一、介绍
运用uniapp+vue+vuex+swiper+unipop等技术开发的仿微信原生app聊天室|仿微信聊天界面实例项目uniapp-chatroom，实现了发送图文消息、表情(gif图)，图片预览、地图位置、长按菜单、红包/钱包、仿微信朋友圈等功能。
二、测试效果
h5 + 小程序 + app端测试效果如下，实测多端效果均为一致。(后续大图统一展示app端)
二、技术选型
- 编辑器：hbuilder x
- 技术框架：uni-app + vue
- 状态管理：vuex
- iconfont图标：阿里字体图标库
- 自定义导航栏 + 底部tabbar
- 弹窗组件：unipop（基于uni-app封装模态弹窗）
- 测试环境：h5端 + 小程序 + app端（三端均兼容）
- 高德地图：vue-amap
◆ 顶部导航栏headerbar
顶部导航栏采用的是自定义模式，具体可参看这篇文章：
在pages.json里面配置globalstyle，将navigationstyle设为custom时，原生顶部导航栏不显示，这时就能自定义导航栏
"globalstyle": {"navigationstyle": "custom"}
◆ 引入公共样式/组件及全局弹窗
import vue from 'vue'
import app from './app'
// >>>引入css
import './assets/fonts/iconfont.css'
import './assets/css/reset.css'
import './assets/css/layout.css'
// >>>引入状态管理
import store from './store'
vue.prototype.$store = store
// >>>引入公共组件
import headerbar from './components/header/header.vue'
import tabbar from './components/tabbar/tabbar.vue'
import popupwindow from './components/popupwindow.vue'
vue.component('header-bar', headerbar)
vue.component('tab-bar', tabbar)
vue.component('popup-window', popupwindow)
// >>>引入unipop弹窗组件
import unipop from './components/unipop/unipop.vue'
vue.component('uni-pop', unipop)
vue.config.productiontip = false
app.mptype = 'app'
const app = new vue({
...app
})
app.$mount()
◆ vuex + uniapp登录验证
import vue from 'vue'
import vuex from 'vuex'
vue.use(vuex)
export default new vuex.store({
state: {
user: uni.getstoragesync('user'),
token: uni.getstoragesync('token'),
},
mutations: {
// 存储token
set_token(state, data) {
state.token = data
uni.setstoragesync('token', data)
},
// 存储用户名
set_user(state, data) {
state.user = data
uni.setstoragesync('user', data)
},
...
},
})
<script>
import { mapstate, mapmutations } from 'vuex'
import util from '../../utils/util.js'
export default {
data() {
return {
formobj: {},
}
},
computed: {
...mapstate(['user', 'token'])
},
mounted() {
// 判断是否有登录
if(this.user){
uni.redirectto({url: '/pages/index/index'})
}
},
methods: {
// 提交表单
handlesubmit(e) {
...
}
}
}
</script>
◆ 仿微信朋友圈透明导航栏
通过onpagescroll函数实现自定义导航上下滑动自动调整导航栏的透明度，滑动到距离顶部200 效果如下图二
/**
* @tpl 朋友圈模板
*/
<template>
<view class="flexbox flex_col">
<header-bar :isback="true" title="朋友圈" :bgcolor="{background: headerbarbackground}" transparent>
<text slot="back" class="uni_btnico iconfont icon-arrl"></text>
<text slot="iconfont" class="uni_btnico iconfont icon-publish mr_5" @tap="handlepublish"></text>
</header-bar>
<view class="uni__scrollview flex1">
<view class="uni-friendzone">
...
</view>
</view>
</view>
</template>
<script>
export default {
data() {
return {
headerbarbackground: 'transparent'
}
},
onpagescroll : function(e) {
// console.log("滚动距离为：" + e.scrolltop);
this.headerbarbackground = 'rgba(65,168,99,'+e.scrolltop / 200+')'
},
methods: {
...
