Guoguo
edf45690c3
- Extract _cleanup() to properly unregister ADC listener + clear timers - ADC callback unregisters itself on first receive (prevent duplicates) - setParams failure now stops scanning and clears all state - Timeout handler unregisters ADC listener - Add BLE connection check before scan - SCAN_TIMEOUT 8s → 12s (must exceed hold_time 10s) - Pre-compute barWidth in JS instead of float math in WXML - Error only shows when scanning is false
126 行
3.8 KiB
JavaScript
126 行
3.8 KiB
JavaScript
var ble = require('../../services/ble')
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var SCAN_BRIGHTNESS = 128
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var SCAN_TIMEOUT = 12000
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Page({
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data: {
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statusBarHeight: 44,
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scanning: true,
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scanProgress: 0,
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regions: 0x1F,
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pdValues: [],
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pdRaw: [],
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vbat: 0,
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battery: 0,
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error: ''
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},
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onBack: function () {
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wx.navigateBack({
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fail: function () {
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wx.reLaunch({ url: '/pages/index/index' })
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}
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})
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},
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onLoad: function (options) {
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var app = getApp()
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this.setData({
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statusBarHeight: app.globalData.statusBarHeight,
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regions: parseInt(options.regions) || 0x1F
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})
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this.startScan()
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},
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_cleanup: function () {
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if (this._progressTimer) { clearInterval(this._progressTimer); this._progressTimer = null }
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if (this._timeoutTimer) { clearTimeout(this._timeoutTimer); this._timeoutTimer = null }
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if (this._onAdc) { ble.off('adc', this._onAdc); this._onAdc = null }
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},
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startScan: function () {
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var self = this
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if (!ble.isConnected()) {
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self.setData({ scanning: false, error: '设备未连接，请先连接设备' })
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return
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}
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self.setData({ scanning: true, scanProgress: 0, error: '', pdValues: [] })
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this._progressTimer = setInterval(function () {
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var p = self.data.scanProgress + 1
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if (p > 90) p = 90
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self.setData({ scanProgress: p })
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}, 80)
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this._onAdc = function (data) {
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console.log('[SCAN] 收到ADC数据:', JSON.stringify(data))
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self._cleanup()
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self.setData({ scanning: false, scanProgress: 100 })
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self._handleAdcData(data)
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}
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ble.on('adc', this._onAdc)
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console.log('[SCAN] 下发扫描指令: 全域亮度', SCAN_BRIGHTNESS)
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ble.setParams({
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region_mask: 0x1F,
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wavelength: 2,
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brightness: SCAN_BRIGHTNESS,
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hold_time: 10
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}).then(function () {
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console.log('[SCAN] 扫描指令发送成功，等待ADC回传...')
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}).catch(function (err) {
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console.error('[SCAN] 扫描指令发送失败:', err)
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self._cleanup()
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self.setData({ scanning: false, scanProgress: 0, error: '扫描指令发送失败' })
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})
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this._timeoutTimer = setTimeout(function () {
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if (!self.data.scanning) return
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console.log('[SCAN] 等待ADC超时，使用默认值')
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self._cleanup()
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self.setData({ scanning: false, scanProgress: 100 })
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self._handleAdcData(null)
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}, SCAN_TIMEOUT)
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},
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_handleAdcData: function (data) {
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var regionNames = ['右区(IO1)', '左区(IO2)', '上区(IO3)', '中区(IO4)', '下区(IO5)']
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var pdValues = []
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if (data && data.pd && data.pd.length >= 7) {
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this.setData({ pdRaw: data.pd, vbat: data.vbat || 0, battery: data.battery || 0 })
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for (var i = 0; i < 5; i++) {
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var barW = Math.min(100, Math.round(data.pd[i] / 40.95))
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pdValues.push({ region: regionNames[i], pd: data.pd[i], pdText: String(data.pd[i]), barWidth: barW })
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}
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pdValues.push({ region: 'PD6', pd: data.pd[5], pdText: String(data.pd[5]), barWidth: Math.min(100, Math.round(data.pd[5] / 40.95)) })
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pdValues.push({ region: 'PD7', pd: data.pd[6], pdText: String(data.pd[6]), barWidth: Math.min(100, Math.round(data.pd[6] / 40.95)) })
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getApp().globalData.lastScanPd = data.pd
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getApp().globalData.lastScanVbat = data.vbat
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} else {
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for (var j = 0; j < 5; j++) {
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pdValues.push({ region: regionNames[j], pd: 0, pdText: '未采集', barWidth: 0 })
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}
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}
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this.setData({ pdValues: pdValues })
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},
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onUnload: function () {
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this._cleanup()
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ble.stopTreatment().catch(function () {})
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},
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onNext: function () {
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var mask = this.data.regions || 0x1F
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var pdRaw = this.data.pdRaw
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var pdParam = pdRaw.length > 0 ? '&pd=' + encodeURIComponent(JSON.stringify(pdRaw)) : ''
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wx.redirectTo({
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url: '/pages/treatment-setup/treatment-setup?regions=' + mask + pdParam
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})
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}
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})
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