YangWork
268
components/ywx-jprinter/ywx-jprinter.vue
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268
components/ywx-jprinter/ywx-jprinter.vue
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<template>
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<view>
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<button @click="searchBle">搜索蓝牙</button>
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<view style="margin-top: 30upx;" :key="index" v-for="(item,index) in devices">
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<button style="width: 400upx; color: #0081FF;" @click="onConn(item)">{{item.name}}</button>
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</view>
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<button style="margin-top: 100upx;" @click="senBleLabel()">标签打印</button>
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<textarea @blur="bindTextAreaBlur" auto-height placeholder-style="color:#F76260" placeholder="请输入票据信息" v-model="piaojuText" />
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<button style="margin-top: 100upx;" @click="senBleLabel2()">票据打印</button>
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</view>
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</template>
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<script>
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var tsc = import.meta.globEager("../../components/gprint/tsc.js")
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var esc = import.meta.globEager("../../components/gprint/esc.js")
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//var tsc = require('../../components/gprint/tsc.js')
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//var esc = require('../../components/gprint/esc.js')
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export default {
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name:"ywx-jprinter",
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data() {
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return {
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devices: [],
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currDev: null,
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connId: '',
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piaojuText:'',
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}
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},
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onLoad: function() {
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},
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methods: {
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destroyed: function() {
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console.log("destroyed----------")
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if (this.connId != '') {
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uni.closeBLEConnection({
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deviceId: this.connId,
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success(res) {
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console.log(res)
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}
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})
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}
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},
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searchBle() {
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uni.showLoading({
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title:"请稍后！"
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})
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var that = this
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console.log("initBule")
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uni.openBluetoothAdapter({
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success(res) {
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console.log("打开 蓝牙模块")
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console.log(res)
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that.onDevice()
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uni.getBluetoothAdapterState({
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success: function(res) {
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uni.hideLoading();
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console.log(res)
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if (res.available) {
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if (res.discovering) {
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that.stopFindBule()
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}
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//搜索蓝牙
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//开始搜寻附近的蓝牙外围设备
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console.log("开始搜寻附近的蓝牙外围设备")
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uni.startBluetoothDevicesDiscovery({
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success(res) {
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uni.showModal({
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content: res
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})
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console.log(res)
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}
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})
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} else {
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console.log('本机蓝牙不可用')
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}
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},
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})
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}
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})
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},
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onDevice(){
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console.log("监听寻找到新设备的事件---------------")
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var that = this
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//监听寻找到新设备的事件
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uni.onBluetoothDeviceFound(function(devices) {
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console.log('--------------new-----------------------'+JSON.stringify(devices))
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var re = JSON.parse(JSON.stringify(devices))
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console.log(re.devices[0].name + " " + re.devices[0].deviceId)
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let name = re.devices[0].name
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if (name != "未知设备") {
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let deviceId = re.devices[0].deviceId
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that.devices.push({
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name: name,
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deviceId: deviceId,
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services: []
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})
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}
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})
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},
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stopFindBule() {
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console.log("停止搜寻附近的蓝牙外围设备---------------")
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uni.stopBluetoothDevicesDiscovery({
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success(res) {
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console.log(res)
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}
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})
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},
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onConn(item) {
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var that = this
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console.log("连接蓝牙---------------" + item.deviceId)
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let deviceId = item.deviceId
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uni.createBLEConnection({
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deviceId: deviceId,
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complete(res) {
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if (res.errMsg == "createBLEConnection:ok") {
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console.log("连接蓝牙-[" + item.name + "]--成功")
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that.connId = deviceId;
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that.currDev = item
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setTimeout(function() {
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that.getBLEServices(deviceId)
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}, 2000)
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} else {
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console.log(res)
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}
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//连接成功 关闭搜索
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that.stopFindBule()
