multi selection

dialog.qml

import QtQuick 2.0
import Sailfish.Silica 1.0
Dialog {
    id: dialog
    property var itemsModel
    property bool multiple
    SilicaListView {
        id: view
        anchors.fill: parent
        header: DialogHeader {
            title: dialog.multiple ? qsTr("Select items") : qsTr("Select item")
            acceptText: qsTr("Ok")
        }
        model: itemsModel
        delegate: Component {
            ValueButton {
                value: text
                highlighted: down || selected
                onClicked: {
                    itemsModel.select(index)
                    if (!dialog.multiple) {
                        accept(index)
                    }
                }
            }
        }
        section.property: "group"
        section.delegate: Component {
            SectionHeader {
                text: section
            }
        }
        VerticalScrollDecorator {}
    }
}