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JavaScript+H5實(shí)現(xiàn)微信搖一搖功能

更新時(shí)間：2018年05月23日 10:14:15 作者：許小乖

這篇文章主要為大家詳細(xì)介紹了JavaScript+H5實(shí)現(xiàn)微信搖一搖功能，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

項(xiàng)目終于如約上線，但是在春節(jié)前又有一個(gè)新的活動(dòng)要做，類似微信的搖一搖活動(dòng)。也一直在做微信公眾號(hào)的東西，但是要調(diào)用微信搖一搖的接口還是有些困難，因?yàn)橹惶峁┝藫u一搖周邊，附近的人以及一系列的紅包頁面，相對(duì)于我們的需求只需要搖一搖這個(gè)動(dòng)作卻是大相徑庭。

其實(shí)H5+JavaScript寫出來的頁面，通過獲取手機(jī)的屏幕長(zhǎng)和寬，以及添加聲音等就可以實(shí)現(xiàn)搖一搖的效果。

第一步，實(shí)現(xiàn)手機(jī)搖動(dòng)改變顏色

<!doctype html> 
<html> 
 <head> 
 <meta charset="utf-8" /> 
 <meta name="viewport" content="width=device-width,initial-scale=1.0"/> 
 <title>HTML5 手機(jī)搖一搖</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> 
    手機(jī)搖一搖，改變屏幕顏色。 
 </body> 
</html>

主要是手機(jī)的DeviceMotionEvent事件

第二步，微信搖一搖手勢(shì)

相對(duì)于第一步就是增加了搖一搖手勢(shì)，改變了搖動(dòng)事件。在搖一搖動(dòng)作之后再添加自己想要的方法即可，無論是想要進(jìn)入下一個(gè)自己做的頁面還是觸發(fā)一個(gè)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>搖一搖</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(); 
        //在此為搖動(dòng)之后的事件，這里為調(diào)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(); 
   } 
 
   //各種初始化 
   $(document).ready(function () { 
    Howler.iOSAutoEnable = false; 
    FastClick.attach(document.body); 
    init(); 
   }); 
 </script> 
</head> 
<body> 
 <table id="container"> 
   <tbody> 
       <tr> 
        <td class="container" colspan="2"> 
       <div id="shake"> 
        <img src="plug-in/liuliangbao/shake/images/inner.png" class="inner"> 
        <img src="plug-in/liuliangbao/shake/images/shake.png" class="shake_up" id="shakeup"> 
        <img src="plug-in/liuliangbao/shake/images/shake.png" class="shake_down" id="shakedown"> 
         </div><div id="loading" class="loading"></div> 
        </td> 
     </tr> 
     <tr> 
      <td> 
       您今天還可以搖<input id="shakeCount" name="shakeCount" value="${leftcount}">次 
      </td> 
     </tr> 
     <tr> 
      <td>正確姿勢(shì)：握緊手機(jī)，用力搖動(dòng)3秒，苦練18年的麒麟臂終于派上用場(chǎng)了。</td> 
     </tr> 
    </tbody> 
 </table> 
</body> 
</html>

有時(shí)候真的可以換一種方法去實(shí)現(xiàn)自己想要的功能。附圖：demo本來實(shí)現(xiàn)的效果是: