SwipeView QML Type

Enables the user to navigate pages by swiping sideways. 更多...

import 语句：	import QtQuick.Controls
继承：	容器

所有成员列表，包括继承成员

特性

horizontal : bool (since QtQuick.Controls 2.3 (Qt 5.10))
interactive : bool (since QtQuick.Controls 2.1 (Qt 5.8))
orientation : enumeration (since QtQuick.Controls 2.2 (Qt 5.9))
vertical : bool (since QtQuick.Controls 2.3 (Qt 5.10))

附加特性

index : int
isCurrentItem : bool
isNextItem : bool (since QtQuick.Controls 2.1 (Qt 5.8))
isPreviousItem : bool (since QtQuick.Controls 2.1 (Qt 5.8))
view : SwipeView

详细描述

SwipeView provides a swipe-based navigation model.

SwipeView is populated with a set of pages. One page is visible at a time. The user can navigate between the pages by swiping sideways. Notice that SwipeView itself is entirely non-visual. It is recommended to combine it with PageIndicator , to give the user a visual clue that there are multiple pages.

SwipeView {
    id: view
    currentIndex: 1
    anchors.fill: parent
    Item {
        id: firstPage
    }
    Item {
        id: secondPage
    }
    Item {
        id: thirdPage
    }
}
PageIndicator {
    id: indicator
    count: view.count
    currentIndex: view.currentIndex
    anchors.bottom: view.bottom
    anchors.horizontalCenter: parent.horizontalCenter
}

As shown above, SwipeView is typically populated with a static set of pages that are defined inline as children of the view. It is also possible to add , insert , move ，和 remove pages dynamically at run time.

When SwipeView is paired with another container such as TabBar , it is necessary to make a two-way binding between the currentIndex property of each control. To do this without breaking bindings, avoid setting currentIndex directly, and instead use setCurrentIndex (), for example. See Managing the Current Index 了解更多信息。

To perform an action when currentIndex changes, use the onCurrentIndexChanged property change signal handler :

onCurrentIndexChanged: {
    print("currentIndex changed to", currentIndex)
    // ...
}

It is generally not advisable to add excessive amounts of pages to a SwipeView. However, when the amount of pages grows larger, or individual pages are relatively complex, it may be desirable to free up resources by unloading pages that are outside the immediate reach of the user. The following example presents how to use Loader to keep a maximum of three pages simultaneously instantiated.

SwipeView {
    Repeater {
        model: 6
        Loader {
            active: SwipeView.isCurrentItem || SwipeView.isNextItem || SwipeView.isPreviousItem
            sourceComponent: Text {
                text: index
                Component.onCompleted: console.log("created:", index)
                Component.onDestruction: console.log("destroyed:", index)
            }
        }
    }
}

注意： SwipeView takes over the geometry management of items added to the view. Using anchors on the items is not supported, and any width or height assignment will be overridden by the view. Notice that this only applies to the root of the item. Specifying width and height, or using anchors for its children works as expected.

另请参阅 TabBar , PageIndicator , Customizing SwipeView , 导航控件 , 容器控件，和 Focus Management in Qt Quick Controls .

特性文档编制

horizontal : bool [read-only, since QtQuick.Controls 2.3 (Qt 5.10)]

This property holds whether the swipe view is horizontal.

该特性在 QtQuick.Controls 2.3 (Qt 5.10) 引入。

另请参阅 orientation .

interactive : bool [since QtQuick.Controls 2.1 (Qt 5.8)]

This property describes whether the user can interact with the SwipeView . The user cannot swipe a view that is not interactive.

默认值为 true .

该特性在 QtQuick.Controls 2.1 (Qt 5.8) 引入。

orientation : enumeration [since QtQuick.Controls 2.2 (Qt 5.9)]

This property holds the orientation.

可能的值：

常量	描述
`Qt.Horizontal`	Horizontal (default)
`Qt.Vertical`	Vertical

This property was introduced in QtQuick.Controls 2.2 (Qt 5.9).

另请参阅 horizontal and vertical .

vertical : bool [read-only, since QtQuick.Controls 2.3 (Qt 5.10)]

This property holds whether the swipe view is vertical.

该特性在 QtQuick.Controls 2.3 (Qt 5.10) 引入。

另请参阅 orientation .