CategoryView.qml Example File

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import QtQuick 2.5
import QtLocation 5.6
import QtQml.Models 2.1

ListView {
    id: root
    property variant categoryModel
    property variant rootIndex

    signal searchCategory(variant category)
    signal showSubcategories(variant index)

    snapMode: ListView.SnapToItem

    model: DelegateModel {
        id: delegeteDataModel
        model: root.categoryModel
        rootIndex: root.rootIndex
        delegate: CategoryDelegate {
            onSearchCategory: root.searchCategory(category);
            onShowSubcategories: root.showSubcategories(delegeteDataModel.modelIndex(index))
        }
    }
}