BluetoothDemo/pages/PCJ02/index.js

const util = require("../../utils/util");
const {
	inArray,
	ab2hex
} = util
const plugin = requirePlugin("sdkPlugin").AiLink;
Page({
	data: {
		connected: false,
		name: '',
		weight: "",
		height: "",
		imp: "",
		devices: [],
		deviceId: null,
	},
	onLoad: function() {},
	// 初始化蓝牙模块
	openBluetoothAdapter() {
		wx.openBluetoothAdapter({
			success: (res) => {
				console.log('openBluetoothAdapter success', res)
				wx.showToast({
					title: '蓝牙连接中',
					icon: "none"
				})
				this.startBluetoothDevicesDiscovery()
			},
			fail: (res) => {
				if (res.errCode === 10001) {
					wx.showToast({
						title: '请打开蓝牙',
						icon: "none"
					})
					// 监听本机蓝牙状态变化的事件
					wx.onBluetoothAdapterStateChange((res) => {
						console.log('onBluetoothAdapterStateChange', res)
						if (res.available) {
							this.startBluetoothDevicesDiscovery()
						}
					})
				}
			}
		})
	},

	// 开始搜寻附近的蓝牙外围设备
	startBluetoothDevicesDiscovery() {
		if (this._discoveryStarted) {
			return
		}
		this._discoveryStarted = true
		wx.startBluetoothDevicesDiscovery({
			allowDuplicatesKey: true,
			interval: 1000, //上报设备的间隔
			services: [
				"F0A0",
			],
			success: (res) => {
				this.onBluetoothDeviceFound()
			},
		})
	},
	// 停止搜寻附近的蓝牙外围设备
	stopBluetoothDevicesDiscovery() {
		wx.stopBluetoothDevicesDiscovery()
	},

	// 找到新设备的事件
	onBluetoothDeviceFound() {
		let that = this
		wx.onBluetoothDeviceFound((res) => {
			res.devices.forEach(device => {
				if (!device.name && !device.localName) {
					return
				}
				if (device.advertisServiceUUIDs[0].indexOf("F0A0") !== -1) {
					let parseDataRes = plugin.parseBroadcastData(device.advertisData)
					let analyzeData = plugin.analyzeBroadcastScaleData(parseDataRes)
					let analyzeDataText = analyzeData.text
					let data = analyzeData.data
					const foundDevices = this.data.devices
					const idx = inArray(foundDevices, 'deviceId', device.deviceId)
					const dataT = {}
					let buffer = device.advertisData.slice(0, 8)
					device.mac = new Uint8Array(buffer) // 保存广播数据中的mac地址，这是由于iOS不直接返回mac地址
					let tempMac = Array.from(device.mac)
					tempMac.reverse()
					device.macAddr = ab2hex(tempMac, ':').toUpperCase()
					that.imp = dataT.adc
					if (idx === -1) {
						dataT[`devices[${foundDevices.length}]`] = device
					} else {
						dataT[`devices[${idx}]`] = device
					}
					this.setData(dataT)
					console.log("analyzeData", analyzeData)
					if (parseDataRes.status == 1) {
						let dw1 = "kg"
						let dwH = "CM"
						// 体重单位
						if (data.weightUnit == "1") {
							dw1 = "斤"
						}
						if (data.weightUnit == "4") {
							dw1 = "st:lb"
							data.weight = 1 * data.weight + 5
						}
						if (data.weightUnit == "6") {
							dw1 = "lb"
						}
						if (data.weightDecimal == "1") {
							data.weight = data.weight / 10
						}
						if (data.weightDecimal == "2") {
							data.weight = data.weight / 100
						}
						if (data.weightDecimal == "3") {
							data.weight = data.weight / 1000
						}
						that.setData({
							weight: analyzeData.text
						})
						// that.setData({
						// 	weight: "您的体重是：" + data.weight + dw1
						// })
						//身高单位
						// if (data.tempUnit == "1") {
						// 	dwH = "FT"
						// 	data.tempNegative = data.tempNegative * 2.54
						// }
						// that.setData({
						// 	height: "您的身高是：" + data.tempNegative / 10 + dwH
						// })
						return
					}
				}

			})
		})
	},
	//监听蓝牙连接状态
	onBLEConnectionStateChange() {
		wx.onBLEConnectionStateChange((res) => {
			if (!res.connected) {
				wx.stopBluetoothDevicesDiscovery();
				setTimeout(() => {
					wx.showToast({
						title: '连接已断开',
						icon: 'none'
					})
				}, 500)
				this.setData({
					connected: false,
					devices: [],
					weight: "",
					height: "",
					text: "",
					imp: ""
				})
			}
		})
	},

	/**
	 * 断开蓝牙模块
	 */
	closeBluetoothAdapter() {
		wx.stopBluetoothDevicesDiscovery();
		wx.closeBluetoothAdapter()
		this._discoveryStarted = false
		wx.showToast({
			title: '结束流程',
			icon: 'none'
		})
		this.setData({
			devices: [],
			weight: "",
			height: "",
			text: "",
			imp: ""
		})
	},
});