165 lines
5.5 KiB
JavaScript
165 lines
5.5 KiB
JavaScript
const util = require("../../utils/util");
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const {
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inArray,
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ab2hex
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} = util
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const plugin = requirePlugin("sdkPlugin").AiLink;
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Page({
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data: {
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devices: [],
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connected: false,
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weight: "",
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imp: "",
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deviceId: null,
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},
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onLoad: function() {},
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// 初始化蓝牙模块
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openBluetoothAdapter() {
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wx.openBluetoothAdapter({
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success: (res) => {
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console.log('openBluetoothAdapter success', res)
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wx.showToast({
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title: '蓝牙连接中',
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icon: "none"
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})
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this.startBluetoothDevicesDiscovery()
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},
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fail: (res) => {
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if (res.errCode === 10001) {
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wx.showToast({
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title: '请打开蓝牙',
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icon: "none"
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})
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// 监听本机蓝牙状态变化的事件
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wx.onBluetoothAdapterStateChange((res) => {
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console.log('onBluetoothAdapterStateChange', res)
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if (res.available) {
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this.startBluetoothDevicesDiscovery()
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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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// 开始搜寻附近的蓝牙外围设备
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startBluetoothDevicesDiscovery() {
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if (this._discoveryStarted) {
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return
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}
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this._discoveryStarted = true
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wx.startBluetoothDevicesDiscovery({
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allowDuplicatesKey: true, //是否允许重复上报同一设备
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services: [ //要搜索蓝牙设备主 service 的 uuid 列表
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"F0A0",
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],
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success: (res) => {
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console.log('startBluetoothDevicesDiscovery success', res)
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this.onBluetoothDeviceFound()
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},
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})
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},
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// 停止搜寻附近的蓝牙外围设备
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stopBluetoothDevicesDiscovery() {
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wx.stopBluetoothDevicesDiscovery()
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},
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// 找到新设备的事件
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onBluetoothDeviceFound() {
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let that = this
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wx.onBluetoothDeviceFound((res) => {
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res.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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if (device.advertisServiceUUIDs[0].indexOf("F0A0") !== -1) {
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let value = ab2hex(device.advertisData)
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let parseDataRes = plugin.parseBroadcastData(device.advertisData)
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let analyzeData = plugin.analyzeBroadcastScaleData(parseDataRes)
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let analyzeDataText = analyzeData.text
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let data = analyzeData.data
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const dataT = {}
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const foundDevices = this.data.devices
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const idx = inArray(foundDevices, 'deviceId', device.deviceId)
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let buffer = device.advertisData.slice(0, 8)
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device.mac = new Uint8Array(buffer)
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let tempMac = Array.from(device.mac)
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tempMac.reverse()
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device.macAddr = ab2hex(tempMac, ':').toUpperCase()
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if (idx === -1) {
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dataT[`devices[${foundDevices.length}]`] = device
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} else {
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dataT[`devices[${idx}]`] = device
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}
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this.setData(dataT)
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if (parseDataRes.status == 1) {
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let dw1 = "kg"
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if (data.weightUnit == "1") {
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dw1 = "斤"
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}
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if (data.weightUnit == "4") {
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dw1 = "st:lb"
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data = 1 * data + 5
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}
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if (data.weightUnit == "6") {
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dw1 = "lb"
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}
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if (data.weightDecimal == "1") {
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data.weight = data.weight / 10
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}
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if (data.weightDecimal == "2") {
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data.weight = data.weight / 100
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}
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if (data.weightDecimal == "3") {
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data.weight = data.weight / 1000
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}
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that.setData({
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weight: analyzeData.text
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})
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return
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}
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}
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})
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})
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},
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//监听蓝牙连接状态
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onBLEConnectionStateChange() {
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wx.onBLEConnectionStateChange((res) => {
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if (!res.connected) {
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wx.stopBluetoothDevicesDiscovery();
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setTimeout(() => {
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wx.showToast({
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title: '连接已断开',
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icon: 'none'
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})
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}, 500)
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this.setData({
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connected: false,
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devices: [],
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weight: "",
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imp: ""
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})
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}
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})
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},
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/**
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* 断开蓝牙模块
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*/
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closeBluetoothAdapter() {
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wx.stopBluetoothDevicesDiscovery();
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wx.closeBluetoothAdapter()
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this._discoveryStarted = false
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wx.showToast({
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title: '结束流程',
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icon: 'none'
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})
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this.setData({
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devices: [],
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weight: "",
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imp: ""
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})
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},
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});
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