feat 配置蓝牙模块

manifest.config.ts

@@ -39,7 +39,12 @@ export default defineManifestConfig({
           '<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>',
           '<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>',
           '<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>',
-          '<uses-permission android:name="android.permission.NEARBY_WIFI_DEVICES" android:usesPermissionFlags="neverForLocation"/>',
+          '<uses-permission android:name="android.permission.NEARBY_WIFI_DEVICES"/>',
+          '<uses-permission android:name="android.permission.BLUETOOTH"/>',
+          '<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>',
+          '<uses-permission android:name="android.permission.BLUETOOTH_SCAN"/>',
+          '<uses-permission android:name="android.permission.BLUETOOTH_CONNECT"/>',
+          '<uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE"/>',
           '<uses-feature android:name="android.hardware.camera.autofocus"/>',
           '<uses-permission android:name="android.permission.CAMERA"/>',
           '<uses-permission android:name="android.permission.GET_ACCOUNTS"/>',
@@ -48,7 +53,7 @@ export default defineManifestConfig({
           '<uses-permission android:name="android.permission.FLASHLIGHT"/>',
           '<uses-feature android:name="android.hardware.camera"/>',
           '<uses-permission android:name="android.permission.WRITE_SETTINGS"/>',
-        ],
+        ] as any,
       },
       /* ios打包配置 */
       ios: {},

src/auto-imports.d.ts

@@ -9,6 +9,7 @@ declare global {
   const EffectScope: typeof import('vue')['EffectScope']
   const asyncComputed: typeof import('@vueuse/core')['asyncComputed']
   const autoResetRef: typeof import('@vueuse/core')['autoResetRef']
+  const bluetooth: typeof import('./utils/bluetooth')['default']
   const closeDatabase: typeof import('./utils/sqlite')['closeDatabase']
   const computed: typeof import('vue')['computed']
   const computedAsync: typeof import('@vueuse/core')['computedAsync']
@@ -337,6 +338,9 @@ declare global {
   export type { Component, Slot, Slots, ComponentPublicInstance, ComputedRef, DirectiveBinding, ExtractDefaultPropTypes, ExtractPropTypes, ExtractPublicPropTypes, InjectionKey, PropType, Ref, MaybeRef, MaybeRefOrGetter, VNode, WritableComputedRef } from 'vue'
   import('vue')
   // @ts-ignore
+  export type { BluetoothDevice, ScanOptions, ScanForDeviceOptions, WriteOptions, BluetoothReceiveData, BluetoothConnectionState, DataCallback, ConnectionStateCallback, DeviceFoundCallback } from './utils/bluetooth'
+  import('./utils/bluetooth')
+  // @ts-ignore
   export type { SystemInfo } from './utils/device'
   import('./utils/device')
   // @ts-ignore
@@ -352,6 +356,7 @@ declare module 'vue' {
     readonly EffectScope: UnwrapRef<typeof import('vue')['EffectScope']>
     readonly asyncComputed: UnwrapRef<typeof import('@vueuse/core')['asyncComputed']>
     readonly autoResetRef: UnwrapRef<typeof import('@vueuse/core')['autoResetRef']>
+    readonly bluetooth: UnwrapRef<typeof import('./utils/bluetooth')['default']>
     readonly closeDatabase: UnwrapRef<typeof import('./utils/sqlite')['closeDatabase']>
     readonly computed: UnwrapRef<typeof import('vue')['computed']>
     readonly computedAsync: UnwrapRef<typeof import('@vueuse/core')['computedAsync']>

src/components/bluetooth/connect.vue

@@ -1,33 +1,212 @@
 <script setup lang="ts">
-import { ref } from 'vue'
+import type { BluetoothDevice } from '@/utils/bluetooth'
+import { computed, onMounted, onUnmounted, ref } from 'vue'
+import bluetooth from '@/utils/bluetooth'
 
-const bluetoothEnabled = ref(true)
+interface DeviceItem {
+  name: string
+  mac: string
+  deviceId: string
+  rssi: number
+  connected: boolean
+}
+
+const bluetoothEnabled = ref(false)
 const searchValue = ref('')
+const scanning = ref(false)
+const connectingId = ref('')
+const deviceList = ref<DeviceItem[]>([])
 
-const deviceList = ref([
-  {
-    name: 'XS-65H',
-    mac: 'MACC:AA:BB:CC:DD:01',
-    connected: false,
-  },
-  {
-    name: 'XS-65H',
-    mac: 'MACC:AA:BB:CC:DD:01',
-    connected: true,
-  },
-])
+let offAdapter: (() => void) | null = null
+let offConnection: (() => void) | null = null
+let offFound: (() => void) | null = null
 
