Hi, I was previously adding objects one-by-one... I tried updating everything at once as you mentioned (ie. with QObjectList) and there was no delay at all, which is awesome :) However, doing this isn't really ideal in all cases -- for example, if I asynchronously receive a bunch of objects I need to update the view with, I'm stuck.
Also as an aside (but related question), is using QObjectListModel with threading safe? Ie, am I allowed to use it outside of the main thread? If you try to move QObjectListModel into its own thread, you need to register the QModelIndex object as a metatype, and after doing that, things *seemed* to work fine, but I was wondering if anyone had a concrete answer. Regards, Pris On Sun, Nov 13, 2011 at 4:05 AM, Andre Somers <[email protected]>wrote: > Op 13-11-2011 7:29, Pris Matic schreef: > > Hiya, > > > > I've been using this class: > > https://qt.gitorious.org/qt-labs/qml-object-model to expose a list of > > QObject properties to a ListView. It works great until the number of > > objects in the ListView starts going up. I have about 70 objects in my > > list view, each with maybe 10 properties (all QStrings or ints). My > > delegate isn't complicated, and ListView performance (ie. scrolling) > > is fluid. The issue is it takes forever for the ListView to load in > > the first place... upwards of 6-7 seconds on my dual core PC. This > > doesn't occur if you expose the data to the ListView through > > QVariant... in that case the data shows up almost immediately. Once > > the data is loaded, everything runs great. It also loads fine when > > there are less than 10-15 items. Has anyone else experienced this when > > using a Qaim based model with ListView in QML? Are there any workarounds? > > > How do you add the QObjects to the QObjectListModel? Do you do that > object-by-object, or do you set the whole list in one go using a > QObjectList? > > André > > _______________________________________________ > Qt-qml mailing list > [email protected] > http://lists.qt.nokia.com/mailman/listinfo/qt-qml >
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