uni-app 82聊天页实时接收信息功能实现
Posted 2019ab
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了uni-app 82聊天页实时接收信息功能实现相关的知识，希望对你有一定的参考价值。
这一块主要将保存在缓存中的数据拿出来，然后就是发送消息，并且监听消息，监听到了将数据push到消息列表中
chat.vue
<template>
<view>
<!-- 导航栏 -->
<free-nav-bar :title="detail.name" :noreadnum="totalNoreadnum" showBack>
<free-icon-button slot="right"><text class="iconfont font-md" @click="openChat"></text>
</free-icon-button>
</free-nav-bar>
<!-- 聊天内容区域 -->
<scroll-view scroll-y="true" class="bg-light position-fixed left-0 right-0" style="bottom: 105rpx;"
:style="chatBodyBottom" :show-scrollbar="false">
<!-- <view v-for="(item,index) in list" :key="index"
:id="'chatItem_'+index">
<free-chat-item :item="item" :index="index" ref="chatItem"
:pretime=" index > 0 ? list[index-1].create_time : 0"
@long="long" @preview="previewImage"
:shownickname="currentChatItem.shownickname"
></free-chat-item>
</view> -->
<!-- 聊天信息列表组件 -->
<view v-for="(item,index) in list" :key="index" :id="'chatItem_'+index">
<free-chat-item :item="item" :index="index" ref="chatItem"
:pretime=" index > 0 ? list[index-1].create_time : 0" @long="long" @preview="previewImage">
</free-chat-item>
</view>
<!-- 聊天信息列表组件 -->
<!-- <view v-for="(item,index) in list" :key="index">
<free-chat-item :item="item" :index="index" :pretime="index > 0 ? list[index-1].create_time : 0"
@long="long" ref="chatItem" @preview="previewImage"></free-chat-item>
</view> -->
<!-- 右边 -->
<!-- <view class="flex align-start justify-end position-relative">
<div class="bg-chat-item p-2 rounded mr-3" style="max-width:500rpx;">
<text class="font-md">你好你好你好你好你好你好你好你好你好你好你好</text>
</div>
<view class="iconfont font-md position-absolute chat-right-icon"><text class="text-chat-item iconfont font-md"></text></view>
<free-avatar size="75" src="/static/images/demo/demo6.jpg"></free-avatar>
</view> -->
</scroll-view>
<!-- 扩展菜单 -->
<free-popup ref="action" bottom transformOrigin="center bottom" @hide="keyBoardHeight = 0" :mask="false">
<view style="height: 580rpx;" class="border-top border-light-secondary">
<swiper :indicator-dots="emoticonOrActionList.length>1" style="height:510rpx;">
<swiper-item class="row" v-for="(item,index) in emoticonOrActionList" :key="index">
<view class="col-3 flex flex-column align-center justify-center" style="height: 255rpx;"
v-for="(item2,index2) in item" :key="index2" @click="actionEvent(item2)">
<image :src="item2.icon" mode="widthFix" style="width: 100rpx;height: 100rpx;"></image>
<text class="font-sm text-muted mt-2">{{item2.name}}</text>
</view>
</swiper-item>
</swiper>
</view>
</free-popup>
<!-- 弹出层 -->
<free-popup ref="extend" maskColor bottom :bodyWidth="240" :bodyHeight="geMenusHeight" :tabbarHeight="105">
<view class="flex flex-column" style="width:240rpx;" :style="getMenusStyle">
<view v-for="(item,index) in menusList" :key="index" class="flex-1 flex align-center"
hover-class="bg-light" @click="clickEvent(item.event)">
<text class="font-md pl-3">{{item.name}}</text>
</view>
</view>
</free-popup>
<!-- #ifdef APP-PLUS-NVUE -->
<div class="position-fixed top-0 right-0 left-0 bottom-0" v-if="mode==='action' || mode==='emoticon'"
@click="clickPage" :style="'bottom:'+maskBottom+'px;'"></div>
<!-- #endif -->
<!-- 底部输入框 -->
<view class="position-fixed left-0 right-0 border-top flex align-center"
style="background-color: #F7F7F6;height: 105rpx;" :style="'bottom:'+keyBoardHeight+'px;'">
<free-icon-button @click="changeVoiceOrText">
<block v-if="mode === 'audio'">
<text class="iconfont font-lg"></text>
</block>
<block v-else>
<text class="iconfont font-lg"></text>
</block>
</free-icon-button>
<view class="flex-1">
<view v-if="mode==='audio'" class="rounded flex align-center justify-center" style="height: 80rpx;"
:class="isRecording?'bg-hover-light':'bg-white'" @touchstart="voiceTouchStart"
@touchend="voiceTouchEnd" @touchmove="voiceTouchMove" @touchcancel="voiceTouchCancel">
<text class="font">{{isRecording ? '松开 结束' : '按住 说话'}}</text>
</view>
<!-- 底部输入框 -->
<textarea v-else fixed class="bg-white rounded p-2 font-md" style="height: 50rpx;max-width: 450rpx;"
:adjust-position="false" v-model="text" @focus="mode = 'text'" />
<!-- @click="onInputClick" -->
<!-- <textarea v-else class="bg-white rounded p-1 font-md" style="height: 50rpx;max-width: 500rpx;"
