SpringAnimation QML 类型

import QtQuick

Item {
    width: 300; height: 300

    Rectangle {
        id: rect
        width: 50; height: 50
        color: "red"

        Behavior on x { SpringAnimation { spring: 2; damping: 0.2 } }
        Behavior on y { SpringAnimation { spring: 2; damping: 0.2 } }
    }

    MouseArea {
        anchors.fill: parent
        onClicked: (mouse)=> {
            rect.x = mouse.x - rect.width/2
            rect.y = mouse.y - rect.height/2
        }
    }
}