QML之加速器仪表盘

Freeze-hu

已于 2023-12-12 11:28:39 修改

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分类专栏： QT 文章标签： QML

于 2023-12-12 11:27:57 首次发布

本文链接：https://blog.youkuaiyun.com/huzhifei/article/details/134945006

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1.QML 代码如下

import QtQuick 2.15
import QtQuick.Window 2.15
import QtQuick.Extras 1.4
import QtQuick.Controls 2.15

Window {
    width: 640
    height: 480
    visible: true
    title: qsTr("Hello World")


    CircularGauge {
        id:circular_gauge
        value: accelerating ? maximumValue : 0
        anchors.centerIn: parent

        property bool accelerating: false

        Keys.onSpacePressed: {

            accelerating = true
            label1.text = circular_gauge.value
        }

        Keys.onReleased: {
            if (event.key === Qt.Key_Space) {
                accelerating = false;
                event.accepted = true;
            }
        }

        Component.onCompleted: forceActiveFocus()

        Behavior on value {
            NumberAnimation {
                duration: 1000
            }
        }
    }

    Label{

        id:label1
        anchors.top: circular_gauge.bottom
        

    }
}

2.执行结果