微信小程序实现简单评论功能


Posted in Javascript onNovember 28, 2018

本文实例为大家分享了微信小程序实现评论功能的具体代码,供大家参考,具体内容如下

具体直接看代码

wxml:

<view> 
<button bindtap='showTalks'>查看评论</button> 
</view>
 
 
<!-- 整个评论区 --> 
<view class='talks-layer' animation='{{talksAnimationData}}'>
<!-- 主要作用是点击后隐藏评论区 --> 
<view class='layer-white-space' bindtap='hideTalks'>
</view>
 
 
<!-- 评论区 --> 
<view class='talks' bindtouchstart='touchStart' bindtouchmove='touchMove'> 
<!-- 评论头部 --> 
<view class='talk-header'> 
<view class='talk-count'>{{talks.length}} 条评论</view> 
<image src='../../../images/close.png' class='talk-close' bindtap='hideTalks'></image> 
</view>
 
 
<!-- 评论体 --> 
<scroll-view class='talk-body' scroll-y="true" bindscrolltolower="onScrollLoad"> 
<view class='talk-item' wx:for="{{talks}}" wx:key="*this"> 
<view class='talk-item-left'>
<image class='talk-item-face' src='{{item.avatarUrl}}'></image>
</view>
<view class='talk-item-right'> 
<view class='right-left'> 
<text class='talk-item-nickname'>{{item.nickName}}</text> 
<text class='talk-item-time'>{{item.talkTime}}</text> 
</view> 
<text class='talk-item-content'>{{item.content}}</text>
 
 
</view> 
</view> 
</scroll-view>

 
<!-- 评论底部 --> 
<view class="cf-bg" catchtap="cemojiCfBg" style="display:{{cfBg ? 'block' : 'none'}}"></view> 
<view class=" {{isShow ?'footer_boxmovein' : 'talk-footer'}}"> 
<view class='footer_box'> 
<view class="emoji iconfont icon-emoji" catchtap="emojiShowHide"></view> 
<input class='talk-input' type='text' value='{{inputValue}}' bindblur="bindInputBlur" placeholder='有爱评论,说点儿好听的~'></input> 
<button class='fabu-input' bindtap='faBu'>发布</button> 
</view>
 
<view wx:if='{{isShow}}' class="emoji-box {{isShow ? 'emoji-move-in' : 'emoji-move-out'}} {{isLoad ? 'no-emoji-move' : ''}}"> 
<scroll-view scroll-y="true" bindscroll="emojiScroll" style="height:200px"> 
<block wx:for="{{emojis}}" wx:for-item="e" wx:key=""> 
<view class="emoji-cell">
<image class="touch-active" bindtap="emojiChoose" src="http://soupu.oss-cn-shanghai.aliyuncs.com/emoji/{{e.emoji}}.png" data-emoji="{{e.char}}" data-oxf="{{e.emoji}}"></image> 
</view> 
</block>
 
</scroll-view> 
</view> 
</view> 
</view> 
</view>

.wxss

page { 
height: 100%; 
overflow: hidden;
 
}
 
 
 
/* 框架 */

.talks-layer { 
position: absolute; 
bottom: -100%; 
height: 0; 
width: 100%; 
overflow: hidden; 
/* background-color: blue; */
 
}
 

.layer-white-space { 
height: 100%; 
width: 100%; 
background-color: #ccc; 
opacity: 0.5; 
/* background-color: green; */
 
}
 
 
.talks { 
position: absolute; 
height: 900rpx; 
width: 100%; 
bottom: 0rpx; 
background-color: #2f2d2e; 
border-top-left-radius: 3%; 
border-top-right-radius: 3%;
/* background-color: red; */
 
}
 
 
.talk-header { 
width: 100%; 
height: 70rpx; 
padding-top: 30rpx; 
text-align: center; 
}
 
 
.talk-body { 
height: 700rpx; 
}
 
 
.talk-footer { 
position: absolute; 
bottom: 0rpx; 
width: 100%; 
height: 100rpx; 
background-color: #151515; 
display: flex; 
justify-content: space-between; 
align-items: center; 
padding: 0 30rpx; 
box-sizing: border-box;
 