}
}
</script>
<style scoped>
</style>
◆ uniapp实现聊天页面滚动至底部
在h5端将聊天页面滚动到底部很好实现，小程序中通过设置scroll-view属性scroll-into-view的值也能实现，可是在uni-app里面怎么将聊天信息滚动至底部呢？
uni-app通过判断聊天内容高度和scroll-view高度的大小设置滚动距离
<scroll-view id="scrollview" scroll-y="true" :scroll-top="scrolltop" style="height: 100%;">
<view class="uni-chatmsgcnt" id="msglistview">
<view class="msgitem">xxx</view>
<view class="msgitem">xxx</view>
<view class="msgitem">xxx</view>
...
</view>
</scroll-view>
export default {
data() {
return {
scrolltop: 0,
...
}
},
mounted() {
this.scrolltobottom()
},
updated() {
this.scrolltobottom()
},
methods: {
// 滚动至聊天底部
scrolltobottom(t) {
let that = this
let query = uni.createselectorquery()
query.select('#scrollview').boundingclientrect()
query.select('#msglistview').boundingclientrect()
query.exec((res) => {
// console.log(res)
if(res[1].height > res[0].height){
that.scrolltop = res[1].height - res[0].height
}
})
},
...
}
}
◆ uniapp聊天代码片段
<script>
const emotionjson = require('./mock-emotion.js')
const messagejson = require('./mock-chat.js')
export default {
data() {
return {
scrolltop: 0,
showfoottoolbar: false,
showemotionchoose: false,
editortext: '',
editorlastcursor: null,
// 表情json
emotionlist: emotionjson,
// 消息记录
messagelist: messagejson,
// 预览图片临时数组
previewimgarray: [],
}
},
mounted() {
this.scrolltobottom()
},
updated() {
this.scrolltobottom()
},
methods: {
// 滚动至聊天底部
scrolltobottom(t) {
let that = this
let query = uni.createselectorquery()
query.select('#scrollview').boundingclientrect()
query.select('#msglistview').boundingclientrect()
query.exec((res) => {
// console.log(res)
if(res[1].height > res[0].height){
that.scrolltop = res[1].height - res[0].height
}
})
},
// 点击聊天消息区域
msgpaneltaped() {
if(!this.showfoottoolbar) return
this.showfoottoolbar = false
},
// 表情、选择区切换
swtemotionchooseview(bool) {
this.showfoottoolbar = true
this.showemotionchoose = bool
},
...
// 点击表情
handleemotiontaped(emoj) {
if(emoj == 'del') return
// 在光标处插入表情
let startstr = this.editortext.substr(0, this.editorlastcursor)
let endstr = this.editortext.substr(this.editorlastcursor)
this.editortext = startstr + `${emoj}` + endstr
},
// >>> 【选择区功能模块】------------------------------------------
// 选择图片
handlelaunchimage() {
let that = this
let msglist = this.messagelist
let len = msglist.length
// 消息队列
let data = {
id: `msg${++len}`,
msgtype: 5,
isme: true,
avator: '/static/uimg/u__chat_img1.jpg',
author: 'king',
msg: '',
imgsrc: '',
videosrc: ''
}
uni.chooseimage({
count: 1,
sourcetype: ['album'],
success: function(res){
// console.log(res)
// console.log(res.tempfilepaths)
data.imgsrc = res.tempfilepaths.tostring()
msglist = msglist.concat(data)
that.messagelist = msglist
}
})
},
...
// 位置
handlechooselocation() {
let that = this
let msglist = this.messagelist
let len = msglist.length
// 消息队列
let data = {
id: `msg${++len}`,
msgtype: 8,
isme: true,
avator: '/static/uimg/u__chat_img1.jpg',
author: 'king',
msg: '',
imgsrc: '',
videosrc: ''
}
uni.chooselocation({
success: (res) => {
console.log(res)
// 插入消息
data.msg = {
name: res.name,
address: res.address,
latitude: res.latitude,
longitude: res.longitude
}
msglist = msglist.concat(data)
that.messagelist = msglist
}
})
},
}
}
</script>
以上就是基于uniapp开发仿微信聊天室的介绍，希望大家能喜欢
