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604 lines
14 KiB
604 lines
14 KiB
2 months ago
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<template>
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<view class="kk-printer">
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<view class="kk-printer-btn" @tap="handlePrintTap" style="color:#FFF;">
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{{isPrinting?printingText:defaultText}}
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</view>
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<view class="kk-shadow" :class="isShowSearch?'show':''" @tap="handleSearchClose">
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<view class="kk-modal" @tap.stop="doNothing">
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<view class="kk-search-device">
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<view class="kk-btn-wrap">
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<view class="kk-btn-item confirm-btn" @tap="sousuo" v-if="!isSearching">
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搜索设备
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</view>
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<view class="kk-btn-item confirm-btn" v-else>
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搜索中...
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</view>
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<view class="kk-btn-item" @tap="stopSearchBtnTap">
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停止搜索
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</view>
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</view>
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<view class="kk-devices-wrap">
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<view class="empty-wrap" v-if="devicesList.length <= 0">
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<view class="empty-icon"></view>
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<view class="empty-text">无可搜索到的设备</view>
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</view>
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<view class="" v-else>
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<view class="kk-devices-item" v-for="(item,index) in devicesList" :key="index"
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@tap="lianejieshebei(item.deviceId)">
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<view class="name" style="color:#000;display: flex;flex-direction: column;">
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<text>设备名称：</text>
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<text>{{item.name?item.name:'未命名'}}</text>
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</view>
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<!-- <view class="rssi">
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<text>信号强度：</text>
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<text>({{item.RSSI}})</text>
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</view> -->
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</view>
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</view>
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</view>
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</view>
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</view>
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</view>
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</view>
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</template>
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<script>
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import gbk from '@/components/kk-printer/utils/printUtil-GBK.js';
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import * as blesdk from './utils/bluetoolth';
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import util from './utils/util.js';
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export default {
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data() {
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return {
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//是否正在打印
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isPrinting: false,
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//是否正在搜索设备
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isSearching: false,
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//是否显示蓝牙列表
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isShowSearch: false,
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//按蓝牙名过滤
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filterName: '',
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//按信号过滤
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filterRSSI: -95,
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//设备列表
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devicesList: [],
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//打印图片断开连接等待时间
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picWaitTime:0,
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//连接的设备ID
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deviceId: '',
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//根据设备ID获取的服务
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services: '',
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//获取特征值时返回的三要素
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serviceId: '',
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writeId: '',
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readId: '',
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iosNo: false,
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deviceType: 'ios'
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}
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},
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props: {
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//按钮默认文字
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defaultText: {
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type: String,
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default: '打印'
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},
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//按钮打印中的文字
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printingText: {
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type: String,
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default: '打印中...'
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},
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bufferData: {
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type: Array,
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require: true
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},
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roomcode: {
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type: String,
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require: true
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},
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CustName: {
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type: String,
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require: true
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},
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roomid: {
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type: String,
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require: true
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}
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},
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mounted() {
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},
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onLoad() {
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},
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beforeDestroy() {
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this.stopSearchBtnTap();
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},
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methods: {
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doNothing() {
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return;
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},
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//点击打印按钮
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handlePrintTap() {
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let that = this
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uni.showLoading({
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mask: true,
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title: '打印中...'
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});
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uni.getSystemInfo({
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success(res) {
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that.deviceType = res.osName
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},fail(err){
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}
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})
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// 初始化蓝牙模块
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wx.openBluetoothAdapter({ //111
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mode: 'central',
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success: (res2) => {
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that.sousuo()
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},
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fail: (res) => {
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if (res.errCode == '10001') {
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uni.showToast({
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duration: 2000,
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title: "请打开蓝牙后，再进行连接",
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icon: 'none',
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mask: true
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})
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} else {
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that.tui.toast('连接失败，请重启蓝牙或删除小程序重新进入-1')
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that.isShowSearch = true
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}
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setTimeout(res => {
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uni.hideLoading();
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}, 2000)
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}
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})
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},
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// 开始搜索附近的蓝牙外围设备
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sousuo() {
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let that = this;
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this.devicesList = []
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wx.startBluetoothDevicesDiscovery({ //222
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success(res3) {
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that.jiantingshebei()
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},
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fail(err) {
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that.tui.toast('连接失败，请重启蓝牙或删除小程序重新进入-2',err)
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wx.closeBLEConnection({
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deviceId: uni.getStorageSync('deviceId'),
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success(res2) {
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},fail(err1){
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}
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})
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wx.closeBluetoothAdapter({
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success(res) {
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},fail(err2){
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}
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})
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uni.removeStorageSync('deviceId')
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that.handlePrintTap()
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that.isShowSearch = true
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setTimeout(res => {
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uni.hideLoading();
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}, 2000)
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}
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})
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},
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//停止搜索蓝牙设备
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stopSearchBtnTap() {
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wx.stopBluetoothDevicesDiscovery()
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},
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/**
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* jiantingshebei方法，判断缓存中有没有deviceId等数据的时候，
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* 有： 直接拿到缓存中的deviceId等，直接请求 wx.createBLEConnection
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* 没有：才会调用 wx.onBluetoothDeviceFound 搜索
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*/
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jiantingshebei() {
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let that = this;
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if (uni.getStorageSync('deviceId')) {
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// that.huoqufuwu(uni.getStorageSync('deviceId'))
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that.lianejieshebei(uni.getStorageSync('deviceId'))
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} else {
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uni.hideLoading();
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that.isShowSearch = true
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// 监听扫描到新设备事件
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wx.onBluetoothDeviceFound((res4) => { //333
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res4.devices.forEach((device) => {
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if (!device.name && !device.localName) {
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return
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}
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that.devicesList.push(device)
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})
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})
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}
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},
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lianejieshebei(deviceId) {
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let that = this;
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uni.showLoading({
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mask: true,
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title: '加载中...'