-function handleConnect(index: number) {
-  deviceList.value[index].connected = true
+const filteredList = computed(() => {
+  const keyword = searchValue.value.trim().toLowerCase()
+  if (!keyword)
+    return deviceList.value
+  return deviceList.value.filter(item =>
+    item.name.toLowerCase().includes(keyword)
+    || item.mac.toLowerCase().includes(keyword),
+  )
+})
+
+function upsertDevice(device: BluetoothDevice, connected = false) {
+  const name = device.name || device.localName || '未知设备'
+  const index = deviceList.value.findIndex(item => item.deviceId === device.deviceId)
+  const next: DeviceItem = {
+    name,
+    mac: device.deviceId,
+    deviceId: device.deviceId,
+    rssi: device.RSSI,
+    connected: connected || deviceList.value[index]?.connected || false,
   }
 
-function handleDisconnect(index: number) {
-  deviceList.value[index].connected = false
+  if (index >= 0)
+    deviceList.value[index] = { ...deviceList.value[index], ...next, connected: deviceList.value[index].connected || connected }
+  else
+    deviceList.value.push(next)
 }
 
-function handleRefresh() {
-  console.log('刷新设备列表')
+function syncConnectedFlag(deviceId: string, connected: boolean) {
+  deviceList.value = deviceList.value.map(item => ({
+    ...item,
+    connected: item.deviceId === deviceId ? connected : (connected ? false : item.connected),
+  }))
 }
+
+async function refreshAdapterState() {
+  try {
+    bluetoothEnabled.value = await bluetooth.isEnabled()
+  }
+  catch {
+    bluetoothEnabled.value = false
+  }
+}
+
+async function handleBluetoothToggle(event: { detail: { value: boolean } }) {
+  const wantEnable = !!event.detail.value
+  try {
+    if (wantEnable) {
+      await bluetooth.turnOn()
+      bluetoothEnabled.value = true
+      uni.showToast({ title: '蓝牙已开启', icon: 'none' })
+    }
+    else {
+      await bluetooth.turnOff()
+      bluetoothEnabled.value = false
+      deviceList.value = []
+      uni.showToast({ title: '蓝牙已关闭', icon: 'none' })
+    }
+  }
+  catch (err) {
+    bluetoothEnabled.value = !wantEnable
+    const message = err instanceof Error ? err.message : '蓝牙开关失败'
+    uni.showToast({ title: message, icon: 'none', duration: 3000 })
+  }
+}
+
+async function handleRefresh() {
+  if (scanning.value)
+    return
+
+  if (!bluetoothEnabled.value) {
+    uni.showToast({ title: '请先开启蓝牙', icon: 'none' })
+    return
+  }
+
+  scanning.value = true
+  try {
+    // 有关键词时优先搜特定设备；否则全量扫描
+    const keyword = searchValue.value.trim()
+    if (keyword) {
+      try {
+        const device = await bluetooth.scanForDevice({ name: keyword, timeout: 12000 })
+        upsertDevice(device)
+        uni.showToast({ title: `已找到 ${device.name || device.deviceId}`, icon: 'none' })
+      }
+      catch {
+        // 特定搜索失败时退回全量扫描，再本地过滤
+        const devices = await bluetooth.startScan({ timeout: 10000 })
+        deviceList.value = devices.map(item => ({
+          name: item.name || item.localName || '未知设备',
+          mac: item.deviceId,
+          deviceId: item.deviceId,
+          rssi: item.RSSI,
+          connected: bluetooth.getConnection()?.deviceId === item.deviceId,
+        }))
+        if (!filteredList.value.length)
+          uni.showToast({ title: '未找到匹配设备', icon: 'none' })
+      }
+    }
+    else {
+      const devices = await bluetooth.startScan({ timeout: 10000 })
+      const connectedId = bluetooth.getConnection()?.deviceId
+      deviceList.value = devices.map(item => ({
+        name: item.name || item.localName || '未知设备',
+        mac: item.deviceId,
+        deviceId: item.deviceId,
+        rssi: item.RSSI,
+        connected: connectedId === item.deviceId,
+      }))
+      if (!devices.length)
+        uni.showToast({ title: '未发现蓝牙设备', icon: 'none' })
+    }
+  }
+  catch (err) {
+    const message = err instanceof Error ? err.message : '扫描失败'
+    console.error('蓝牙扫描失败:', err)
+    uni.showToast({ title: message, icon: 'none', duration: 3000 })
+  }
+  finally {
+    scanning.value = false
+  }
+}
+
+async function handleConnect(device: DeviceItem) {
+  if (connectingId.value || scanning.value)
+    return
+
+  connectingId.value = device.deviceId
+  try {
+    await bluetooth.setupConnection(device.deviceId)
+    syncConnectedFlag(device.deviceId, true)
+    uni.showToast({ title: '连接成功', icon: 'success' })
+  }
+  catch (err) {
+    const message = err instanceof Error ? err.message : '连接失败'
+    console.error('蓝牙连接失败:', err)
+    uni.showToast({ title: message, icon: 'none', duration: 3000 })
+  }
+  finally {
+    connectingId.value = ''
+  }
+}
+
+async function handleDisconnect(device: DeviceItem) {
+  try {
+    await bluetooth.disconnect(device.deviceId)
+    syncConnectedFlag(device.deviceId, false)
+    uni.showToast({ title: '已断开', icon: 'none' })
+  }
+  catch (err) {
+    const message = err instanceof Error ? err.message : '断开失败'
+    uni.showToast({ title: message, icon: 'none', duration: 3000 })
+  }
+}
+
+onMounted(async () => {
+  offAdapter = bluetooth.onAdapterStateChange((available) => {
+    bluetoothEnabled.value = available
+    if (!available)
+      deviceList.value = []
+  })
+
+  offConnection = bluetooth.onConnectionStateChange((state) => {
+    syncConnectedFlag(state.deviceId, state.connected)
+  })
+
+  offFound = bluetooth.onDeviceFound((device) => {
+    if (scanning.value)
+      upsertDevice(device)
+  })
+
+  try {
+    await bluetooth.open()
+    await refreshAdapterState()
+  }
+  catch (err) {
+    bluetoothEnabled.value = false
+    console.warn('蓝牙初始化:', err)
+  }
+})
+
+onUnmounted(() => {
+  offAdapter?.()
+  offConnection?.()
+  offFound?.()
+  bluetooth.stopScan().catch(() => undefined)
+})
 </script>
 