}
 
.footer_boxmovein{
position: absolute; 
bottom: 400rpx; 
width: 100%; 
height: 100rpx; 
z-index:1000; 
background-color: #151515; 
display: flex;
justify-content: space-between; 
align-items: center; 
padding: 0 30rpx; 
box-sizing: border-box; 
transition:all 0.6s;
 
}
 
.footer_box { 
display: flex;
justify-content: space-between;
align-items: center;
width: 100%;
 
}
 
 
 
/* 顶部元素 */ 
.talk-count { 
font-size: 26rpx; 
height: 40rpx; 
color: #6b696a;
}

 
.talk-close {
position: absolute;
top: 30rpx; 
right: 40rpx; 
width: 40rpx; 
height: 40rpx;
 
}
 
 
/* 中部元素 */ 
.talk-item { 
display: flex; 
flex-direction: row; 
align-items: flex-start; 
width: 100%; 
color: white;
 
}
 
 
.talk-item-left { 
display: flex; 
flex-direction: row; 
margin: 20rpx 30rpx; 
}
 
 
.talk-item-face { 
width: 80rpx; 
height: 80rpx;
border-radius: 50%;
 
}
 
 
.talk-item-right { 
width: 100%; 
border-bottom: solid 1rpx #6a6869; 
margin-right: 30rpx; 
/* margin-bottom: 30rpx; */ 
padding-bottom: 20rpx;
 
}
 
 
.right-left { 
display: flex; 
justify-content: space-between; 
align-items: center; 
margin: 10px 0;
 
}
 
 
.talk-item-nickname { 
font-size: 28rpx; 
color: #aaa8a9; 
}
 
 
.talk-item-time { 
font-size: 24rpx; 
color: #6a6869;
 
}
 
 
.talk-item-content {
display: block; 
font-size: 30rpx;
margin-right: 30rpx; 
width: 92%; 
white-space: pre-line; 
word-break: break-all; 
word-wrap: break-word;;
 
}
 
 
 
/* 底部元素 */ 
.talk-input { 
width: 100%; 
font-size: 30rpx; 
padding: 20rpx 0; 
padding-left: 30rpx; 
/* box-sizing: border-box; */ 
color: white; 
border-top-left-radius: 5%;
border-top-right-radius: 5%;
 
}
 

.fabu-input { 
background: red; 
font-size: 26rpx; 
color: #fff;
width: 127rpx; 
height: 60rpx; 
line-height: 60rpx;
text-align: center; 
border-radius: 30rpx; 
padding: 0;
 
}
  
.emoji {
background-color: #fff;
width: 30px; 
height: 30px; 
text-align: center; 
padding-top: 2px;
box-sizing: border-box; 
font-size: 20px;
 
}
 
.emoji-box {
position: absolute; 
bottom:-390rpx; 
left:0rpx; 
height: 200px; 
padding: 5px 16rpx; 
box-sizing: border-box; 
background:#000;
 
} 
 
.emoji-cell { 
width: 9.09%; 
height: 33px; 
display: inline-block;
 
}
 
.emoji-cell image { 
width: 23px;
height: 23px; 
padding: 5px;
border-radius: 3px;
 
}
 
 
.emoji-move-in { 
-webkit-animation: emoji-move-in 0.3s forwards; 
animation: emoji-move-in 0.3s forwards;
 
}
 
.emoji-move-out { 
-webkit-animation: emoji-move-out 0.3s forwards; 
animation: emoji-move-out 0.3s forwards;
 
}
 
 
.no-emoji-move { 
-webkit-animation: none; 
animation: none;
}
 
 
@-webkit-keyframes emoji-move-in { 
0% {
margin-bottom: -200px; 
}
 
100% {
margin-bottom: 0;
 
}
 
}
 
 
@keyframes emoji-move-in { 
0% { 
margin-bottom: -200px;
 
}
 
 
100% { 
margin-bottom: 0; 
}
 
}
 
 
@-webkit-keyframes emoji-move-out { 
0% { 
margin-bottom: 0;
 
} 
100% { 
margin-bottom: -200px;
 
}
 
}
 
@keyframes emoji-move-out { 
0% { 
margin-bottom: 0;
 
