内容

• 特性
• 详细描述

SwitchDelegate QML Type

Item delegate with a switch indicator that can be toggled on or off. 更多...

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

• 所有成员列表，包括继承成员

特性

• position : real
• visualPosition : real

详细描述

SwitchDelegate presents an item delegate that can be toggled on (checked) or off (unchecked). Switch delegates are typically used to select one or more options from a set of options. For smaller sets of options, or for options that need to be uniquely identifiable, consider using Switch 代替。

SwitchDelegate inherits its API from ItemDelegate , which is inherited from AbstractButton . For instance, you can set text , and react to clicks 使用 AbstractButton API. The state of the switch delegate can be set with the checked 特性。

ListView {
    model: ["Option 1", "Option 2", "Option 3"]
    delegate: SwitchDelegate {
        text: modelData
    }
}
					

另请参阅 Customizing SwitchDelegate and 委托控件 .

特性文档编制

[read-only] position : real

This property holds the logical position of the thumb indicator.

The position is expressed as a fraction of the indicator's size, in the range 0.0 - 1.0 . The position can be used for example to determine whether the thumb has been dragged past the halfway point. For visualizing a thumb indicator, the right-to-left aware visualPosition should be used instead.

另请参阅 visualPosition .

[read-only] visualPosition : real

This property holds the visual position of the thumb indicator.

The position is expressed as a fraction of the indicator's size, in the range 0.0 - 1.0 . When the control is mirrored , the value is equal to 1.0 - position . This makes the value suitable for visualizing the thumb indicator taking right-to-left support into account. In order to for example determine whether the thumb has been dragged past the halfway point, the logical position should be used instead.

另请参阅 position .