 <template>
@@ -43,12 +222,17 @@ function handleRefresh() {
         <text class="switch-label">
           蓝牙开关
         </text>
-        <switch :checked="bluetoothEnabled" color="#4685FD" @change="bluetoothEnabled = !bluetoothEnabled" />
+        <switch :checked="bluetoothEnabled" color="#4685FD" @change="handleBluetoothToggle" />
       </view>
 
       <!-- 搜索框 -->
       <view class="search-box">
-        <wd-search v-model="searchValue" placeholder="搜索蓝牙设备" hide-cancel placeholder-left />
+        <wd-search
+          v-model="searchValue"
+          placeholder="搜索蓝牙设备"
+          hide-cancel
+          placeholder-left
+        />
       </view>
 
       <!-- 设备列表标题 -->
@@ -57,13 +241,22 @@ function handleRefresh() {
           设备名称
         </text>
         <view class="refresh-btn" @tap="handleRefresh">
-          <wd-icon name="refresh" size="20px" color="#999999" />
+          <wd-icon
+            name="refresh"
+            size="20px"
+            color="#999999"
+            :class="{ spinning: scanning }"
+          />
         </view>
       </view>
 
+      <view v-if="!filteredList.length && !scanning" class="empty-tip">
+        {{ bluetoothEnabled ? '点击右上角刷新扫描附近设备' : '请先开启蓝牙' }}
+      </view>
+
       <!-- 设备列表 -->
       <view class="device-list">
-        <view v-for="(device, index) in deviceList" :key="index" class="device-item">
+        <view v-for="device in filteredList" :key="device.deviceId" class="device-item">
           <view class="device-info">
             <text class="device-name">
               {{ device.name }}
@@ -76,7 +269,9 @@ function handleRefresh() {
             v-if="!device.connected"
             size="small"
             round
-            @tap="handleConnect(index)"
+            :loading="connectingId === device.deviceId"
+            :disabled="!!connectingId && connectingId !== device.deviceId"
+            @tap="handleConnect(device)"
           >
             连接
           </wd-button>
@@ -85,7 +280,7 @@ function handleRefresh() {
             type="danger"
             size="small"
             round
-            @tap="handleDisconnect(index)"
+            @tap="handleDisconnect(device)"
           >
             断开
           </wd-button>
@@ -150,6 +345,13 @@ function handleRefresh() {
   padding: 4px;
 }
 
+.empty-tip {
+  font-size: 14px;
+  color: #999999;
+  text-align: center;
+  padding: 16px 0;
+}
+
 .device-list {
   display: flex;
   flex-direction: column;
@@ -168,6 +370,9 @@ function handleRefresh() {
 .device-info {
   display: flex;
   flex-direction: column;
+  min-width: 0;
+  flex: 1;
+  padding-right: 12px;
 }
 
 .device-name {
@@ -180,5 +385,15 @@ function handleRefresh() {
 .device-mac {
   font-size: 12px;
   color: #999999;
+  word-break: break-all;
+}
+
+.spinning {
+  animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+  from { transform: rotate(0deg); }
+  to { transform: rotate(360deg); }
 }
 </style>

