Implementation of address book initial letter search function

           
  
 
 通讯录 
 
 
 
 
 
  
 
张三
 
 
 
  
 
李四
 
 
 
  
 
王五
 
 
 
  
 
刘六
 
 
 
  
 
马七
 
 
 
  
 
黄八
 
 
 
  
 
莫九
 
 
 
  
 
陈十
 
 
 
  
 
a九
 
 
 
  
 
1十
 
 
 
  
 
黄八
 
 
 
  
 
今天
 
 
 
  
 
突然
 
 
 
  
 
梵蒂冈
 
 
 
  
 
快乐的
 
 
 
  
 
撒地方
 
 
 
  
 
官方
 
 
 
  
 
哦
 
 
 
  
 
分割
 
 
 
  
 
票
 
 
 
 
 
 
 
     

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: 640px;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; }

$(function(){ var Initials=$('.initials'); var LetterBox=$('#letter'); Initials.find('ul').append('
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
#
'); 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('
' + value + '
'); }); if(num!=0){SortBox.append('
#
');} for (var i =0;i
        

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