基于uni-app+vue+vuex+uniPop+swiper等技术开发的仿微信聊天室uniapp-chatroom项目,相似vue及小程序api语法使开发更加方便,实现了发送图文消息、表情(gif动图),图片预览、地图位置、红包、仿微信朋友圈等功能css
在H5 / 小程序 / App端测试效果以下 (后续大图统一展现App端)html
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()
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() { // 判断是否有登陆 if(this.user){ uni.redirectTo({url: '/pages/index/index'}) } }, methods: { // 提交表单 handleSubmit(e) { ... } } } </script>
如何实现微信朋友圈页面向下滚动,顶部导航栏由透明变背景色,经过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vue
/** * @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>
在uni-app将聊天信息滚动到底部有些很差实现,能够借助scroll-view组件scroll-into-view属性,不过只能设置一次,不能动态设置。
只能经过动态改变scroll-top来实现
uni-app经过判断聊天内容高度和scroll-view高度的大小设置滚动距离ios
<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 } }) }, ... } }
基于uniapp开发聊天室的介绍就到这里,后续继续为你们分享实战项目,但愿多多支持。😏😏git
项目中用到的自定义弹窗、自定义导航栏可参看下面连接。
uni-app自定义Modal弹窗组件|仿ios、微信弹窗效果
uni-app自定义导航栏按钮|uniapp仿微信顶部导航条vuex