PHP前端开发

详解html5如何获取手机陀螺仪角度信息的示例代码

百变鹏仔 2个月前 (10-18) #H5教程
文章标签 陀螺仪

html5事件中,deviceorientation事件,此事件是检测设备方向变化时的事件。其常用属性为alpha(x)、beta(y)、gamma(z)。

默认将手机垂直,且正面(90度)冲着自己

alpha:左右旋转

beta:前后旋转

gamma:扭转(自转)

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<html><head>    <title>DeviceOrientationEvent</title>    <meta charset="UTF-8" />    <meta name="viewport"     content="width=device-width,     initial-scale=1.0,     minimum-scale=1.0,     maximum-scale=1.0,     user-scalable=no">    <script src="js/common/jquery.min.js"></script>    <script src="js/common/eventutil.js"></script></head><body>    <p id="arrow"></p></body></html><script>    try {        var text = "";        window.addEventListener("deviceorientation", orientationHandler, false);        function orientationHandler(event) {            text = ""            var arrow = document.getElementById("arrow");            text += "左右旋转:rotate alpha{" + Math.round(event.alpha) + "deg)<p>";            text += "前后旋转:rotate beta{" + Math.round(event.beta) + "deg)<p>";            text += "扭转设备:rotate gamma{" + Math.round(event.gamma) + "deg)<p>";            arrow.innerHTML = text;        }    }    catch (e) {        $("#arrow").html(e.message)    }</script>