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});
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let timerId = setTimeout(() => {
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wx.closeBLEConnection({
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deviceId: deviceId,
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success(res2) {
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},fail(err1){
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}
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})
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wx.closeBluetoothAdapter({
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success(res) {
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},fail(err2){
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}
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})
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uni.removeStorageSync('deviceId')
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that.handlePrintTap()
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that.isShowSearch = true
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return
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}, 5000);
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// 连接设备
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wx.createBLEConnection({ //555
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deviceId: deviceId, // 搜索到设备的 deviceId
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success: () => {
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// 连接成功就清除定时器
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clearTimeout(timerId);
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that.isShowSearch = false
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that.huoqufuwu(deviceId)
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},
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fail: (res) => {
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clearTimeout(timerId);
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if(res.errno == '1509007'){
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that.huoqufuwu(deviceId)
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}
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if(res.errno == '1509003'){
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that.lianejieshebei(deviceId)
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}
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}
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})
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},
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huoqufuwu(deviceId) {
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let that = this;
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//获取服务
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wx.getBLEDeviceServices({ //666
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deviceId: deviceId, // 搜索到设备的 deviceId
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success: (res5) => {
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that.duxietezhengzhi(deviceId, res5)
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},
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fail: (res) => {
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that.tui.toast('连接失败，请重启蓝牙或删除小程序重新进入-4',res)
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wx.closeBLEConnection({
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deviceId: uni.getStorageSync('deviceId'),
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success(res1) {
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}
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})
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uni.removeStorageSync('deviceId')
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that.sousuo()
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that.isShowSearch = true
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setTimeout(res => {
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uni.hideLoading();
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}, 2000)
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}
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})
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},
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duxietezhengzhi(deviceId, res5) {
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let that = this;
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//读写特征值
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wx.getBLEDeviceCharacteristics({ //777
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deviceId: deviceId, // 搜索到设备的 deviceId
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serviceId: res5.services[0].uuid, // 上一步中找到的某个服务
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success: (res6) => {
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for (let i = 0; i < res6.characteristics.length; i++) {
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let item = res6.characteristics[i]
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that.startNoticeBle(deviceId, res5.services[0].uuid, res6.characteristics[2].uuid)
