内容

• 特性
• 详细描述

PageIndicator QML Type

Indicates the currently active page. 更多...

导入语句：	import QtQuick.Controls 2.2
Since:	Qt 5.7
继承：	Control

• 所有成员列表，包括继承成员

特性

• count : int
• currentIndex : int
• delegate : Component
• interactive : bool

详细描述

PageIndicator is used to indicate the currently active page in a container of multiple pages. PageIndicator consists of delegate items that present pages.

Column {
    StackLayout {
        id: stackLayout
        Page {
            // ...
        }
        Page {
            // ...
        }
        Page {
            // ...
        }
    }
    PageIndicator {
        currentIndex: stackLayout.currentIndex
        count: stackLayout.count
    }
}
					

另请参阅 SwipeView , Customizing PageIndicator ，和 指示器控件 .

特性文档编制

count : int

This property holds the number of pages.

currentIndex : int

This property holds the index of the current page.

delegate : 组件

This property holds a delegate that presents a page.

The following properties are available in the context of each delegate:

index : int	The index of the item
pressed : bool	Whether the item is pressed

interactive : bool

This property holds whether the control is interactive. An interactive page indicator reacts to presses and automatically changes the current index appropriately.

SwipeView {
    id: view
    currentIndex: pageIndicator.currentIndex
    anchors.fill: parent
    Page {
        title: qsTr("Home")
    }
    Page {
        title: qsTr("Discover")
    }
    Page {
        title: qsTr("Activity")
    }
}
PageIndicator {
    id: pageIndicator
    interactive: true
    count: view.count
    currentIndex: view.currentIndex
    anchors.bottom: parent.bottom
    anchors.horizontalCenter: parent.horizontalCenter
}
					

注意： Page indicators are typically quite small (in order to avoid distracting the user from the actual content of the user interface). They can be hard to click, and might not be easily recognized as interactive by the user. For these reasons, they are best used to complement primary methods of navigation (such as SwipeView ), not replace them.

默认值为 false .