如何在QML Dial中更改循环进度条？

import QtQuick 2.0
import QtQuick.Controls 2.0

ApplicationWindow {
    visible: true
    width: 400
    height: 400

    Dial {
        id: progressDial
        anchors.centerIn: parent
        width: 200
        height: 200
        minimumValue: 0
        maximumValue: 100
        value: 0 // 初始值为0

        // 样式设置
        style: DialStyle {
            handle: Rectangle {
                width: 10
                height: 30
                color: "blue"
            }
        }
    }

    Timer {
        id: timer
        interval: 1000 // 每秒更新一次进度
        running: true
        repeat: true
        onTriggered: {
            // 每次触发时增加进度值
            progressDial.value += 10
            if (progressDial.value > progressDial.maximumValue) {
                progressDial.value = progressDial.minimumValue
            }
        }
    }
}