src/utils/bluetooth.ts

@@ -0,0 +1,873 @@
+/**
+ * 蓝牙工具类 (uni-app BLE)
+ * 封装低功耗蓝牙开关、搜索、连接与收发
+ *
+ * ======================== 使用说明 ========================
+ *
+ * import bluetooth from '@/utils/bluetooth'
+ *
+ * // ---------- 蓝牙开关 ----------
+ * // 初始化蓝牙模块（使用前必须调用）
+ * await bluetooth.open()
+ *
+ * // 关闭蓝牙模块
+ * await bluetooth.close()
+ *
+ * // 检查蓝牙是否可用 / 是否已开启
+ * const enabled = await bluetooth.isEnabled()
+ *
+ * // 打开系统蓝牙（Android App，部分机型可能需用户手动开）
+ * await bluetooth.turnOn()
+ *
+ * // 关闭系统蓝牙（Android App）
+ * await bluetooth.turnOff()
+ *
+ * // 打开系统蓝牙设置页
+ * bluetooth.openSettings()
+ *
+ * // ---------- 蓝牙搜索 ----------
+ * // 扫描附近设备（默认 10 秒）
+ * const devices = await bluetooth.startScan({ timeout: 10000 })
+ *
+ * // 停止扫描
+ * await bluetooth.stopScan()
+ *
+ * // 获取已发现设备列表
+ * const list = await bluetooth.getDevices()
+ *
+ * // ---------- 蓝牙特定设备搜索 ----------
+ * // 按名称模糊匹配（找到即停）
+ * const device = await bluetooth.scanForDevice({ name: 'XS-65H', timeout: 15000 })
+ *
+ * // 按 deviceId / MAC 精确匹配
+ * const device2 = await bluetooth.scanForDevice({ deviceId: 'AA:BB:CC:DD:EE:FF' })
+ *
+ * // ---------- 连接 / 断开 ----------
+ * await bluetooth.connect(device.deviceId)
+ * await bluetooth.disconnect()
+ *
+ * // 自动发现可写 / 可通知特征值并启用 notify
+ * await bluetooth.setupConnection(device.deviceId)
+ *
+ * // ---------- 蓝牙传输数据 ----------
+ * // 发送字符串
+ * await bluetooth.send('hello')
+ *
+ * // 发送十六进制字符串
+ * await bluetooth.sendHex('01 02 0A FF')
+ *
+ * // 发送 ArrayBuffer
+ * await bluetooth.write(buffer)
+ *
+ * // ---------- 蓝牙接收数据 ----------
+ * // 监听收到的数据（返回取消函数）
+ * const off = bluetooth.onData((data) => {
+ *   console.log(data.hex)      // 十六进制
+ *   console.log(data.text)     // 文本
+ *   console.log(data.buffer)   // ArrayBuffer
+ * })
+ * off() // 取消监听
+ *
+ * // 监听连接状态
+ * const offState = bluetooth.onConnectionStateChange((state) => {
+ *   console.log(state.connected, state.deviceId)
+ * })
+ * offState()
+ *
+ * // ---------- 工具方法 ----------
+ * bluetooth.arrayBufferToHex(buffer)
+ * bluetooth.hexToArrayBuffer('01020AFF')
+ * bluetooth.stringToArrayBuffer('hello')
+ * bluetooth.arrayBufferToString(buffer)
+ *
+ * ======================== 前置条件 ========================
+ *
+ * - 主要用于 App（Android / iOS）BLE
+ * - manifest 需开启 Bluetooth 模块，并配置权限:
+ *   - android.permission.BLUETOOTH
+ *   - android.permission.BLUETOOTH_ADMIN
+ *   - android.permission.BLUETOOTH_SCAN
+ *   - android.permission.BLUETOOTH_CONNECT
+ *   - android.permission.ACCESS_FINE_LOCATION
+ * - Android 6+ 扫描通常需要定位权限，且系统定位开关需开启
+ */
+
+// ======================== 类型定义 ========================
+
+/** 蓝牙设备信息 */
+export interface BluetoothDevice {
+  name: string
+  deviceId: string
+  RSSI: number
+  advertisData?: ArrayBuffer
+  advertisServiceUUIDs?: string[]
+  localName?: string
+  serviceData?: Record<string, ArrayBuffer>
+}
+
+/** 扫描参数 */
+export interface ScanOptions {
+  /** 扫描超时 ms，默认 10000；传 0 表示不自动停止 */
+  timeout?: number
+  /** 是否允许重复上报同一设备，默认 false */
+  allowDuplicatesKey?: boolean
+  /** 按服务 UUID 过滤 */
+  services?: string[]
+  /** 功耗模式 */
+  powerLevel?: 'low' | 'medium' | 'high'
+}
+
+/** 特定设备搜索参数 */
+export interface ScanForDeviceOptions extends ScanOptions {
+  /** 设备名称（包含匹配，忽略大小写） */
+  name?: string
+  /** 设备 ID / MAC（精确匹配，忽略大小写） */
+  deviceId?: string
+  /** 自定义匹配函数 */
+  match?: (device: BluetoothDevice) => boolean
+}
+
+/** 写入参数 */
+export interface WriteOptions {
+  deviceId?: string
+  serviceId?: string
+  characteristicId?: string
+  /** 单包最大字节，默认 20 */
+  chunkSize?: number
+  /** 分包间隔 ms，默认 50 */
+  chunkDelay?: number
+}
+
+/** 接收到的数据 */
+export interface BluetoothReceiveData {
+  deviceId: string
+  serviceId: string
+  characteristicId: string
+  buffer: ArrayBuffer
+  hex: string
+  text: string
+}
+
+/** 连接状态 */
+export interface BluetoothConnectionState {
+  connected: boolean
+  deviceId: string
+}
+
+export type DataCallback = (data: BluetoothReceiveData) => void
+export type ConnectionStateCallback = (state: BluetoothConnectionState) => void
+export type DeviceFoundCallback = (device: BluetoothDevice, devices: BluetoothDevice[]) => void
+
+// ======================== 内部状态 ========================
