uni-app 190扫一扫加入群聊功能（二）

/pages/chat/scan-add/scan-add.nvue

<template>
  <view class="page">
    <!-- 导航栏 -->
    <free-nav-bar title="加入群聊" showBack :showRight="false"></free-nav-bar>
    
    <view class="p-5">
      <view class="bg-white rounded p-4">
        <view class="flex align-center">
          <free-avatar :src="detail.avatar || '/static/images/demo/demo6.jpg'"></free-avatar>
          <view class="pl-4 flex flex-column">
            <text class="font-md">{{detail.name}}</text>
            <text class="font-sm text-muted" >群成员数：{{detail.users_count}}</text>
          </view>
        </view>
        <view class="flex flex-column align-center justify-center">
          <image :src="src" mode="" style="width: 550rpx;height: 550rpx;" class="bg-secondary mb-4"></image>
          <text class="font text-light-muted">扫一扫上面的二维码，加我的微信</text>
        </view>
      </view>
      
      <view class="py-3 flex align-center justify-center main-bg-color" hover-class="main-bg-hover-color" @click="join"> 
        <text class="font-md text-white">加入群聊</text>
      </view>
      
    </view>
  </view>
</template>

<script>
  import freeNavBar from '@/components/free-ui/free-nav-bar.vue';
  import freeAvatar from '@/components/free-ui/free-avatar.vue';
  import {mapState} from 'vuex';
  import $C from '@/common/free-lib/config.js';
  export default {
    components:{
      freeNavBar,
      freeAvatar
    },
    computed:{
      ...mapState({
        user:state=>state.user.user
      })
    },
    data() {
      return {
        detail:{
          id:0,
          name:"",
          avatar:'',
          users_count:0
        }
      }
    },
    onl oad(e) {
      if(e.params){
        
        this.detail = JSON.parse(decodeURIComponent(e.params));
        
      }
    },
    methods: {
      join(){
        
      }
    }
  }
</script>

<style>

</style>

/components/free-ui/free-nav-bar.vue

<template>
  <view>
    <view :class="getClass">
      <!-- 状态栏 -->
      <view :style="'height:'+statusBarHeight+'px'"></view>
      <!-- 导航 -->
      <view class="w-100 flex align-center justify-between" style="height: 90rpx;">
        <!-- 左边 -->
        <view class="flex align-center">
          <!-- 返回按钮 -->
          <!-- #ifndef MP -->
          <free-icon-button v-if="showBack" @click="back"><text class="iconfont font-md"></text></free-icon-button>
          <!-- #endif -->
          <!-- 标题 -->
          <slot>
            <text v-if="title" class="font-md ml-3">{{getTitle}}</text>
          </slot>
        </view>
        <!-- 右边 -->
        <view class="flex align-center" v-if="showRight">
          <slot name="right">
            <free-icon-button @click="search"><text class="iconfont font-md"></text></free-icon-button>
            <free-icon-button @click="openExtend"><text class="iconfont font-md"></text></free-icon-button>
          </slot>
        </view>
      </view>
    </view>
    <!-- 占位 -->
    <view v-if="fixed" :style="fixedStyle"></view>
    
    <!-- 扩展菜单 -->
    <free-popup v-if="showRight" ref="extend" :bodyWidth="320" :bodyHeight="525"
    bodyBgColor="bg-dark" transformOrigin="right top">
      <view class="flex flex-column" 
      style="width: 320rpx;height: 525rpx;">
        <view class="flex-1 flex align-center" 
        hover-class="bg-hover-dark"
        v-for="(item,index) in menus"
        :key="index"
        @click="clickEvent(item)">
          <text class="iconfont pl-3 pr-2 font-md text-white">{{item.icon}}</text>
          <text class="font-md text-white">{{item.name}}</text>
        </view>
      </view>
    </free-popup>
    
    
  </view>
</template>

<script>
  import freeIconButton from "./free-icon-button.vue"
  import freePopup from "./free-popup.vue"
  export default {
    props: {
      showBack:{
        type:Boolean,
        default:false
      },
      backEvent:{
        type:Boolean,
        default:true
      },
      title: {
        type: [String,Boolean],
        default:false 
      },
      fixed:{
        type:Boolean,
        default:true
      },
      noreadnum:{
        type:[Number,String],
        default:0
      },
      bgColor:{
        type:String,
        default:"bg-light"
      },
      showRight:{
        type:Boolean,
        default:true
      }
    },
    components:{
      freeIconButton,
      freePopup
    },
    data() {
      return {
        statusBarHeight:0,
        navBarHeight:0,
        menus:[
          {
            name:"发起群聊",
            event:"navigateTo",
            path:"/pages/mail/mail/mail?type=createGroup",
            icon:"\ue633"
          },
          {
            name:"添加好友",
            event:"navigateTo",
            path:"/pages/common/search/search",
            icon:"\ue65d"
          },
          // #ifndef H5
          {
            name:"扫一扫",
            event:"scan",
            icon:"\ue614"
          },
          // #endif
          {
            name:"收付款",
            event:"",
            icon:"\ue66c"
          },
          {
            name:"帮助与反馈",
            event:"",
            icon:"\ue66c"
          }
        ],
      }
    },
    mounted() {
      // #ifdef APP-PLUS-NVUE
      this.statusBarHeight = plus.navigator.getStatusbarHeight()
      // #endif
      this.navBarHeight = this.statusBarHeight + uni.upx2px(90)
    },
    computed: {
      fixedStyle() {
        return `height:${this.navBarHeight}px`
      },
      getTitle(){
        let noreadnum = this.noreadnum > 0 ? '('+this.noreadnum+')' : ''
        return this.title + noreadnum
      },
      getClass(){
        let fixed = this.fixed?'fixed-top':''
        return `${fixed} ${this.bgColor}` 
      }
    },
    methods: {
      openExtend() {
        this.$refs.extend.show(uni.upx2px(415),uni.upx2px(150))
      },
      // 返回
      back(){
        if(this.backEvent){
          return uni.navigateBack({
            delta: 1
          });
        }
        this.$emit('back')
      },
      search(){
        uni.navigateTo({
          url: '/pages/common/search/search'
        });
      },
      clickEvent(item){
        this.$refs.extend.hide()
        switch (item.event){
          case 'navigateTo':
          uni.navigateTo({
            url: item.path,
          });
            break;
            case 'scan':
          uni.scanCode({
            success:(res)=>{
              if(res.scanType === 'QR_CODE'){
                let result = JSON.parse(res.result);
                switch(result.type){
                  case 'group':
                  $H.post('/group/checkrelation',{
                    id:parseInt(result.id)
                  }).then(res2=>{
                    if(res2.status){
                      // 已经在群内
                    }else{
                      // 加入群聊
                      uni.navigateTo({
                        url:'/pages/chat/scan-add/scan-add?params='+encodeURIComponent(JSON.stringify(res2.group))
                      });
                    }
                  })
                  break;
                  default:
                  uni.showToast({
                    title: '靓仔，自己发挥',
                    icon: 'none'
                  });
                  break;
                }
              }
            }
          })
          break;
          default:
          uni.showToast({
            title: '靓仔，自己发挥',
            icon: 'none'
          });
            break;
        }
      }
    },
  }
</script>

<style>
</style>

感谢大家观看，我们下次见