Realize Zhihu front-end dynamic list effect based on jQuery and Bootstrap framework
- 高洛峰Original
- 2016-12-07 11:48:032212browse
Recently implemented a front-end effect that imitates Zhihu dynamic list based on jQuery and Bootstrap framework, which basically achieves the same effect as Zhihu dynamic list. As follows:
1. Basic list items
2. Expand and collapse the full text of list items (the first item is expanded in the picture)
3. Expand comment items
4. List data Load (load all) .5. The likes of the animation effect
6. The hover display function of the reply list
html code is as follows:
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE9" /> <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" /> <link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap.min.css" /> <link rel="stylesheet" href="//cdn.bootcss.com/bootstrap/3.3.5/css/bootstrap-theme.min.css" /> <script src="//cdn.bootcss.com/jquery/1.11.3/jquery.min.js"></script> <script src="//cdn.bootcss.com/bootstrap/3.3.5/js/bootstrap.min.js"></script> <script src="scripts/jquery.json.min.js"></script> <link rel="stylesheet" href="styles/main.css" /> <script src="scripts/test.js"></script> </head> <body> <div style="display:none;"> <div id="t_dn" class="dynamic_node"> <meta class="dn_id" content=""/> <meta class="dn_user_id" content=""/> <div class="dn_left"> <div class="dn_user_avatar"><a href=""> <img class="img-thumbnail" src="" / alt="Realize Zhihu front-end dynamic list effect based on jQuery and Bootstrap framework" ></a> </div> <div class="dn_zannum"> <span></span> </div> <div class="dn_dianzan"> <a href=""><span class="glyphicon glyphicon-thumbs-up" aria-hidden="true"></span></a> </div> </div> <div class="dn_right"> <div class="dn_title"> <span class="glyphicon glyphicon-share-alt" aria-hidden="true"></span> <a href=""><span></span></a> </div> <div class="dn_right_top"> <div class="dn_username"> <a href=""><span class="dn_username_name"></span></a> <span class="dn_username_signature"></span> </div> <div class="dn_content_close1"> <a href=""> <span class="glyphicon glyphicon-triangle-bottom" aria-hidden="true"></span> </a> </div> </div> <div class="dn_content"> <a href="" class="dn_content_link"> <span class="dn_content_digest"></span> </a> <span class="dn_content_text"></span> </div> <div class="dn_action"> <div class="dn_content_close2"> <a href=""> <span class="glyphicon glyphicon-triangle-top" aria-hidden="true"></span> </a> </div> <a href=""><span class="dn_action_report">举报</span></a> <a href=""><span class="dn_action_share">分享</span></a> <a href=""><span class="dn_action_comm">103条评论</span></a> <span class="dn_action_time"></span> </div> <div class="dn_comm"> <div class="dn_comm_items"> </div> <div class="dn_comm_showall"> <button id="dn_comm_showall_button" type="button" class="btn btn-default btn-xs">显示全部评论</button> </div> <div class="dn_comm_replay"> <div class="dn_comm_replay_field"> <textarea class="form-control" rows="2" placeholder="写下你的评论..."></textarea> </div> <div class="dn_comm_replay_buttoms"> <button type="button" class="btn btn-primary btn-sm">评论</button> <a href="" class="dn_comm_replay_buttoms_cancel">取消</a> </div> </div> </div> </div> </div> <div id="t_dn_comm" class="dn_comm_item"> <meta class="dn_comm_id" content=""> <div class="dn_comm_item_left"> <div> <a href="#"><img class="img-rounded" src="images/user.png" / alt="Realize Zhihu front-end dynamic list effect based on jQuery and Bootstrap framework" > </a> </div> </div> <div class="dn_comm_item_mid"> <div class="dn_comm_item_middle_username"> <a href="#"><span>用户名</span></a> </div> <div