+
+interface ActiveConnection {
+  deviceId: string
+  serviceId: string
+  writeCharacteristicId: string
+  notifyCharacteristicId: string
+}
+
+const state = {
+  opened: false,
+  scanning: false,
+  devices: new Map<string, BluetoothDevice>(),
+  connection: null as ActiveConnection | null,
+}
+
+const listeners = {
+  data: new Set<DataCallback>(),
+  connection: new Set<ConnectionStateCallback>(),
+  found: new Set<DeviceFoundCallback>(),
+}
+
+let deviceFoundBound = false
+let connectionStateBound = false
+let characteristicValueBound = false
+let scanTimer: ReturnType<typeof setTimeout> | null = null
+
+// ======================== 内部工具 ========================
+
+function delay(ms: number) {
+  return new Promise<void>(resolve => setTimeout(resolve, ms))
+}
+
+function normalizeId(id: string) {
+  return id.replace(/[:-]/g, '').toUpperCase()
+}
+
+function promisify<T = unknown>(
+  api: (options: any) => void,
+  options: Record<string, any> = {},
+): Promise<T> {
+  return new Promise((resolve, reject) => {
+    api({
+      ...options,
+      success: (res: T) => resolve(res),
+      fail: (err: any) => {
+        const msg = err?.errMsg || err?.message || JSON.stringify(err)
+        const code = err?.errCode ?? err?.code
+        reject(new Error(code != null ? `[${code}] ${msg}` : msg))
+      },
+    })
+  })
+}
+
+function mapDevice(raw: any): BluetoothDevice {
+  return {
+    name: raw.name || raw.localName || '',
+    deviceId: raw.deviceId || '',
+    RSSI: raw.RSSI ?? 0,
+    advertisData: raw.advertisData,
+    advertisServiceUUIDs: raw.advertisServiceUUIDs,
+    localName: raw.localName,
+    serviceData: raw.serviceData,
+  }
+}
+
+function ensureDeviceFoundListener() {
+  if (deviceFoundBound)
+    return
+  deviceFoundBound = true
+  uni.onBluetoothDeviceFound((res) => {
+    const list = res.devices || []
+    for (const raw of list) {
+      const device = mapDevice(raw)
+      if (!device.deviceId)
+        continue
+      state.devices.set(device.deviceId, device)
+      for (const cb of listeners.found)
+        cb(device, Array.from(state.devices.values()))
+    }
+  })
+}
+
+function ensureConnectionStateListener() {
+  if (connectionStateBound)
+    return
+  connectionStateBound = true
+  uni.onBLEConnectionStateChange((res) => {
+    const connected = !!res.connected
+    if (!connected && state.connection?.deviceId === res.deviceId)
+      state.connection = null
+
+    for (const cb of listeners.connection) {
+      cb({
+        connected,
+        deviceId: res.deviceId,
+      })
+    }
+  })
+}
+
+function ensureCharacteristicValueListener() {
+  if (characteristicValueBound)
+    return
+  characteristicValueBound = true
+  uni.onBLECharacteristicValueChange((res) => {
+    const buffer = res.value as ArrayBuffer
+    const payload: BluetoothReceiveData = {
+      deviceId: res.deviceId,
+      serviceId: res.serviceId,
+      characteristicId: res.characteristicId,
+      buffer,
+      hex: arrayBufferToHex(buffer),
+      text: arrayBufferToString(buffer),
+    }
+    for (const cb of listeners.data)
+      cb(payload)
+  })
+}
+
+function clearScanTimer() {
+  if (scanTimer) {
+    clearTimeout(scanTimer)
+    scanTimer = null
+  }
+}
+
+function getAndroidBluetoothAdapter() {
+  const BluetoothAdapter = (plus.android as any).importClass('android.bluetooth.BluetoothAdapter')
+  return BluetoothAdapter.getDefaultAdapter()
+}
+
+function requestBluetoothPermissions(): Promise<boolean> {
+  return new Promise((resolve) => {
+    try {
+      if (typeof plus === 'undefined' || !(plus as any).android) {
+        resolve(true)
+        return
+      }
+      ;(plus.android as any).requestPermissions(
+        [
+          'android.permission.ACCESS_FINE_LOCATION',
+          'android.permission.ACCESS_COARSE_LOCATION',
+          'android.permission.BLUETOOTH_SCAN',
+          'android.permission.BLUETOOTH_CONNECT',
+        ],
+        (result: { granted?: string[] }) => {
+          const granted = result?.granted || []
+          const ok = granted.some(p =>
+            p.includes('LOCATION')
+            || p.includes('BLUETOOTH_SCAN')