} 
 
100% { 
margin-bottom: -200px;
 
}
 
}
 
@-webkit-keyframes pd-left-move { 
0% { 
padding-left: 5px;
 
}
 
100% { 
padding-left: 15px;
 
}
 
} 
 
@keyframes pd-left-move { 
0% { 
padding-left: 5px;
 
} 
 
100% { 
padding-left: 15px;
}
 
}
 
.cf-bg {
position: fixed; 
top: 0; 
left: 0; 
bottom: 0; 
right: 0; 
background-color: transparent; 
z-index: 99;
 
}

.js

Page({
 data: {
 talks: [],
 touchStart: 0,
 inputValue: '',
 inputBiaoqing: '',
 faces: ['https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1535727304160&di=0cc9d01a4ae2deca5634c3136d5c01f6&imgtype=0&src=http%3A%2F%2Fimg5q.duitang.com%2Fuploads%2Fitem%2F201406%2F12%2F20140612202753_u4nG5.jpeg', 'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1535727304159&di=da2c1c4e868ee95f3cd65ffc6e24a456&imgtype=0&src=http%3A%2F%2Fimg4.duitang.com%2Fuploads%2Fitem%2F201505%2F01%2F20150501083603_yuTQc.jpeg', 'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1535727304156&di=7d46a1482a8e798a70d8d52320285b02&imgtype=0&src=http%3A%2F%2Fup.enterdesk.com%2Fedpic_source%2F7b%2Ff9%2F01%2F7bf901db9091dff00a20d474c83afc45.jpg'],
 names: ['贝贝', '晶晶', '欢欢', '妮妮'],
 isShow: false, //控制emoji表情是否显示 
 isLoad: true, //解决初试加载时emoji动画执行一次
 cfBg: false,
 emojiChar: "☺-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-✈-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?",
 //0x1f---
 emoji: [
  "60a", "60b", "60c", "60d", "60f",
  "61b", "61d", "61e", "61f",
  "62a", "62c", "62e",
  "602", "603", "605", "606", "608",
  "612", "613", "614", "615", "616", "618", "619", "620", "621", "623", "624", "625", "627", "629", "633", "635", "637",
  "63a", "63b", "63c", "63d", "63e", "63f",
  "64a", "64b", "64f", "681",
  "68a", "68b", "68c",
  "344", "345", "346", "347", "348", "349", "351", "352", "353",
  "414", "415", "416",
  "466", "467", "468", "469", "470", "471", "472", "473",
  "483", "484", "485", "486", "487", "490", "491", "493", "498", "6b4"
 ],
 emojis: [], //qq、微信原始表情
 alipayEmoji: [], //支付宝表情
 },
 
 onLoad: function() {
 var em = {},
  that = this,
  emChar = that.data.emojiChar.split("-");
 var emojis = []
 that.data.emoji.forEach(function(v, i) {
  em = {
  char: emChar[i],
  emoji: "0x1f" + v
  };
  emojis.push(em)
 });
 that.setData({
  emojis: emojis
 })
 },
 //解决滑动穿透问题
 emojiScroll: function(e) {
 console.log(e)
 },
 //点击表情显示隐藏表情盒子
 emojiShowHide: function() {
 this.setData({
  isShow: !this.data.isShow,
  isLoad: false,
  cfBg: !this.data.false
 })
 },
 //表情选择
 emojiChoose: function(e) {
 console.log(e)
 //当前输入内容和表情合并
 // let value = e.currentTarget.dataset.emoji;
 this.data.inputBiaoqing += e.currentTarget.dataset.emoji;
 console.log(this.data.inputBiaoqing)
 this.setData({
  inputValue: this.data.inputBiaoqing
 })
 },
 //点击emoji背景遮罩隐藏emoji盒子
 cemojiCfBg: function() {
 console.log('womenlai')
 this.setData({
  isShow: false,
  cfBg: false
 })
 },
 onReady: function() {
 // 评论弹出层动画创建
 this.animation = wx.createAnimation({
  duration: 400, // 整个动画过程花费的时间,单位为毫秒
  timingFunction: "ease", // 动画的类型
  delay: 0 // 动画延迟参数
 })
 },
 showTalks: function() {
 // 加载数据
 this.loadTalks();
 // 设置动画内容为:使用绝对定位显示区域,高度变为100%
 this.animation.bottom("0rpx").height("100%").step()
 this.setData({
  talksAnimationData: this.animation.export()
 })
 },
 
 hideTalks: function() {
 // 设置动画内容为:使用绝对定位隐藏整个区域,高度变为0
 this.animation.bottom("-100%").height("0rpx").step()
 this.setData({
  talks: [],
  talksAnimationData: this.animation.export()
 })
 },
 
