QML Animation not triggering when model size changes dynamically with Qt 6.5
Can someone help me understand I'm facing an issue where a QML animation is not triggering as expected when items in a ListView dynamically change (for example, adding or removing items) in Qt 6.5. I've set up a simple ListView with a model that allows for dynamic updates, but the animations on the delegate do not seem to respond when the model size changes. Here's a snippet of my QML code: ```qml ListView { id: listView model: myModel delegate: Item { width: listView.width height: 50 Text { text: modelData // Animation for when items are added/removed Behavior on opacity { NumberAnimation { duration: 300 from: 0.0 to: 1.0 } } } } } ``` I've tried using Item's `Component.onCompleted` to trigger animations manually, but that doesn't seem to help either. The model updates correctly, and I can see items being added/removed in the UI, but the opacity animation doesn't play. Additionally, I've checked that my model is emitting the correct signals when changes occur, and I’m using a ListModel defined in C++ that inherits from QAbstractListModel. Here’s the relevant part of my C++ code: ```cpp class MyListModel : public QAbstractListModel { Q_OBJECT // various implementation details public slots: void addItem(const QString &item) { beginInsertRows(QModelIndex(), rowCount(), rowCount()); // Add item logic here endInsertRows(); } void removeItem(int index) { beginRemoveRows(QModelIndex(), index, index); // Remove item logic here endRemoveRows(); } }; ``` I would appreciate any insights on why the animation might not be triggering and how I can ensure that it plays whenever the model size changes. I've also looked into using `Connections` to link to model signals, but I'm not sure if that's necessary or if there are better approaches that could ensure animations run smoothly in this scenario. Any feedback is welcome! I'd really appreciate any guidance on this. This issue appeared after updating to Qml latest.