class="dn_comm_item_mid_content"> <span></span> </div> <div class="dn_comm_foot"> <div class="dn_comm_foot_left"> <span>2015-09-08 12:00:09</span> </div> <div class="dn_comm_item_mid_action"> <a href="#"><span>回复</span></a> <a href="#"><span>举报</span></a> </div> </div> </div> <div class="dn_comm_item_right"> <div class="dn_comm_zannum"> <span>5</span> </div> <div class="dn_comm_dianzan"> <a href="#"> <span class="glyphicon glyphicon-thumbs-up" aria-hidden="true"></span> </a> </div> </div> </div> </div> <div class="global"> <div class="list_layout"> </div> <div class="load_flag"> <button id="load_flag_button" type="button" class="btn btn-default btn-s">加载更多</button> <div id="load_flag_info"><small>没有更多了 ！</small></div> </div> </div> </body> </html>E
<style>
/* global navigadion */
.nav{
width:100%;
height:3.5em;
padding-top:0em;
vertical-align:middle;
background-image: -moz-linear-gradient(top, #99FFFF, #FFFFFF);
background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0, #99FFFF), color-stop(1, #FFFFFF));
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#99FFFF', endColorstr='#FFFFFF', GradientType='0');
}
.nav-content{
width:1024px;
margin-left: auto;
margin-right: auto;
}
#nav_user_name,#nav_user_avatar,#nav_btn_notice,#nav_btn_discuss,#nav_btn_read,#nav_btn_index,#nav_search_text,#nav_search_text{
margin-top:0.5em;
}
.brand{
font-size:2.5em;
font-weight:lighter;
color:#5e5e5e;
font-family: "Microsoft JhengHei"! important;
}
.avatar img{
padding:0.2em;
}
#notice_num{
visibility:visible;
backgroung-color:red;
color:white;
width: 1.6em;
height: 1.6em;
background: red;
-moz-border-radius: 1em;
-webkit-border-radius: 1em;
border-radius: 1em;
position:fixed;
}
#nav_user_name{
float:right;
}
#nav_user_avatar{
float:right;
}
.content{
width:1024px;
margin-left: auto;
margin-right: auto;
}
.left{
float:left;
width:100%;
}
.right{
background-color:white;
float:left;
width:100%;
}
.foot{
float:left;
}
.foot span{
font-size:0.8em;
font-weight:lighter;
}
.dashed-line{
border-bottom:1px dashed;
border-bottom-color:#C9C9C9;
}
/*##############################################*/
/* dynamic list */
.dynamic_node{
width:100%;
border-top:1px solid #eee;
padding-bottom:1em;
padding-top:1em;
float:left;
}
.dn_left{
width:50px;
float:left;
}
.dn_left img{
width:50px;
height:50px;
}
.dn_dianzan,.dn_zannum{
width:100%;
float:left;
margin-left:auto;
margin-right:auto;
text-align:center;
}
.dn_right{
padding-left:1em;
width:666px;
float:left;
}
.dn_title label{
font-weight:lighter;
color:#6b6b6b;
}
.dn_title a span{
color:#259;
font-weight:bold;
}
.dn_username_name{
font-weight:bold;
font-size:0.8em;
color:#259;
}
.dn_username_signature{
font-size:0.8em;
}
.dn_action{
float:right;
}
.dn_action span{
float:right;
margin-left:1em;
margin-top:1em;
font-size:0.8em;
}
.dn_content_digest,.dn_content_text{
float:left;
font-size:0.8em;
color:#363636;
width:100%;
}
.dn_content_text{
display:none;
}
.dn_content_close1,.dn_content_close2{
float:right;
display:none;
font-size:1em;
}
.dn_action{
display:none;
float:right;
}
.dn_comm{
float:left;
width:100%;
display:none;
}
.dn_comm_items{
float:left;
width:100%;
}
.dn_comm_item{
float:left;
margin-top:0.8em;
border-top:1px solid #eee;
padding-top:0.8em;
}
.dn_comm_item_left{
width:50px;
float:left;
}
.dn_comm_item_mid{
width:560px;
float:left;
}
.dn_right_top{
width:100%;
float:left;
}
.dn_comm_item_right{
width:30px;
float:right;
text-align:center;
}
.dn_comm_item_left img{
width:30px;
height:30px;
}
.dn_comm_item_middle_username,.dn_comm_item_mid_content,.dn_comm_item_mid_time{
float:left;
font-size:0.8em;
}
.dn_comm_item_mid_action{
float:right;
margin-left:1em;