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if (item.properties.write) { // 该特征值可写
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uni.setStorageSync('deviceId', deviceId);
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uni.setStorageSync('serviceId', res5.services[0].uuid);
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uni.setStorageSync('characteristicId', item.uuid);
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that.xierushuju()
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return;
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}
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}
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},
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fail: (res) => {
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that.tui.toast('连接失败，请重启蓝牙或删除小程序重新进入-5',res)
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wx.closeBLEConnection({
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deviceId: uni.getStorageSync('deviceId'),
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success(res) {
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}
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})
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uni.removeStorageSync('deviceId')
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that.sousuo()
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that.isShowSearch = true
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setTimeout(res => {
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uni.hideLoading();
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}, 2000)
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}
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})
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},
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// 开启蓝牙数据监听
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startNoticeBle(deviceId, serviceId, characteristicId) {
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let _this = this
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uni.notifyBLECharacteristicValueChange({
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state: true, // 启用 notify 功能
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deviceId: deviceId,
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serviceId: serviceId,
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characteristicId: characteristicId,
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success(res) {
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_this.GetDataFromBle();
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},
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fail: function(err) {
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}
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})
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},
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// 设备返回的数据接收
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GetDataFromBle() {
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var _this = this;
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uni.onBLECharacteristicValueChange((res) => {
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// 此时可以拿到蓝牙设备返回来的数据是一个ArrayBuffer类型数据，所以需要通过一个方法转换成字符串
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_this.bleData = _this.ab2hex(res.value)
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uni.hideLoading()
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setTimeout(res=>{
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uni.closeBLEConnection({
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deviceId: uni.getStorageSync('deviceId'),
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success(res) {
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},
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fail(err) {}
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})
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},_this.picWaitTime)
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})
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},
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ab2hex(buffer) {
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const hexArr = Array.prototype.map.call(
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new Uint8Array(buffer),
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function(bit) {
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return ('00' + bit.toString(16)).slice(-2)
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}
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)
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return hexArr.join('')
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},
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xierushuju() {
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let that = this;
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//写入数据
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if (this.defaultText == '打印小票') {
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that.$emit('onPrintSmall');
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|