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},
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})
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},
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getBLEServices(_deviceId) {
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var that = this;
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let deviceId = _deviceId
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console.log("获取蓝牙设备所有服务(service)。---------------")
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uni.getBLEDeviceServices({
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// 这里的 deviceId 需要已经通过 createBLEConnection 与对应设备建立链接
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deviceId: deviceId,
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complete(res) {
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console.log(res)
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let serviceId = ""
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for (var s = 0; s < res.services.length; s++) {
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console.log(res.services[s].uuid)
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let serviceId = res.services[s].uuid
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uni.getBLEDeviceCharacteristics({
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// 这里的 deviceId 需要已经通过 createBLEConnection 与对应设备建立链接
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deviceId: deviceId,
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// 这里的 serviceId 需要在 getBLEDeviceServices 接口中获取
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serviceId: serviceId,
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success(res) {
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var re = JSON.parse(JSON.stringify(res))
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console.log('deviceId = [' + deviceId + '] serviceId = [' + serviceId + ']')
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for (var c = 0; c < re.characteristics.length; c++) {
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if (re.characteristics[c].properties.write == true) {
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let uuid = re.characteristics[c].uuid
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console.log(' deviceId = [' + deviceId + '] serviceId = [' + serviceId + '] characteristics=[' +
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uuid)
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for (var index in that.devices) {
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if (that.devices[index].deviceId == deviceId) {
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that.devices[index].services.push({
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serviceId: serviceId,
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characteristicId: uuid
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})
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break
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}
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}
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console.log(JSON.stringify(that.devices))
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}
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}
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}
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})
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}
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},
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fail(res) {
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console.log(res)
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},
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})
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},
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senBlData(deviceId, serviceId, characteristicId,uint8Array) {
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console.log('************deviceId = [' + deviceId + '] serviceId = [' + serviceId + '] characteristics=[' +characteristicId+ "]")
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var uint8Buf = Array.from(uint8Array);
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function split_array(datas,size){
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var result = {};
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var j = 0
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for (var i = 0; i < datas.length; i += size) {
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result[j] = datas.slice(i, i + size)
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j++
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}
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console.log(result)
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return result
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}
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var sendloop = split_array(uint8Buf, 20);
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// console.log(sendloop.length)
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function realWriteData(sendloop, i) {
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var data = sendloop[i]
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if(typeof(data) == "undefined"){
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return
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}
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console.log("第【" + i + "】次写数据"+data)
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var buffer = new ArrayBuffer(data.length)
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var dataView = new DataView(buffer)
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for (var j = 0; j < data.length; j++) {
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dataView.setUint8(j, data[j]);
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}
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uni.writeBLECharacteristicValue({
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deviceId,
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serviceId,
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characteristicId,
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value: buffer,
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success(res) {
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realWriteData(sendloop, i + 1);
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}
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})
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}
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var i = 0;
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realWriteData(sendloop, i);
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},
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senBleLabel() {
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//标签模式
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let deviceId = this.currDev.deviceId;
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let serviceId = this.currDev.services[0].serviceId;
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let characteristicId = this.currDev.services[0].characteristicId;
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var command = tsc.jpPrinter.createNew()
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// console.log(command)
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command.setSize(40, 30)
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command.setGap(2)
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command.setCls()
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command.setText(50, 10, "TSS24.BF2", 1, 1, "打印测试")
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command.setQR(50, 50, "L", 5, "A", "977767937@qq.com")
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command.setPagePrint()
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this.senBlData(deviceId, serviceId, characteristicId,command.getData())
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},
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senBleLabel2(){
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//票据模式
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let deviceId = this.currDev.deviceId;
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let serviceId = this.currDev.services[0].serviceId;
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let characteristicId = this.currDev.services[0].characteristicId;
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var command = esc.jpPrinter.createNew()
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command.init()
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command.setText(this.piaojuText);
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command.setPrintAndFeedRow(1)
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this.senBlData(deviceId, serviceId, characteristicId,command.getData())
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}
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}
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}
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</script>
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Reference in New Issue
Block a user