existing for a small period of time. What is happening to Qml Singleton from qmldir when we call clearComponentCache() ? Is it because I use a Loader, the Loader Component get cleared (this what I suspect, since the the loader and singelton still accessible but not the item inside it)? Is there a way to also delete the singleton or having Loader preserve properly with the trimComponentCache? Thanks, Jerome
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