vue 自定义组件实现通讯录功能

<template> <div>  <my-header custom-title="通讯录" custom-fixed >   <button @touchstart="backBtn" slot="left">首页</button>   <button @touchstart="homeBtn" slot="right">+</button>  </my-header>  <my-list :user-data="userData"></my-list> <!-- 传递数据 -->  <my-alert custom-title="呼叫">   <div class="alert_btn">     <button class="aler_tbn" @touchstart="confirmBtn">确认</button>     <button class="aler_tbn" @touchstart="cancelBtn">取消</button>    </div>  </my-alert> </div></template><script>import Vue from 'vue'; import Vuex from 'vuex'; var userData=[  {"index":"A","users":[   {"name":"a1","tel":"13333333331"},   {"name":"a2","tel":"13333333332"},   {"name":"a3","tel":"13333333333"},  ]},  {"index":"B","users":[   {"name":"b1","tel":"13333333331"},   {"name":"b2","tel":"13333333332"},   {"name":"b3","tel":"13333333333"},  ]},  {"index":"C","users":[   {"name":"c1","tel":"13333333331"},   {"name":"c2","tel":"13333333332"},   {"name":"c3","tel":"13333333333"},  ]},  {"index":"D","users":[   {"name":"d1","tel":"13333333331"},   {"name":"d2","tel":"13333333332"},   {"name":"d3","tel":"13333333333"},  ]},  {"index":"E","users":[   {"name":"e1","tel":"13333333331"},   {"name":"e2","tel":"13333333332"},   {"name":"e3","tel":"13333333333"},  ]},  {"index":"F","users":[   {"name":"f1","tel":"13333333331"},   {"name":"f2","tel":"13333333332"},   {"name":"f3","tel":"13333333333"},  ]},  {"index":"F1","users":[   {"name":"f1","tel":"13333333331"},   {"name":"f2","tel":"13333333332"},   {"name":"f3","tel":"13333333333"},  ]},  {"index":"F2","users":[   {"name":"f1","tel":"13333333331"},   {"name":"f2","tel":"13333333332"},   {"name":"f3","tel":"13333333333"},  ]},  {"index":"F3","users":[   {"name":"f1","tel":"13333333331"},   {"name":"f2","tel":"13333333332"},   {"name":"f3","tel":"13333333333"},  ]},  {"index":"F4","users":[   {"name":"f1","tel":"13333333331"},   {"name":"f2","tel":"13333333332"},   {"name":"f3","tel":"13333333333"},  ]},  {"index":"F5","users":[   {"name":"f1","tel":"13333333331"},   {"name":"f2","tel":"13333333332"},   {"name":"f3","tel":"13333333333"},  ]},];var busVm=new Vue(); //空实例 非父子传递值Vue.component('my-header',{ template:`<div id="header" :style="{'position':customFixed ? 'fixed':'static'}">   <slot name="left"></slot>   {{customTitle}}   <slot name="right"></slot> </div>`, props:{  'customTitle':{   type:String,   default:"标题"  },  'customFixed':{   type:Boolean,   default:false  } }})Vue.component('my-alert',{ template:`<div id="alert" ref="alert">    <div class="alert_content">     <div class="alert_title">      {{customTitle}}     </div>     <div class="alert_body">{{customBody}}</div>     <slot></slot>    </div>  </div>`, props:{  'customTitle':{   type:String,   default:"弹窗"  }, }, data:function(){   return{    'customBody':''   } }, mounted:function(){  busVm.$on('changeEvents',function(ev){   console.log(ev);   this.customBody=ev;   this.$refs.alert.style.display="flex"  }.bind(this)); }})Vue.component('my-list',{ template:`<div id="list">      <ul class="list_user" ref="listuser" @touchmove="bMove=true">       <li v-for="item in userData">        <p>{{item.index}}</p>        <ul>         <li @touchend="showtel(user.tel)" v-for="user in item.users">{{user.name}}</li>        </ul>       </li>      </ul>      <ul class="list_index" ref="listIndex">       <li @touchstart="setScroll" v-for="item in userIndex">{{item}}</li>      </ul>     </div>`, props:{  'user-data':{   type:Array,   default:function(){    return [];   }  } }, data:function(){  return {   bMove:false  } }, computed:{  userIndex:function(){   console.log(this.userData)   console.log(this.filterIndex(this.userData))   return this.filterIndex(this.userData);  } }, methods:{  filterIndex:function(data){    var result=[];    for(var i=0; i<data.length;i++){     if(data[i].index){      result.push(data[i].index);     }    }    return result;  },  setlistIndexPos:function(){   //   1、ref 加在普通的元素上，用this.ref.name 获取到的是dom元素   // 　　2、ref 加在子组件上，用this.ref.name 获取到的是组件实例，可以使用组件的所有方法。   // 　　3、如何利用 v-for 和 ref 获取一组数组或者dom 节点    var iH= this.$refs.listIndex.offsetHeight;    this.$refs.listIndex.style.marginTop=-iH/2 +'px';  },  showtel:function(ev){   if(!this.bMove){     busVm.$emit("changeEvents",ev)   }else{    this.bMove=false;   }  },  setScroll:function(ev){   console.log(ev.target.innerHTML);   var ap=this.$refs.listuser.getElementsByTagName('p');   for(var i=0;i<ap.length;i++){    if(ap[i].innerHTML==ev.target.innerHTML){     document.body.scrollTop=ap[i].offsetTop;     document.documentElement.scrollTop=ap[i].offsetTop;     window.scrollTop=ap[i].offsetTop;      console.log(ap[i].offsetTop);    }   }  } }, mounted:function(){  this.setlistIndexPos(); }})export default { name: "HelloWorld", data() {  return {   userData:userData //挂载数据   }  },  methods:{   backBtn:function(){    alert("123")   },   homeBtn:function(){    alert("123")   },   confirmBtn:function(){    alert("a");   },   cancelBtn:function(){     console.log(this);     this.$children[2].$el.style.display="none"; //此处需要从外级找到   }  },};</script><!-- Add "scoped" attribute to limit CSS to this component only --><style>.page-container { position: absolute; left: 0; top: 0; width: 100%; height: 100%;}#alert{width: 100%; height: 100%; background: rgba(0,0,0,0.5); position: fixed; top: 0; top: 0; z-index: 20px; display: none;}#alert .alert_content{width: 200px;position: relative; height: 150px; background: #fff;border-radius: 10px; margin: auto;}.alert_body{height: 50px; line-height: 50px; text-align: center;}.alert_btn{position: absolute;right: 0 ;bottom:0;}.list_index{  position: fixed;list-style: none; padding-right: 10px; font-size: 20px; font-weight: 700;  top: 50%;  right: 0;}  .alert_title{padding-top: 20px;}#list .list_user p{background: #ccc; padding-left: 10px}#list .list_user ul li{ padding-left: 10px;border-bottom: 1px solid #ccc; line-height:30px;}#list{   width: 100%;  text-align: left;   float: left; position: relative; top: 40px; overflow: hidden;}.aler_tbn{padding: 5px; margin-bottom: 5px; border-radius: 5px;}button{background: #f60; color: #fff;}#header{width: 100%;height:40px; background: #666; z-index:9999;color: #fff;text-align: center;line-height: 40px;font-size: 20px;}#header button{height: 100%;padding: 0 5px}#header button:nth-of-type(1){float: left}#header button:nth-of-type(2){float: right}</style>