 // 加载数据
 loadTalks: function() {
 // 随机产生一些评论
 wx.showNavigationBarLoading();
 let that = this;
 let talks = [];
 let faces = ['https://ss0.bdstatic.com/94oJfD_bAAcT8t7mm9GUKT-xh_/timg?image&quality=100&size=b4000_4000&sec=1535701703&di=bfde939cc559b0f8edcbfd1adb6e667d&src=http://img5q.duitang.com/uploads/item/201505/15/20150515205520_iWF2U.jpeg',
  'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1535711703167&di=ce7a08b889137a70f7b4568e13df0e4d&imgtype=0&src=http%3A%2F%2Fd.hiphotos.baidu.com%2Fzhidao%2Fpic%2Fitem%2F6f061d950a7b02088811236964d9f2d3562cc85a.jpg',
  'https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1535711703162&di=8ec21b75cb44de532f8be29300f075b0&imgtype=0&src=http%3A%2F%2Fpic36.photophoto.cn%2F20150710%2F0005018347189196_b.jpg',
 ];
 let names = ['佳佳', '晶晶', '欢欢', '妮妮', '娜娜', '锅锅'];
 let contents = ['为什么你总是对我不理不睬呢', '干嘛老是不见你了', '我们都有字节的梦想', '你有什么资格不努力呢'];
 let talktime = '刚刚';
 console.log(talktime)
 talks = talks.concat(that.data.talks);
 
 // 随机产生10条评论
 for (var i = 0; i < 10; i++) {
  talks.push({
  avatarUrl: faces[Math.floor(Math.random() * faces.length)],
  nickName: names[Math.floor(Math.random() * names.length)],
  content: contents[Math.floor(Math.random() * contents.length)],
  talkTime: talktime
  });
 }
 this.setData({
  talks: talks,
  talksAnimationData: that.animation.export()
 })
 wx.hideNavigationBarLoading();
 },
 
 onScrollLoad: function() {
 // 加载新的数据
 this.loadTalks();
 },
 //下拉评论框隐藏
 touchStart: function(e) {
 let touchStart = e.touches[0].clientY;
 this.setData({
  touchStart,
 })
 },
 touchMove: function(e) {
 // console.log(this.data.touchStart)
 let touchLength = e.touches[0].clientY - this.data.touchStart;
 console.log(touchLength - 100)
 if (touchLength > 100) {
  this.animation.bottom("-100%").height("0rpx").step()
  this.setData({
  talks: [],
  talksAnimationData: this.animation.export(),
  })
 }
 },
 //输入框失去焦点时触发
 bindInputBlur: function(e) {
 console.log(e)
 console.log(this.data.inputBiaoqing)
 this.data.inputValue = e.detail.value + this.data.inputBiaoqing;
 },
 //点击发布,发布评论
 faBu: function() {
 let that = this;
 this.data.talks.unshift({
  avatarUrl: this.data.faces[Math.floor(Math.random() * this.data.faces.length)],
  nickName: this.data.names[Math.floor(Math.random() * this.data.names.length)],
  content: this.data.inputValue,
  talkTime: '刚刚'
 })
 that.data.inputValue = '';
 that.setData({
  talks: that.data.talks,
  inputValue: that.data.inputValue,
  talksAnimationData: that.animation.export()
 })
 
 }
})