font-size:0.8em;
display:none;
}
.dn_comm_item_mid_action span{
margin-left:1em;
}
.dn_comm_dianzan{
font-size:1em;
width:100%;
margin-left:auto;
margin-right:auto;
}
.dn_comm_zannum{
font-size:1em;
color:#797979;
width:100%;
margin-left:auto;
margin-right:auto;
}
.dn_comm_foot_left{
float:left;
padding-top:0.4em;
color:#797979;
width:50%;
font-size:0.7em;
}
.dn_comm_replay{
float:left;
width:100%;
margin-top:1em;
padding-top:1em;
border-top:1px solid #eee;
}
.dn_comm_replay_field{
float:left;
width:100%;
margin-bottom:1em;
}
.dn_comm_replay_buttoms a,button{
float:right;
}
.dn_comm_replay_buttoms_cancel{
padding-top:0.5em;
margin-right:1em;
}
.dn_comm_dianzan{
width:100%;
float:left;
}
.dn_comm_showall{
float:left;
width:100%;
margin-top:1em;
padding-top:1em;
border-top:1px solid #eee;
}
.dn_comm_showall #dn_comm_showall_button{
float:left;
width:80%;
margin-left:10%;
margin-right:10%;
margin-top:1em;
border-top:1px solid #eee;
}
/*##############################################*/
/* */
.global{
width:716px;
}
.list_layout,.load_flag{
width:100%;
float:left;
display:block;
}
.load_flag{
padding-top:1em;
border-top:1px solid #eee;
margin-bottom:3em;
}
.load_flag button{
float:left;
width:80%;
margin-left:10%;
margin-right:10%;
}
.load_flag #load_flag_info{
float:left;
text-align:center;
width:80%;
margin-left:10%;
margin-right:10%;
display:none;
}
/*##############################################*/
/* */
</style>
js文件内容如下（test.js）：
[javascript] view plain copy
$(document).ready(function(){
url_user = "http://user.com/i=";
url_img = "http://127.0.0.1/pages/";
url_dianzan = "http://dianzan.com";
url_dn_detail = "http://dt.com/i=";
layout_list = $(".list_layout");
t_dn = $("#t_dn");
t_dn_comm = $("#t_dn_comm");
maxnum = 2; // 最大加载次数
num = 1;
load_flag = $(".load_flag");
function render_dn_list(arr_dn){
for(var i=0; i<arr_dn.length;i++){
var node_dn = t_dn.clone();
node_dn.find(".dn_id").attr("content",arr_dn[i]["ID"]); //动态ID
node_dn.find(".user_id").attr("content",arr_dn[i]["userid"]); //用户ID
node_dn.find(".dn_left .dn_user_avatar a").attr("href",url_user+arr_dn[i]["userid"]); // 用户名链接
node_dn.find(".dn_left .dn_user_avatar a img").attr("src",url_img+arr_dn[i]["avatar"]); // 用户头像
node_dn.find(".dn_zannum span").text(arr_dn[i]["zan"]); // 点赞数
//node_dn.find(".dn_dianzan a").attr("href",arr_dn[i]["avatar"]); // 点赞链接
node_dn.find(".dn_title a").attr("href",url_dn_detail+arr_dn[i]["fid"]+"#"+arr_dn[i]["ID"]); //跳转动态所在页锚点
node_dn.find(".dn_title a span").text(arr_dn[i]["from"]); // 所属标题
node_dn.find(".dn_username a").attr("src",url_user+arr_dn[i]["userid"]); //用户名链接
node_dn.find(".dn_username_name").text(arr_dn[i]["username"]); //用户名
node_dn.find(".dn_username_signature").text(arr_dn[i]["signature"]); //用户签名
var digest = "";
var content = arr_dn[i]["content"];
if(content.length > 150){
digest=content.substring(0,150)+"... ";
}
else{
digest=content;
}
node_dn.find(".dn_content_digest").text(digest); //摘要
node_dn.find(".dn_content_digest").append("<a href='#'> 显示全部</a>");
node_dn.find(".dn_content_text").text(content); // 正文
node_dn.find(".dn_action_time").text(arr_dn[i]["posttime"]); // 发布时间
// 添加点击摘要事件
node_dn.find(".dn_content_digest").click(
function(){
var dn_right = $(this).parent().parent().parent();
dn_right.find(".dn_content_text").toggle();
dn_right.find(".dn_content_digest").toggle();
dn_right.parent().find(".dn_content_close1").toggle();
dn_right.parent().find(".dn_content_close2").toggle();
dn_right.parent().find(".dn_action").toggle();
var comm= dn_right.find(".dn_comm");
if(comm.css("display") == "block"){
comm.css("display","none");
}
return false; // !!