+            || p.includes('BLUETOOTH_CONNECT'),
+          )
+          resolve(ok || granted.length > 0)
+        },
+        () => resolve(false),
+      )
+    }
+    catch {
+      resolve(true)
+    }
+  })
+}
+
+// ======================== 编解码工具（模块级，供对象内外复用） ========================
+
+function arrayBufferToHex(buffer: ArrayBuffer): string {
+  const bytes = new Uint8Array(buffer)
+  return Array.from(bytes)
+    .map(b => b.toString(16).padStart(2, '0').toUpperCase())
+    .join(' ')
+}
+
+function hexToArrayBuffer(hex: string): ArrayBuffer {
+  const clean = hex.replace(/[\s,:_-]/g, '')
+  if (clean.length % 2 !== 0)
+    throw new Error('十六进制字符串长度必须为偶数')
+
+  const bytes = new Uint8Array(clean.length / 2)
+  for (let i = 0; i < bytes.length; i++) {
+    const byte = Number.parseInt(clean.slice(i * 2, i * 2 + 2), 16)
+    if (Number.isNaN(byte))
+      throw new Error(`无效十六进制: ${clean.slice(i * 2, i * 2 + 2)}`)
+    bytes[i] = byte
+  }
+  return bytes.buffer
+}
+
+function stringToArrayBuffer(text: string): ArrayBuffer {
+  const bytes = new Uint8Array(text.length)
+  for (let i = 0; i < text.length; i++)
+    bytes[i] = text.charCodeAt(i) & 0xFF
+  return bytes.buffer
+}
+
+function arrayBufferToString(buffer: ArrayBuffer): string {
+  const bytes = new Uint8Array(buffer)
+  let text = ''
+  for (let i = 0; i < bytes.length; i++)
+    text += String.fromCharCode(bytes[i])
+  return text
+}
+
+// ======================== 蓝牙工具 ========================
+
+const bluetooth = {
+  /** ArrayBuffer → 十六进制字符串 */
+  arrayBufferToHex,
+  /** 十六进制字符串 → ArrayBuffer */
+  hexToArrayBuffer,
+  /** 字符串 → ArrayBuffer */
+  stringToArrayBuffer,
+  /** ArrayBuffer → 字符串 */
+  arrayBufferToString,
+
+  // ---------- 蓝牙开关 ----------
+
+  /** 初始化蓝牙适配器 */
+  async open(): Promise<void> {
+    await requestBluetoothPermissions()
+    try {
+      await promisify(uni.openBluetoothAdapter)
+      state.opened = true
+    }
+    catch (err: any) {
+      // 10001: 蓝牙未开启，模块仍可用，可继续监听状态
+      if (String(err?.message || '').includes('10001')) {
+        state.opened = true
+        throw new Error('手机蓝牙未开启，请先打开蓝牙')
+      }
+      throw err
+    }
+    ensureConnectionStateListener()
+    ensureCharacteristicValueListener()
+  },
+
+  /** 关闭蓝牙适配器 */
+  async close(): Promise<void> {
+    clearScanTimer()
+    state.scanning = false
+    state.devices.clear()
+    state.connection = null
+    try {
+      await promisify(uni.closeBluetoothAdapter)
+    }
+    finally {
+      state.opened = false
+    }
+  },
+
+  /** 蓝牙是否可用（已开启） */
+  async isEnabled(): Promise<boolean> {
+    try {
+      if (!state.opened) {
+        try {
+          await this.open()
+        }
+        catch {
+          // open 失败时继续用 getBluetoothAdapterState 判断
+        }
+      }
+      const res = await promisify<{ available: boolean, discovering: boolean }>(
+        uni.getBluetoothAdapterState,
+      )
+      return !!res.available
+    }
+    catch {
+      try {
+        if (typeof plus !== 'undefined' && (plus as any).android) {
+          const adapter = getAndroidBluetoothAdapter()
+          return !!(plus.android as any).invoke(adapter, 'isEnabled')
+        }
+      }
+      catch {}
+      return false
+    }
+  },
+
+  /** 打开系统蓝牙（Android App） */
+  async turnOn(): Promise<void> {
+    try {
+      if (typeof plus !== 'undefined' && (plus as any).android) {
+        const adapter = getAndroidBluetoothAdapter()
+        if (!(plus.android as any).invoke(adapter, 'isEnabled'))
+          (plus.android as any).invoke(adapter, 'enable')
+        await delay(800)
+        await this.open().catch(() => undefined)
+        return
+      }
+      await this.open()
+    }
+    catch (err) {
+      this.openSettings()
+      throw new Error(`无法自动打开蓝牙，已跳转设置页: ${err}`)
+    }
+  },
+
+  /** 关闭系统蓝牙（Android App） */
+  async turnOff(): Promise<void> {
+    try {
+      if (state.connection)
+        await this.disconnect().catch(() => undefined)
+      await this.close().catch(() => undefined)
+
+      if (typeof plus !== 'undefined' && (plus as any).android) {
+        const adapter = getAndroidBluetoothAdapter()