:adjust-position="false" v-model="text" @focus="mode = 'text'" /> -->
</view>
<template v-if="text.length === 0">
<!-- 表情 -->
<free-icon-button><text class="iconfont font-lg"
@click="openActionOrEmoticon('emoticon')"></text></free-icon-button>
<!-- 扩展菜单 -->
<free-icon-button @click="openActionOrEmoticon('action')"><text class="iconfont font-lg"></text>
</free-icon-button>
</template>
<view v-else class="flex-shrink">
<!-- 发送按钮 -->
<!-- <view class="main-bg-color rounded flex align-center justify-center mr-2 px-2 pt-4" style="height: 70rpx;" @click="send('text')"> 发送
</view> -->
<free-main-button name="发送" @click="send('text')"></free-main-button>
</view>
</view>
<!-- 录音提示 -->
<view v-if="isRecording" class="position-fixed top-0 left-0 right-0 flex align-center justify-center"
style="bottom: 105rpx;">
<view class="rounded flex flex-column align-center justify-center"
style="width: 360rpx;height: 360rpx;background-color: rgba(0,0,0,0.5);">
<image src="/static/images/audio/audio/recording.gif" style="width: 150rpx;height: 150rpx;"></image>
<text class="font text-white mt-3">{{unRecord?'松开手指，取消发送':'手指上滑，取消发送'}}</text>
</view>
</view>
</view>
</template>
<script>
// #ifdef APP-NVUE
const domModule = weex.requireModule('dom');
// #endif
import freeNavBar from '@/components/free-ui/free-nav-bar.vue';
import freeIconButton from '@/components/free-ui/free-icon-button.vue';
import freeChatItem from '@/components/free-ui/free-chat-item.vue';
import freePopup from '@/components/free-ui/free-popup.vue';
import freeMainButton from '@/components/free-ui/free-main-button.vue';
import {
mapState,
mapMutations
} from 'vuex';
import auth from '@/common/mixin/auth.js';
export default {
mixins: [auth],
components: {
freeNavBar,
freeIconButton,
freeChatItem,
freePopup,
freeMainButton
},
watch: {
mode(newValue, oldValue) {
if (newValue !== 'action' && newValue !== 'emoticon') {
this.$refs.action.hide();
}
if (newValue !== 'text') {
uni.hideKeyboard()
}
}
},
// 生命周期
mounted() {
this.statusBarHeight = 0;
// 获取任务栏高度
// #ifdef APP-PLUS-NVUE
this.statusBarHeight = plus.navigator.getStatusbarHeight()
// #endif
this.navBarHeight = this.statusBarHeight + uni.upx2px(90)
// 监听键盘高度变化
uni.onKeyboardHeightChange((res) => {
if (this.mode !== 'action' && this.mode !== 'emoticon') {
this.keyBoardHeight = res.height;
}
if (this.keyBoardHeight > 0) {
this.pageToBottom()
}
})
// 注册发送音频事件
this.regSendVoiceEvent((url) => {
if (!this.unRecord) {
// 发送
this.send('audio', url, {
time: this.RecordTime
})
}
});
},
onLoad(e) {
if (!e.params) {
return this.backToast();
}
// 初始化
this.__init();
this.detail = JSON.parse(e.params)
// 创建聊天对象
this.chat.createChatObject(this.detail)
// 获取历史记录
this.list = this.chat.getChatdetail()
// 监听接收聊天信息
uni.$on('onMessage', (message)=>{
if(message.from_id === this.data.id && message.chat_type === this.detail.chat_type){
this.list.push(message);
// 置于顶部
}
})
// uni.$on('updateHistory', this.updateHistory)
},
destroyed() {
// 销毁聊天对象
this.chat.destoryChatObject();
// 销毁监听接收聊天消息
uni.$off('onMessage',()=>{})
},
computed: {
...mapState({
RECORD: state => state.audio.RECORD,
RecordTime: state => state.audio.RecordTime,
chat: state => state.user.chat,
totalNoreadnum:state=>state.user.totalNoreadnum
}),
// 所有信息的图片地址
imageList() {
var arr = [];
this.list.forEach((item) => {
if (item.type === 'emoticon' || item.type === 'image') {
arr.push(item.data)
}
})
return arr;
},
// 获取蒙版的位置
maskBottom() {
return this.keyBoardHeight + uni.upx2px(105)
},
// 动态获取菜单高度
geMenusHeight() {
let H = 100;
return this.menus.length * H;
},
// 获取菜单的样式
getMenusStyle() {
return `height:${this.geMenusHeight}rpx;`;
},
// 是否是本人
isdoSelf() {
// 获取本人id（假设拿到了）
let id = 1
let user_id = this.propIndex > -1 ? this.list[this.propIndex].user_id : 0
return user_id === id
},
// 获取操作菜单
menusList() {
return this.menus.filter(v => {
if (v.name === '撤回' && this.isDoSelf) {
return false;
} else {
return true;
}
})
},
// 聊天区域bottom
chatBodyBottom() {
return `bottom:${uni.upx2px(105) + this.keyBoardHeight}px;top:${this.navBarHeight}px`;
},
// 获取操作或者表情列表
emoticonOrActionList() {
if (this.mode === 'emoticon' || this.mode === 'action') {
return this[this.mode + 'List'];
} else {
return [uni-app 9.1聊天信息设置页