segfault when accessing QObjetcList based Listmodel in qml..

[matsukan]

I do have QObject based Listmodel in QML listview. Like

QList<QObject*> dataList;

QList<QObject*> dataList;

To copy to clipboard, switch view to plain text mode 

Problem is that when I reopen the view my program will get segfault in the QObject first property accesss.

- Open view and fill view without problem
- But second turn segfault occur before QML views Component.onCompleted signal.

Debug mode show that QObject first call to object property will get crash but no debug print shown at C++ side.

I will the Loader patten to load and switch between different views.

How I will reset my view ?

Qt 4.8 at Ubuntu

[Le_B]

how is your model implemented and referenced in qml ?
we need more info to see the real problem here

[matsukan]

qml:

ListView {
.
.
.

width: parent.width - 50; height: parent.height - upptoolbar.height
model: c_listModel
z: 0
delegate: ViewDelegate {}
highlight: Rectangle
{ color: "lightsteelblue"; radius: 5
width: rssview.width - 20
x: 10}

and
c++
app->declarativeEngine()->rootContext()->setContextProperty("c_listModel", QVariant::fromValue(m_list));

and

QList<QObject*> m_list;

[matsukan]

Problem root cause located, i will make more investagations and study.

Problem is how is data returned

[Urthas]

A list model is not a QList per se, but something that inherits from QAbstractListModel. Once you have a reference to such a model, you pass it as the second parameter to setContextProperty(). To access the data in the model, use functions like data(), itemData(), findX(), and so on.