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Behavior QML Type

Defines a default animation for a property change. 更多...

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特性

• enabled : bool

详细描述

A Behavior defines the default animation to be applied whenever a particular property value changes.

For example, the following Behavior defines a NumberAnimation to be run whenever the Rectangle 's width value changes. When the MouseArea is clicked, the width is changed, triggering the behavior's animation:

import QtQuick 2.15
Rectangle {
    id: rect
    width: 100; height: 100
    color: "red"
    Behavior on width {
        NumberAnimation { duration: 1000 }
    }
    MouseArea {
        anchors.fill: parent
        onClicked: rect.width = 50
    }
}
						

注意： A property cannot have more than one assigned Behavior. To provide multiple animations within a Behavior, use ParallelAnimation or SequentialAnimation .

若 state change has a Transition that matches the same property as a Behavior, the Transition animation overrides the Behavior for that state change.

另请参阅 动画和过渡 .

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