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持三水点靠木。

Javascript 相关文章推荐
把textarea中字符串里含有的回车换行替换成&amp;lt;br&amp;gt;的javascript代码
Apr 20 Javascript
js限制文本框为整数和货币的函数代码
Oct 13 Javascript
JQuery操作三大控件(下拉,单选,复选)的方法
Aug 06 Javascript
jquery实现手机发送验证码的倒计时代码
Feb 12 Javascript
JavaScript两种跨域技术全面介绍
Apr 16 Javascript
jQuery CSS()方法改变现有的CSS样式
Aug 20 Javascript
JavaScript实现在标题栏上显示当前日期的方法
Mar 19 Javascript
JS判断输入字符串长度实例代码(汉字算两个字符,字母数字算一个)
Aug 02 Javascript
微信小程序中this.data与this.setData的区别详解
Sep 17 Javascript
vue 优化CDN加速的方法示例
Sep 19 Javascript
Vue路由守卫及页面登录权限控制的设置方法(两种)
Mar 31 Javascript
JS如何操作DOM基于表格动态展示数据
Oct 15 Javascript
微信小程序实现省市区三级地址选择
Jun 21 #Javascript
Vue一次性简洁明了引入所有公共组件的方法
Nov 28 #Javascript
react脚手架如何配置less和ant按需加载的方法步骤
Nov 28 #Javascript
微信小程序仿知乎实现评论留言功能
Nov 28 #Javascript
微信小程序实现评论功能
Nov 28 #Javascript
在 Angular-cli 中使用 simple-mock 实现前端开发 API Mock 接口数据模拟功能的方法
Nov 28 #Javascript
小程序点击图片实现自动播放视频
May 29 #Javascript
You might like
自己前几天写的无限分类类
2007/02/14 PHP
使用PHP提取视频网站页面中的FLASH地址的代码
2010/04/17 PHP
php的ajax框架xajax入门与试用介绍
2010/12/19 PHP
ThinkPHP中__initialize()和类的构造函数__construct()用法分析
2014/11/29 PHP
PHP中常用的数组操作方法笔记整理
2016/05/16 PHP
PHP框架Laravel中实现supervisor执行异步进程的方法
2017/06/07 PHP
通过MSXML2自动获取QQ个人头像及在线情况(给初学者)
2007/01/22 Javascript
javascript Discuz代码中的msn聊天小功能
2008/05/25 Javascript
js写的评论分页(还不错)
2013/12/23 Javascript
如何编写高质量JS代码
2014/12/28 Javascript
JQuery页面地址处理插件jqURL详解
2015/05/03 Javascript
jQuery文本框得到与失去焦点动态改变样式效果
2016/09/08 Javascript
Javascript json object 与string 相互转换的简单实现
2016/09/27 Javascript
详解vue-Resource(与后端数据交互)
2017/01/16 Javascript
react.js CMS 删除功能的实现方法
2017/04/17 Javascript
MUI 实现侧滑菜单及其主体部分上下滑动的方法
2018/01/25 Javascript
vue导出html、word和pdf的实现代码
2018/07/31 Javascript
Vue-CLI 3.X 部署项目至生产服务器的方法
2019/03/22 Javascript
JavaScript 严格模式(use strict)用法实例分析
2020/03/04 Javascript
js 解析 JSON 数据简单示例
2020/04/21 Javascript
js实现鼠标拖曳效果
2020/12/30 Javascript
利用Python脚本在Nginx和uwsgi上部署MoinMoin的教程
2015/05/05 Python
Python出现segfault错误解决方法
2016/04/16 Python
python 简单备份文件脚本v1.0的实例
2017/11/06 Python
python爬虫爬取网页表格数据
2018/03/07 Python
Django的Modelforms用法简介
2019/07/27 Python
python collections模块的使用
2020/10/16 Python
python3爬虫中多线程的优势总结
2020/11/24 Python
整理HTML5移动端开发的常用触摸事件
2016/04/15 HTML / CSS
Cotton On美国网站:澳洲时装连锁品牌
2016/10/25 全球购物
JPA面试常见问题
2016/11/14 面试题
个人自查自纠材料
2014/10/14 职场文书
党员组织生活会发言材料
2014/10/17 职场文书
2015新年寄语(一句话)
2014/12/08 职场文书
导游词之台湾安平古堡
2019/12/25 职场文书
企业内部管理控制:采购授权审批制度范本
2020/01/19 职场文书