公告列表
公告列表
收藏
回答

鸿蒙系统使用nfc的NFCAdapter.onDiscovered返回缺少messages

框架类型 问题类型 API/组件名称 终端类型 微信版本 基础库版本
小程序 Bug nfc 鸿蒙客户端 8.0.11.34 3.11.1

日志截图：

图1是安卓版本。

图2 是puraX纯鸿蒙系统

且微信开发者工具鸿蒙真机调试不能打开日志窗口


问题1：纯鸿蒙系统 使用NFCAdapter的writeNdefMessage写入 records 微信会闪退，使用uri不会，但是读取数据丢失message,日志已上传

问题2：NFCAdapter.onDiscovered 监听 鸿蒙系统没有返回 message

问题3：微信开发者工具鸿蒙真机调试不能打开日志窗口


import { byteToString, formatNullCharacter, throttle } from '../../../utils/util' Page({ NFCAdapter: null, data: { btnTypes: { 0: 'default', 1: 'primary', 2: 'warn' }, currentWriteNdef: '', key: '', keyList: [], title: '', content: '', read: {}, writeItem: {}, validateItem: {}, infoState: 1 }, onLoad: function (options) { const key = options.key || 'record_5241db3580af4717b5e8c8ed0f6ea95f' const keyList = wx.getStorageSync(key) this.data.key = key this.setData({ keyList }) }, onShow() { this.NFCAdapter = wx.getNFCAdapter() this.NFClistener() }, /** * 开启监听NFC事件 */ NFClistener() { this.NFCAdapter.startDiscovery({ success: () => { this.setData({ title: '开启NFC适配器成功!' }) }, fail: error => { console.log('开启NFC适配器失败！', error) wx.showToast({ title: '开启适配器失败', icon: 'error' }) this.setData({ title: '开启适配器失败!', infoState: 0 }) } }) }, /** * 验证 监听回调 */ validateDiscoverHandler(callback) { console.log('==================== START ====================') console.log('onDiscovered callback=>', callback) if (callback.techs.length != 0) { this.setData({ title: '识别成功！', infoState: 1 }) } else { this.setData({ title: '无效设备', infoState: 0 }) } if (callback.messages) { let cordsArray = callback.messages[0].records cordsArray.forEach(item => { const read = { payload: formatNullCharacter(byteToString(new Uint8Array(item.payload))), id: byteToString(new Uint8Array(item.id)), type: byteToString(new Uint8Array(item.type)) } const validateItem = this.data.validateItem let title = '' let icon = '' let verificationState = '' let infoState = 1 if (validateItem.text == this.data.read.payload) { title = '验证成功~' icon = 'none' verificationState = 1 } else { title = '验证失败！' icon = 'error' verificationState = 2 infoState = 0 } this.setData({ title, read, infoState, [`keyList[${validateItem.idx - 1}].verificationState`]: verificationState }) wx.showToast({ title, icon }) this.handleSyncStorageKey() }) } console.log('read', this.data.read) this.NFCAdapter.offDiscovered(this.validateDiscoverHandler) console.log('===================== END =====================') }, /** * 写入数据 */ onWriteNdefInfo: throttle(function (e) { const item = e.currentTarget.dataset.item this.data.writeItem = item wx.showToast({ title: '靠近NFC标签', icon: 'loading', duration: 100000 }) // 监听 NFC 标签 this.NFCAdapter.onDiscovered(this.writeDiscoverHandler) },1000), /** * 写入 监听 */ async writeDiscoverHandler() { wx.showToast({ title: '识别NFC标签', icon: 'loading', duration: 1000000 }) const NFCTab = await this.initTab() if (!NFCTab) return const writeItem = this.data.writeItem let title = '' let icon = 'none' let writeState = 0 let infoState = 1 let read = { type: '', payload: '' } // 执行写入 // 将文本转换为UTF-8字节数组 const textBytes = [] for (let i = 0; i < writeItem.text.length; i++) { const code = writeItem.text.charCodeAt(i) if (code < 0x80) { textBytes.push(code) } else if (code < 0x800) { textBytes.push(0xC0 | (code >> 6)) textBytes.push(0x80 | (code & 0x3F)) } else { textBytes.push(0xE0 | (code >> 12)) textBytes.push(0x80 | ((code >> 6) & 0x3F)) textBytes.push(0x80 | (code & 0x3F)) } } NFCTab.writeNdefMessage({ records: [{ tnf: 1, // TNF_WELL_KNOWN type: new Uint8Array([0x54]).buffer, // 'T' for Text id: new ArrayBuffer(0), // 空的ID payload: new Uint8Array([ 0x00, // Text Record Status Byte (UTF-8, no language code) ...textBytes // Text content only ]).buffer }], success: () => { title = '数据写入成功' icon = 'success' writeState = 1 read.type = 'T' read.payload = writeItem.text }, fail: () => { title = '数据写入失败' icon = 'error' writeState = 2 infoState = 0 }, complete: res => { console.log('数据写入: res', res) wx.showToast({ title, icon }) this.setData({ title, read, infoState, [`keyList[${writeItem.idx - 1}].writeState`]: writeState }) this.closeConnect(NFCTab) this.handleSyncStorageKey() } }) }, /** * 连接设备NFC */ initTab() { const NFCTab = this.NFCAdapter.getNdef() return new Promise((resolve, reject) => { NFCTab.connect({ success: () => { this.setData({ title: '连接设备成功', infoState: 1 }) resolve(NFCTab) }, fail: error => { console.log('error', error) wx.showToast({ title: '连接设备失败', icon: 'error' }) this.setData({ title: '连接设备失败', infoState: 0 }) this.NFCAdapter.offDiscovered(this.writeDiscoverHandler) reject() } }) }) }, // 读写完毕，断开连接 closeConnect(NFCTab) { NFCTab.close({ complete: res => { console.log('清除标签连接：res', res) this.NFCAdapter.offDiscovered(this.writeDiscoverHandler) } }) }, /** * 验证 */ onValidate: throttle(function (e) { const item = e.currentTarget.dataset.item this.data.validateItem = item wx.showToast({ title: '靠近NFC标签', icon: 'loading', duration: 1000000 }) // 监听 NFC 标签 this.NFCAdapter.onDiscovered(this.validateDiscoverHandler) },1000), /** * 同步数据 */ handleSyncStorageKey() { wx.setStorageSync(this.data.key, this.data.keyList) }, closeNFC() { if (this.NFCAdapter) { this.NFCAdapter.offDiscovered(this.writeDiscoverHandler) this.NFCAdapter.offDiscovered(this.validateDiscoverHandler) this.NFCAdapter.stopDiscovery() this.NFCAdapter = null } }, onHide: function () { this.closeNFC() }, onUnload: function () { this.closeNFC() } })
回答关注问题邀请回答
收藏

2 个回答

  • 社区技术运营专员--Asher
    社区技术运营专员--Asher
    2025-11-04

    问题yi，二请提供代码片段请具体描述问题出现的流程，并提供能复现问题的简单代码片段（https://developers.weixin.qq.com/miniprogram/dev/devtools/minicode.html）。

    问题三：鸿蒙暂不支持真机调试

    2025-11-04
    有用
    回复
  • 智能回答 智能回答 本次回答由AI生成
    2025-11-04
    有用
请 登录 后发表内容
相关文档