+        if ((plus.android as any).invoke(adapter, 'isEnabled'))
+          (plus.android as any).invoke(adapter, 'disable')
+      }
+    }
+    catch (err) {
+      throw new Error(`关闭蓝牙失败: ${err}`)
+    }
+  },
+
+  /** 打开系统蓝牙设置页 */
+  openSettings(): void {
+    try {
+      if (typeof plus !== 'undefined' && (plus as any).android) {
+        const main = (plus.android as any).runtimeMainActivity()
+        const Intent = (plus.android as any).importClass('android.content.Intent')
+        const Settings = (plus.android as any).importClass('android.provider.Settings')
+        const intent = new Intent(Settings.ACTION_BLUETOOTH_SETTINGS)
+        main.startActivity(intent)
+        return
+      }
+    }
+    catch {}
+    uni.showToast({ title: '请在系统设置中打开蓝牙', icon: 'none' })
+  },
+
+  // ---------- 蓝牙搜索 ----------
+
+  /**
+   * 开始扫描附近蓝牙设备
+   * @returns 超时后的设备列表（timeout=0 时立即返回当前已发现列表）
+   */
+  async startScan(options: ScanOptions = {}): Promise<BluetoothDevice[]> {
+    if (!state.opened)
+      await this.open()
+
+    await requestBluetoothPermissions()
+    ensureDeviceFoundListener()
+
+    if (state.scanning)
+      await this.stopScan().catch(() => undefined)
+
+    state.devices.clear()
+    state.scanning = true
+
+    const {
+      timeout = 10000,
+      allowDuplicatesKey = false,
+      services,
+      powerLevel = 'medium',
+    } = options
+
+    await promisify(uni.startBluetoothDevicesDiscovery, {
+      allowDuplicatesKey,
+      services,
+      powerLevel,
+    })
+
+    if (!timeout || timeout <= 0)
+      return Array.from(state.devices.values())
+
+    return new Promise((resolve) => {
+      clearScanTimer()
+      scanTimer = setTimeout(async () => {
+        await this.stopScan().catch(() => undefined)
+        resolve(Array.from(state.devices.values()))
+      }, timeout)
+    })
+  },
+
+  /** 停止扫描 */
+  async stopScan(): Promise<void> {
+    clearScanTimer()
+    if (!state.scanning) {
+      try {
+        await promisify(uni.stopBluetoothDevicesDiscovery)
+      }
+      catch {}
+      return
+    }
+    state.scanning = false
+    try {
+      await promisify(uni.stopBluetoothDevicesDiscovery)
+    }
+    catch {}
+  },
+
+  /** 获取已发现的设备列表 */
+  async getDevices(): Promise<BluetoothDevice[]> {
+    try {
+      const res = await promisify<{ devices: any[] }>(uni.getBluetoothDevices)
+      const list = (res.devices || []).map(mapDevice)
+      for (const device of list)
+        state.devices.set(device.deviceId, device)
+      return Array.from(state.devices.values())
+    }
+    catch {
+      return Array.from(state.devices.values())
+    }
+  },
+
+  /** 监听扫描过程中发现的设备 */
+  onDeviceFound(callback: DeviceFoundCallback): () => void {
+    ensureDeviceFoundListener()
+    listeners.found.add(callback)
+    return () => listeners.found.delete(callback)
+  },
+
+  // ---------- 蓝牙特定设备搜索 ----------
+
+  /**
+   * 搜索特定设备，找到即停止扫描
+   * 可通过 name / deviceId / match 指定目标
+   */
+  async scanForDevice(options: ScanForDeviceOptions): Promise<BluetoothDevice> {
+    const { name, deviceId, match, timeout = 15000, ...scanOptions } = options
+    if (!name && !deviceId && !match)
+      throw new Error('请至少指定 name、deviceId 或 match')
+
+    const matched = (device: BluetoothDevice) => {
+      if (match)
+        return match(device)
+      if (deviceId && normalizeId(device.deviceId) === normalizeId(deviceId))
+        return true
+      if (name) {
+        const target = name.toLowerCase()
+        return (device.name || '').toLowerCase().includes(target)
+          || (device.localName || '').toLowerCase().includes(target)
+      }
+      return false
+    }
+
+    // 先看缓存
+    for (const device of state.devices.values()) {
+      if (matched(device))
+        return device
+    }
+
+    if (!state.opened)
+      await this.open()
+
+    ensureDeviceFoundListener()
+    if (state.scanning)
+      await this.stopScan().catch(() => undefined)
+
+    state.devices.clear()
+    state.scanning = true
+
+    await promisify(uni.startBluetoothDevicesDiscovery, {
+      allowDuplicatesKey: scanOptions.allowDuplicatesKey ?? false,
+      services: scanOptions.services,