|
} else if (this.defaultText == '确认打印') {
|
||
|
|
that.$emit('goPrint');
|
||
|
|
} else if (this.defaultText == '小标签') {
|
||
|
|
that.$emit('onPrintSmall1');
|
||
|
|
}else {
|
||
|
|
that.$emit('onPrint');
|
||
|
|
}
|
||
|
|
|
||
|
|
that.$nextTick(() => {
|
||
|
|
var dataStr = ''
|
||
|
|
for (let m = 0; m < that.bufferData.length; m++) {
|
||
|
|
dataStr += that.bufferData[m]
|
||
|
|
}
|
||
|
|
const maxChunk = that.deviceType == 'android' ? 20 : 180;
|
||
|
|
const delay = that.deviceType == 'android' ? 20 : 180;
|
||
|
|
|
||
|
|
let buffer = gbk.strToGBKByte(dataStr)
|
||
|
|
if(dataStr.indexOf('EG ') != -1){
|
||
|
|
that.picWaitTime = buffer.byteLength + 200
|
||
|
|
}
|
||
|
|
for (let i = 0, j = 0, length = buffer.byteLength; i < length; i += maxChunk, j++) {
|
||
|
|
let subPackage = buffer.slice(i, i + maxChunk <= length ? (i + maxChunk) : length);
|
||
|
|
setTimeout(that._writeBLECharacteristicValue, j * delay, subPackage);
|
||
|
|
}
|
||
|
|
|
||
|
|
})
|
||
|
|
return;
|
||
|
|
},
|
||
|
|
_writeBLECharacteristicValue(buffer) {
|
||
|
|
let that = this;
|
||
|
|
wx.writeBLECharacteristicValue({
|
||
|
|
deviceId: uni.getStorageSync('deviceId'),
|
||
|
|
serviceId: uni.getStorageSync('serviceId'),
|
||
|
|
characteristicId: uni.getStorageSync('characteristicId'),
|
||
|
|
value: buffer,
|
||
|
|
success(res) {
|
||
|
|
|
||
|
|
},
|
||
|
|
fail(res) {
|
||
|
|
wx.closeBLEConnection({
|
||
|
|
deviceId: uni.getStorageSync('deviceId'),
|
||
|
|
success(res) {
|
||
|
|
|
||
|
|
}
|
||
|
|
})
|
||
|
|
if (uni.getStorageSync('deviceId')) {
|
||
|
|
// that.xierushuju()
|
||
|
|
} else {
|
||
|
|
that.jiantingshebei()
|
||
|
|
}
|
||
|
|
uni.hideLoading();
|
||
|
|
}
|
||
|
|
})
|
||
|
|
|
||
|
|
},
|
||
|
|
handleSearchClose() {
|
||
|
|
wx.closeBluetoothAdapter({
|
||
|
|
success(res) {
|
||
|
|
|
||
|
|
}
|
||
|
|
})
|
||
|
|
this.isShowSearch = false
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</script>
|
||
|
|
|
||
|
|
<style lang="scss" scoped>
|
||
|
|
.kk-printer {
|
||
|
|
&-btn {
|
||
|
|
width: 100%;
|
||
|
|
height: 100%;
|
||
|
|
}
|
||
|
|
|
||
|
|
.kk-shadow {
|
||
|
|
display: none;
|
||
|
|
z-index: 999;
|
||
|
|
|
||
|
|
&.show {
|
||
|
|
display: block;
|
||
|
|
width: 100vw;
|
||
|
|
height: 100vh;
|
||
|
|
background: rgba(0, 0, 0, 0.4);
|
||
|
|
position: fixed;
|
||
|
|
top: 0;
|
||
|
|
left: 0;
|
||
|
|
display: flex;
|
||
|
|
justify-content: center;
|
||
|
|
align-items: center;
|
||
|
|
|
||
|
|
.kk-modal {
|
||
|
|
width: 420rpx;
|
||
|
|
height: 600rpx;
|
||
|
|
padding: 24rpx;
|
||
|
|
box-sizing: border-box;
|
||
|
|
overflow-y: auto;
|
||
|
|
border-radius: 20rpx;
|
||
|
|
background: #ffffff;
|
||
|
|
display: flex;
|
||
|
|
justify-content: center;
|
||
|
|
align-items: center;
|
||
|
|
|
||
|
|
.kk-search-device {
|
||
|
|
width: 100%;
|
||
|
|
height: 100%;
|
||
|
|
|
||
|
|
.kk-filter-wrap {
|
||
|
|
width: 100%;
|
||
|
|
height: 160rpx;
|
||
|
|
display: flex;
|
||
|
|
flex-direction: column;
|
||
|
|
justify-content: flex-start;
|
||
|
|
align-items: flex-start;
|
||
|
|
|
||
|
|
&>slider {
|
||
|
|
width: 90%;
|
||
|
|
height: 90rpx;
|
||
|
|
}
|
||
|
|
|
||
|
|
&>input {
|
||
|
|
padding: 0 20rpx;
|
||
|
|
box-sizing: border-box;
|
||
|
|
border-radius: 10rpx;
|
||
|
|
height: 90rpx;
|
||
|
|
width: 100%;
|
||
|
|
border: 1rpx solid #ebebeb;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
.kk-btn-wrap {
|
||
|
|
width: 100%;
|
||
|
|
height: 90rpx;
|
||
|
|
display: flex;
|
||
|
|
justify-content: space-between;
|
||
|
|
align-items: center;
|
||
|
|
padding: 20rpx;
|
||
|
|
|
||
|
|
&>view {
|
||
|
|
flex: 1 1 auto;
|
||
|
|
height: 60rpx;
|
||
|
|
line-height: 60rpx;
|
||
|
|
border-radius: 16rpx;
|
||
|
|
text-align: center;
|
||
|
|
color: #ffffff;
|
||
|
|
font-size: 26rpx;
|
||
|
|
|
||
|
|
&.confirm-btn {
|
||
|
|
background: #007AFF;
|
||
|
|
margin-right: 30rpx;
|
||
|
|
}
|
||
|
|
|
||
|
|
&:nth-last-child(1) {
|
||
|
|
background: #DD524D;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
.kk-devices-wrap {
|
||
|
|
height: calc(100% - 80rpx);
|
||
|
|
overflow-y: auto;
|
||
|
|
padding: 10rpx 20rpx;
|
||
|
|
box-sizing: border-box;
|
||
|
|
border: 1rpx solid #ebebeb;
|
||
|
|
box-sizing: border-box;
|
||
|
|
border-radius: 20rpx;
|
||
|
|
|
||
|
|
.empty-wrap {
|
||
|
|
width: 100%;
|
||
|
|
height: 100%;
|
||
|
|
display: flex;
|
||
|
|
flex-direction: column;
|
||
|
|
justify-content: center;
|
||
|
|
align-items: center;
|
||
|
|
|
||
|
|
.empty-icon {
|
||
|
|
width: 268rpx;
|
||
|
|
height: 240rpx;
|
||
|
|
background-size: 100% 100%;
|
||
|
|
margin-bottom: 26rpx;
|
||
|
|
}
|
||
|
|
|
||
|
|
.empty-text {
|
||
|
|
width: 100%;
|
||
|
|
line-height: 50rpx;
|
||
|
|
font-size: 30rpx;
|
||
|
|
text-align: center;
|
||
|
|
color: #999999;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
.kk-devices-item {
|
||
|
|
width: 100%;
|
||
|
|
border-bottom: 1rpx solid #ebebeb;
|
||
|
|
padding: 10rpx 0;
|
||
|
|
box-sizing: border-box;
|
||
|
|
z-index: 500;
|
||
|
|
|
||
|
|
&:nth-last-child(1) {
|
||
|
|
border-bottom: none;
|
||
|
|
}
|
||
|
|
|
||
|
|
&>view {
|
||
|
|
width: 100%;
|
||
|
|
font-size: 30rpx;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</style>
|