}
);
// 添加点击折叠事件
node_dn.find(".dn_content_close2,.dn_content_close1").click(
function(){
var dn_right = $(this).parent().parent();
dn_right.find(".dn_content_text").toggle();
dn_right.find(".dn_content_digest").toggle();
dn_right.parent().find(".dn_content_close1").toggle();
dn_right.parent().find(".dn_content_close2").toggle();
dn_right.parent().find(".dn_action").toggle();
var comm= dn_right.find(".dn_comm");
if(comm.css("display") == "block"){
comm.css("display","none");
}
return false; // !!
}
);
// 为评论、分享、举报按钮添加hover下划线效果
node_dn.find(".dn_action_comm,.dn_action_share,.dn_action_report").hover(
function(){
$(this).css("text-decoration","underline");
return false; // !!
}
,
function(){
$(this).css("text-decoration","none");
return false; // !!
}
);
// 为列表项添加点赞事件
node_dn.find(".dn_dianzan").click(
function(){
//alert('zan');
var dn_left = $(this).parent();
var zan_num = dn_left.find(".dn_zannum span");
var currzan = zan_num.text();
zan_num.text(parseInt(currzan)+1);
zan_num.animate({fontSize:"1.2em"},"fast");
$(this).animate({fontSize:"1.2em"},"fast");
zan_num.animate({fontSize:"1em"},"fast");
$(this).animate({fontSize:"1em"},"fast");
return false; // !!
}
);
// 加载评论，并处理评论项事件
function load_comm(dn_id,dn_comm_items,flag){
var load_url = "mockdata/commdata_";
if(flag == 1){
load_url = "mockdata/commdata_";
}
else{
load_url = "mockdata/commdata_";
}
$.ajax({
url:"mockdata/commdata_"+dn_id,
type: "get",//使用get方法访问后台
dataType: "json",//返回json格式的数据
async:false,
//data: "pageIndex=" + pageIndex,//要发送的数据
complete :function(){$("#load").hide();},//AJAX请求完成时隐藏loading提示
success: function(msg){//msg为返回的数据，在这里做数据绑定
var encoded = $.toJSON(msg);
ret_code =$.evalJSON(encoded).code;
arr_dn =$.evalJSON(encoded).data;
if(ret_code == "200"){
for(var i=0;i<arr_dn.length;i++){
var n_comm = t_dn_comm.clone();
n_comm.find(".dn_comm_id").attr("content",arr_dn[i]["ID"]);
n_comm.find(".dn_comm_item_left a").attr("href",url_user+arr_dn[i]["userid"]);
n_comm.find(".dn_comm_item_left img").attr("content",url_img+arr_dn[i]["avatar"]);
n_comm.find(".dn_comm_item_middle_username a").attr("href",url_user+arr_dn[i]["userid"]);
n_comm.find(".dn_comm_item_middle_username a span").text(arr_dn[i]["username"]);
n_comm.find(".dn_comm_item_mid_content span").text(arr_dn[i]["content"]);
n_comm.find(".dn_comm_foot_left span").text(arr_dn[i]["posttime"]);
n_comm.find(".dn_comm_zannum span").text(arr_dn[i]["zan"]);
// 为评论项添加hover效果
n_comm.hover(function(){
$(this).find(".dn_comm_item_mid_action").toggle();
});
// 为评论项添加点赞动画效果
var zan = n_comm.find(".dn_comm_dianzan");
zan.click(
function(){
var zan_num = $(this).parent().find(".dn_comm_zannum");
var currzan = zan_num.text();
zan_num.text(parseInt(currzan)+1);
zan_num.animate({fontSize:"1.2em"},"fast");
$(this).animate({fontSize:"1.2em"},"fast");
zan_num.animate({fontSize:"1em"},"fast");
$(this).animate({fontSize:"1em"},"fast");
return false;
}
);
dn_comm_items.append(n_comm);
}
}
else{
alert(ret_code);
}
}
});
};
// 加载某一项的热门评论
node_dn.find(".dn_action_comm").click(
function(){
var dn = $(this).parent().parent().parent().parent();
dn.find(".dn_comm").toggle();
var dn_comm_items = dn.find(".dn_comm_items");
dn_comm_items.empty();
var dn_id = dn.find(".dn_id").attr("content");
load_comm(dn_id,dn_comm_items,0);
return false; // !!
