JavaScript+H5实现微信摇一摇功能

2019-11-19 13:47:38

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来源：转载

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项目终于如约上线，但是在春节前又有一个新的活动要做，类似微信的摇一摇活动。也一直在做微信公众号的东西，但是要调用微信摇一摇的接口还是有些困难，因为只提供了摇一摇周边，附近的人以及一系列的红包页面，相对于我们的需求只需要摇一摇这个动作却是大相径庭。

其实H5+JavaScript写出来的页面，通过获取手机的屏幕长和宽，以及添加声音等就可以实现摇一摇的效果。

第一步，实现手机摇动改变颜色

<!doctype html> <html>  <head>  <meta charset="utf-8" />  <meta name="viewport" content="width=device-width,initial-scale=1.0"/>  <title>HTML5 手机摇一摇</title>   <script type="text/javascript">    var color = new Array('#fff', '#ff0', '#f00', '#000', '#00f', '#0ff');    if(window.DeviceMotionEvent) {     var speed = 25;     var x = y = z = lastX = lastY = lastZ = 0;     window.addEventListener('devicemotion', function(){      var acceleration =event.accelerationIncludingGravity;      x = acceleration.x;      y = acceleration.y;      if(Math.abs(x-lastX) > speed || Math.abs(y-lastY) > speed) {       document.body.style.backgroundColor = color[Math.round(Math.random()*10)%6];      }      lastX = x;      lastY = y;     }, false);    }   </script>  </head>  <body>     手机摇一摇，改变屏幕颜色。  </body> </html>

主要是手机的DeviceMotionEvent事件

第二步，微信摇一摇手势

相对于第一步就是增加了摇一摇手势，改变了摇动事件。在摇一摇动作之后再添加自己想要的方法即可，无论是想要进入下一个自己做的页面还是触发一个Controller事件都可以。

<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head>  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  <meta charset="UTF-8">  <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0">  <title>摇一摇</title>  <link rel="stylesheet" href="plug-in/liuliangbao/shake/css/shake.css" rel="external nofollow" >  <link rel="stylesheet" href="plug-in/liuliangbao/shake/css/myDialog.css" rel="external nofollow" >  <script type="text/javascript" src="plug-in/liuliangbao/shake/js/jquery.min.js"></script>  <script type="text/javascript" src="plug-in/liuliangbao/shake/js/howler.min.js"></script>  <script type="text/javascript" src="plug-in/liuliangbao/shake/js/fastclick.js"></script>  <script type="text/javascript" src="plug-in/liuliangbao/shake/js/myDialog.js"></script>   <script type="text/javascript">    var SHAKE_THRESHOLD = 1000;    var last_update = 0;    var last_time = 0;    var x;    var y;    var z;    var last_x;    var last_y;    var last_z;    var sound = new Howl({ urls: ['/shake/sound/shake_sound.mp3'] }).load();    var findsound = new Howl({ urls: ['/shake/sound/shake_match.mp3'] }).load();    var curTime;    var isShakeble = true;     function init() {     if (window.DeviceMotionEvent) {      window.addEventListener('devicemotion', deviceMotionHandler, false);     } else {      $("#cantshake").show();     }    }     function deviceMotionHandler(eventData) {     curTime = new Date().getTime();     var diffTime = curTime - last_update;     if (diffTime > 100) {      var acceleration = eventData.accelerationIncludingGravity;      last_update = curTime;      x = acceleration.x;      y = acceleration.y;      z = acceleration.z;      var speed = Math.abs(x + y + z - last_x - last_y - last_z) / diffTime * 10000;        if (speed > SHAKE_THRESHOLD && curTime - last_time > 1100 && $("#loading").attr('class') == "loading" && isShakeble) {       shake();      }      last_x = x;      last_y = y;      last_z = z;     }    }     function shake() {     last_time = curTime;     $("#loading").attr('class','loading loading-show');     $("#shakeup").animate({ top: "10%" }, 700, function () {      $("#shakeup").animate({ top: "25%" }, 700, function () {       $("#loading").attr('class','loading');         findsound.play();         //在此为摇动之后的事件，这里为调用ControllergoShakeResult方法       window.location.href = "shakeController.do?goShakeResult&phoneNumber=${phoneNumber}&hdid=${hdid}&openid=${openid}";      });     });     $("#shakedown").animate({ top: "40%" }, 700, function () {      $("#shakedown").animate({ top: "25%" }, 700, function () {      });     });     sound.play();    }     //各种初始化    $(document).ready(function () {     Howler.iOSAutoEnable = false;     FastClick.attach(document.body);     init();    });  </script> </head> <body>  <table id="container">    <tbody>        <tr>         <td class="container" colspan="2">        <div id="shake">         <img src="plug-in/liuliangbao/shake/images/inner.png" class="inner">         <img src="plug-in/liuliangbao/shake/images/shake.png" class="shake_up" id="shakeup">         <img src="plug-in/liuliangbao/shake/images/shake.png" class="shake_down" id="shakedown">          </div><div id="loading" class="loading"></div>         </td>      </tr>      <tr>       <td>        您今天还可以摇<input id="shakeCount" name="shakeCount" value="${leftcount}">次       </td>      </tr>      <tr>       <td>正确姿势：握紧手机，用力摇动3秒，苦练18年的麒麟臂终于派上用场了。</td>      </tr>     </tbody>  </table> </body> </html>

有时候真的可以换一种方法去实现自己想要的功能。附图：demo本来实现的效果是: