通讯录首字母检索功能实现

来源：好走旅游网

这次给大家带来通讯录首字母检索功能实现，通讯录首字母检索功能实现的注意事项有哪些，下面就是实战案例，一起来看一下。

主要代码如下：

<!DOCTYPE html>
<html lang="en">
<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, user-scalable=no">
 <meta name="apple-mobile-web-app-capable" content="yes">
 <meta name="apple-mobile-web-app-status-bar-style" content="black">
 <meta name="format-detection" content="telephone=no">
 <title>通讯录首字母检索</title>
 <link rel="stylesheet" href="css/style.css" rel="external nofollow" >
</head>
<body>
 <header class="fixed">
 <p class="header">
 通讯录
 </p>
 </header>
 <p id="letter" ></p>
 <p class="sort_box">
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">张三</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">李四</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">王五</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">刘六</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">马七</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">黄八</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">莫九</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">陈十</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">a九</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">1十</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">黄八</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">今天</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">突然</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">梵蒂冈</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">快乐的</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">撒地方</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">官方</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">哦</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">分割</p>
 </p>
 <p class="sort_list">
 <p class="num_logo">
 <img src="./img/img.png" alt="">
 </p>
 <p class="num_name">票</p>
 </p>
 </p>
 <p class="initials">
 <ul>
 <li><img src="./img/068.png"></li>
 </ul>
 </p>
 <script type="text/javascript" src="http://cdn.bootcss.com/jquery/2.2.3/jquery.min.js"></script>
 <script type="text/javascript" src="js/jquery.charfirst.pinyin.js"></script>
 <script type="text/javascript" src="js/sort.js"></script>
</body>
</html>

style.css

html,body,p,ul,li,ol,a,input,textarea,p,dl,dt,dd{margin:0;padding:0;}
ul li{list-style: none;}
a{text-decoration: none;cursor: pointer;}
html{height: 100%;}
body{height: 100%;background: #f5f5f5;position: relative;font-family: '微软雅黑';max-width: 0px;margin:auto;}
a,input,img,textarea,span,p{outline: 0;-webkit-tap-highlight-color:rgba(255,0,0,0);}
header{
 width:100%;
 height: 45px;
 background: #ececea;
 border-bottom: 1px solid #ddd;
}
header.fixed{
 position: fixed;
 left: 0;
 top: 0;
 z-index: 99;
}
.header{
 margin:0 20px;
 text-align: center;
 color: #4e4a49;
 font-size: 1em;
 height: 45px;
 line-height: 45px;
 position: relative;
}
#letter{
 width: 100px;
 height: 100px;
 border-radius: 5px;
 font-size: 75px;
 color: #555;
 text-align: center;
 line-height: 100px;
 background: rgba(145,145,145,0.6);
 position: fixed;
 left: 50%;
 top: 50%;
 margin:-50px 0px 0px -50px;
 z-index: 99;
 display: none;
}
#letter img{
 width: 50px;
 height: 50px;
 float: left;
 margin:25px 0px 0px 25px;
}
.sort_box{
 width: 100%;
 padding-top: 45px;
 overflow: hidden;
}
.sort_list{
 padding:10px 60px 10px 80px;
 position: relative;
 height: 40px;
 line-height: 40px;
 border-bottom:1px solid #ddd;
}
.sort_list .num_logo{
 width: 50px;
 height: 50px;
 border-radius: 10px;
 overflow: hidden;
 position: absolute;
 top: 5px;
 left: 20px;
}
.sort_list .num_logo img{
 width: 50px;
 height: 50px;
}
.sort_list .num_name{
 color: #000;
}
.sort_letter{
 background-color: white;
 height: 30px;
 line-height: 30px;
 padding-left: 20px;
 color:#787878;
 font-size: 14px;
 border-bottom:1px solid #ddd;
}
.initials{
 position: fixed;
 top: 47px;
 right: 0px;
 height: 100%;
 width: 15px;
 padding-right: 10px;
 text-align: center;
 font-size: 12px;
 z-index: 99;
 background: rgba(145,145,145,0);
}
.initials li img{
 width: 14px;
}

sort.js

$(function(){
 var Initials=$('.initials');
 var LetterBox=$('#letter');
 Initials.find('ul').append('<li>A</li><li>B</li><li>C</li><li>D</li><li>E</li><li>F</li><li>G</li><li>H</li><li>I</li><li>J</li><li>K</li><li>L</li><li>M</li><li>N</li><li>O</li><li>P</li><li>Q</li><li>R</li><li>S</li><li>T</li><li>U</li><li>V</li><li>W</li><li>X</li><li>Y</li><li>Z</li><li>#</li>');
 initials();
 $(".initials ul li").click(function(){
 var _this=$(this);
 var LetterHtml=_this.html();
 LetterBox.html(LetterHtml).fadeIn();
 Initials.css('background','rgba(145,145,145,0.6)');
 setTimeout(function(){
 Initials.css('background','rgba(145,145,145,0)');
 LetterBox.fadeOut();
 },1000);
 var _index = _this.index()
 if(_index==0){
 $('html,body').animate({scrollTop: '0px'}, 300);//点击第一个滚到顶部
 }else if(_index==27){
 var DefaultTop=$('#default').position().top;
 $('html,body').animate({scrollTop: DefaultTop+'px'}, 300);//点击最后一个滚到#号
 }else{
 var letter = _this.text();
 if($('#'+letter).length>0){
 var LetterTop = $('#'+letter).position().top;
 $('html,body').animate({scrollTop: LetterTop-45+'px'}, 300);
 }
 }
 })
 var windowHeight=$(window).height();
 var InitHeight=windowHeight-45;
 Initials.height(InitHeight);
 var LiHeight=InitHeight/28;
 Initials.find('li').height(LiHeight);
})
function initials() {//排序
 var SortList=$(".sort_list");
 var SortBox=$(".sort_box");
 SortList.sort(asc_sort).appendTo('.sort_box');//按首字母排序
 function asc_sort(a, b) {
 return makePy($(b).find('.num_name').text().charAt(0))[0].toUpperCase() < makePy($(a).find('.num_name').text().charAt(0))[0].toUpperCase() ? 1 : -1;
 }
 var initials = [];
 var num=0;
 SortList.each(function(i) {
 var initial = makePy($(this).find('.num_name').text().charAt(0))[0].toUpperCase();
 if(initial>='A'&&initial<='Z'){
 if (initials.indexOf(initial) === -1)
 initials.push(initial);
 }else{
 num++;
 }
 });
 $.each(initials, function(index, value) {//添加首字母标签
 SortBox.append('<p class="sort_letter" id="'+ value +'">' + value + '</p>');
 });
 if(num!=0){SortBox.append('<p class="sort_letter" id="default">#</p>');}
 for (var i =0;i<SortList.length;i++) {//插入到对应的首字母后面
 var letter=makePy(SortList.eq(i).find('.num_name').text().charAt(0))[0].toUpperCase();
 switch(letter){
 case "A":
 $('#A').after(SortList.eq(i));
 break;
 case "B":
 $('#B').after(SortList.eq(i));
 break;
 case "C":
 $('#C').after(SortList.eq(i));
 break;
 case "D":
 $('#D').after(SortList.eq(i));
 break;
 case "E":
 $('#E').after(SortList.eq(i));
 break;
 case "F":
 $('#F').after(SortList.eq(i));
 break;
 case "G":
 $('#G').after(SortList.eq(i));
 break;
 case "H":
 $('#H').after(SortList.eq(i));
 break;
 case "I":
 $('#I').after(SortList.eq(i));
 break;
 case "J":
 $('#J').after(SortList.eq(i));
 break;
 case "K":
 $('#K').after(SortList.eq(i));
 break;
 case "L":
 $('#L').after(SortList.eq(i));
 break;
 case "M":
 $('#M').after(SortList.eq(i));
 break;
 case "N":
 $('#N').after(SortList.eq(i));
 break;
 case "O":
 $('#O').after(SortList.eq(i));
 break;
 case "P":
 $('#P').after(SortList.eq(i));
 break;
 case "Q":
 $('#Q').after(SortList.eq(i));
 break;
 case "R":
 $('#R').after(SortList.eq(i));
 break;
 case "S":
 $('#S').after(SortList.eq(i));
 break;
 case "T":
 $('#T').after(SortList.eq(i));
 break;
 case "U":
 $('#U').after(SortList.eq(i));
 break;
 case "V":
 $('#V').after(SortList.eq(i));
 break;
 case "W":
 $('#W').after(SortList.eq(i));
 break;
 case "X":
 $('#X').after(SortList.eq(i));
 break;
 case "Y":
 $('#Y').after(SortList.eq(i));
 break;
 case "Z":
 $('#Z').after(SortList.eq(i));
 break;
 default:
 $('#default').after(SortList.eq(i));
 break;
 }
 };
}

最终效果：

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