}
);
// 加载某一项的全部评论
node_dn.find(".dn_comm_showall_button").click(
function(){
var dn = $(this).parent().parent().parent().parent();
var dn_comm_items = dn.find(".dn_comm_items");
dn_comm_items.empty();
var dn_id = dn.find(".dn_id").attr("content");
load_comm(dn_id,dn_comm_items,1);
return false; // !!
}
);
//
layout_list.append(node_dn);
}
}
function fill_list(){
$.ajax({
url:"mockdata/listdata",
type: "get",//使用get方法访问后台
dataType: "json",//返回json格式的数据
async:false,
//data: "pageIndex=" + pageIndex,//要发送的数据
complete :function(){$("#load").hide();},//AJAX请求完成时隐藏loading提示
success: function(msg){//msg为返回的数据，在这里做数据绑定
var encoded = $.toJSON(msg);
ret_code =$.evalJSON(encoded).code;
arr_dn =$.evalJSON(encoded).data;
if(ret_code == "200"){
render_dn_list(arr_dn);
}
else{
alert(ret_code);
}
}
});
}
// 为加载数据按钮注册事件
$(".load_flag").click(function(){
if(num <= maxnum){
fill_list();
num++;
}
else{
load_flag.find("#load_flag_info").css("display","block");
load_flag.find("#load_flag_button").css("display","none");
}
});
fill_list();
});
Fake list data format: {
"code":"200",
"data":[
{
"ID":"1",
"fid":"1212",
"userid":"1001",
"avatar":"images/user.png",
"type":"阅读注解",
"from":"金刚经/第一品 法会因由分",
"username":"用户名",
"signature":"用户个性签名",
"digest":"内容摘要内容摘。要内容摘要,要内容要内容",
"content":"时长老须菩提。在大众中。即从座起。偏袒右肩。右膝着地。合掌恭敬。而白佛言。希有世尊。如来善护念诸菩萨。善付嘱诸菩萨。世尊。善男子。善女人。发阿耨多罗三藐三菩提心。应云何住，云何降伏其心。佛言。善哉善哉。须菩提。如汝所说。如来善护念诸菩萨。善付嘱诸菩萨。汝今谛听。当为汝说。善男子。善女人。发阿耨多罗三藐三菩提心。应如是住，如是降伏其心。唯然。世尊。愿乐欲闻。",
"posttime":"2015-09-08 12:00:09",
"zan":"100"
},
{
"ID":"3",
"fid":"1212",
"userid":"1001",
"avatar":"images/user.png",
"type":"阅读注解",
"from":"金刚经/第一品 法会因由分",
"username":"用户名",
"signature":"用户个性签名",
"digest":"内容摘要内容摘。要内容摘要,要内容要内容",
"content":"不于一佛二佛三四五佛而种善根。已于无量千万佛所种诸善根。闻是章句。乃至一念生净信者。须菩提。如来悉知悉见。是诸众生。得如是无量福德。何以故。是诸众生无复我相。人相。众生相。寿者相。无法相。亦无非法相。何以故。是诸众生。若心取相。则为著我人众生寿者。若取法相。即著我人众生寿者。何以故。若取非法相，即著我人众生寿者。是故不应取法。不应取非法。",
"posttime":"2015-09-08 12:00:09",
"zan":"100"
},
Fake comment data format: {
"code":"200",
"data":[
{
"ID":"100001",
"fid":"1212",
"userid":"1001",
"avatar":"images/user.png",
"username":"用户名",
"content":"时长老须菩提。善付嘱诸菩萨。汝今谛听。当为汝说。善男应如是住，如是降伏其心。唯然。世尊。愿乐欲闻。",
"posttime":"2015-09-08 12:00:09",
"zan":"100"
},
{
"ID":"100001",
"fid":"1212",
"userid":"1001",
"avatar":"images/user.png",
"username":"用户名",
"content":"时长老须菩提。善付嘱诸菩萨。汝今谛听。当为汝说。善男应如是住，如是降伏其心。唯然。世尊。愿乐欲闻。",
"posttime":"2015-09-08 12:00:09",
"zan":"100"
},
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