html5摇一摇_html/css_WEB-ITnose

//摇一摇(使用DeviceOrientation事件, 本质是计算偏转角)//测试中发现有些设备不支持if(window.DeviceOrientationEvent){    $(window).on('deviceorientation', function(e) {        if (isStarted) {            return true;        }        if (!lastAcc) {            lastAcc = e;            return true;        }        var delA = Math.abs(e.alpha - lastAcc.alpha);        var delB = Math.abs(e.beta - lastAcc.beta);        var delG = Math.abs(e.gamma - lastAcc.gamma);        if ( (delA > 15 && delB > 15) || (delA > 15 && delG > 15) || (delB > 15 || delG > 15)) {            start();        }        lastAcc = e;    });

//摇一摇(使用DeviceMotion事件, 推荐,应为可以计算加速度)if(window.DeviceMotionEvent) {    var speed = 25;    var x, y, z, lastX, lastY, lastZ;    x = y = z = lastX = lastY = lastZ = 0;    window.addEventListener('devicemotion', function(event){        var acceleration = event.accelerationIncludingGravity;        x = acceleration.x;        y = acceleration.y;        if(Math.abs(x-lastX) > speed || Math.abs(y-lastY) > speed) {            start();        }        lastX = x;        lastY = y;    }, false);}

var isStarted = false;// 开始摇签function start() {    isStarted = true;    $('.qiancover').hide();    $('.decode').hide();    $('.result').show();    // setTimeout(showDecode, 3000);}// 显示正在解签function showDecode() {    $('.result').hide();    $('.decode').show();    setTimeout(jumpToDecode, 3000);}// 跳至签文页面function jumpToDecode(){    var urls = ["#", "#"];    var jumpTo = urls[parseInt(Math.random() * urls.length)];    window.location = jumpTo;};