内容

• 特性
• 详细描述
• 范例

EditorialModel QML Type

The EditorialModel type provides a model of place editorials. 更多...

import 语句：	import QtLocation 5.12
Since:	QtLocation 5.5

• 所有成员列表，包括继承成员

特性

• batchSize : int
• place : Place
• totalCount : int

详细描述

The EditorialModel is a read-only model used to fetch editorials related to a Place . Binding a Place 凭借 EditorialModel::place initiates an initial fetch of editorials. The model performs fetches incrementally and is intended to be used in conjunction with a View such as a ListView . When the View reaches the last of the editorials currently in the model, a fetch is performed to retrieve more if they are available. The View is automatically updated as the editorials are received. The number of editorials which are fetched at a time is specified by the batchSize property. The total number of editorials available can be accessed via the totalCount 特性。

The model returns data for the following roles:

角色	类型	描述
text	string	The editorial's textual description of the place. It can be either rich (HTML based) text or plain text depending upon the provider.
title	string	The title of the editorial.
语言	string	The language that the editorial is written in.
supplier	Supplier	The supplier of the editorial.
user	User	The user who contributed the editorial.
attribution	string	Attribution text which must be displayed when displaying the editorial.

范例

The following example shows how to display editorials for a place:

import QtQuick 2.0
import QtPositioning 5.5
import QtLocation 5.6
EditorialModel {
    id: editorialModel
    batchSize: 3
    place: place
}
ListView {
    model: editorialModel
    delegate: Item {
        anchors.fill: parent
        Column {
            width: parent.width
            clip: true
            Text {
                text: title
                width: parent.width
                wrapMode: Text.WordWrap
                font.pixelSize: 24
            }
            Text {
                text: text
                width: parent.width
                wrapMode: Text.WordWrap
                font.pixelSize: 20
            }
            Row {
                Image {
                    width: 16
                    height: 16
                    source: supplier.icon.url(Qt.size(width, height), Icon.List)
                }
                Text {
                    text: "Provided by " + supplier.name
                    font.pixelSize: 16
                }
            }
            Text {
                text: "Contributed by " + user.name
                font.pixelSize: 16
            }
            Text {
                text: attribution
                font.pixelSize: 8
            }
        }
    }
}
					

特性文档编制

batchSize : int

This property holds the batch size to use when fetching more editorials items.

place : Place

This property holds the Place that the editorials are for.

totalCount : int

This property holds the total number of editorial items for the place.