+      powerLevel: scanOptions.powerLevel ?? 'medium',
+    })
+
+    return new Promise((resolve, reject) => {
+      let settled = false
+
+      const off = this.onDeviceFound((device) => {
+        if (settled || !matched(device))
+          return
+        settled = true
+        clearScanTimer()
+        off()
+        this.stopScan().finally(() => resolve(device))
+      })
+
+      clearScanTimer()
+      scanTimer = setTimeout(() => {
+        if (settled)
+          return
+        settled = true
+        off()
+        this.stopScan().finally(() => {
+          reject(new Error(`未找到目标蓝牙设备${name ? `: ${name}` : ''}`))
+        })
+      }, timeout)
+    })
+  },
+
+  // ---------- 连接 ----------
+
+  /** 连接设备 */
+  async connect(deviceId: string, timeout = 10000): Promise<void> {
+    if (!deviceId)
+      throw new Error('deviceId 不能为空')
+    if (!state.opened)
+      await this.open()
+
+    await this.stopScan().catch(() => undefined)
+    ensureConnectionStateListener()
+
+    await promisify(uni.createBLEConnection, {
+      deviceId,
+      timeout,
+    })
+
+    // Android 上连接后需短暂等待再发现服务
+    await delay(800)
+  },
+
+  /** 断开当前或指定设备 */
+  async disconnect(deviceId?: string): Promise<void> {
+    const id = deviceId || state.connection?.deviceId
+    if (!id)
+      return
+
+    try {
+      await promisify(uni.closeBLEConnection, { deviceId: id })
+    }
+    finally {
+      if (state.connection?.deviceId === id)
+        state.connection = null
+    }
+  },
+
+  /**
+   * 连接并自动挑选可写 / 可通知特征值，启用 notify
+   * 之后可直接 send / onData
+   */
+  async setupConnection(
+    deviceId: string,
+    options?: {
+      serviceId?: string
+      writeCharacteristicId?: string
+      notifyCharacteristicId?: string
+      timeout?: number
+    },
+  ): Promise<ActiveConnection> {
+    await this.connect(deviceId, options?.timeout)
+
+    let serviceId = options?.serviceId || ''
+    let writeCharacteristicId = options?.writeCharacteristicId || ''
+    let notifyCharacteristicId = options?.notifyCharacteristicId || ''
+
+    if (!serviceId || !writeCharacteristicId || !notifyCharacteristicId) {
+      const servicesRes = await promisify<{ services: Array<{ uuid: string, isPrimary: boolean }> }>(
+        uni.getBLEDeviceServices,
+        { deviceId },
+      )
+      const services = servicesRes.services || []
+
+      for (const service of services) {
+        const charsRes = await promisify<{
+          characteristics: Array<{
+            uuid: string
+            properties: {
+              read?: boolean
+              write?: boolean
+              writeNoResponse?: boolean
+              notify?: boolean
+              indicate?: boolean
+            }
+          }>
+        }>(uni.getBLEDeviceCharacteristics, {
+          deviceId,
+          serviceId: service.uuid,
+        })
+
+        for (const char of charsRes.characteristics || []) {
+          const props = char.properties || {}
+          if (!writeCharacteristicId && (props.write || props.writeNoResponse))
+            writeCharacteristicId = char.uuid
+          if (!notifyCharacteristicId && (props.notify || props.indicate))
+            notifyCharacteristicId = char.uuid
+        }
+
+        if ((!serviceId && (writeCharacteristicId || notifyCharacteristicId))
+          || (writeCharacteristicId && notifyCharacteristicId)) {
+          serviceId = service.uuid
+          if (writeCharacteristicId && notifyCharacteristicId)
+            break
+        }
+      }
+    }
+
+    if (!serviceId)
+      throw new Error('未找到可用的蓝牙服务')
+    if (!writeCharacteristicId && !notifyCharacteristicId)
+      throw new Error('未找到可写或可通知的特征值')
+
+    // 没有单独 notify 特征时，尽量复用写特征
+    if (!notifyCharacteristicId)
+      notifyCharacteristicId = writeCharacteristicId
+    if (!writeCharacteristicId)
+      writeCharacteristicId = notifyCharacteristicId
+
+    if (notifyCharacteristicId) {
+      ensureCharacteristicValueListener()
+      await promisify(uni.notifyBLECharacteristicValueChange, {
+        deviceId,
+        serviceId,
+        characteristicId: notifyCharacteristicId,
+        state: true,
+      })
+      // 部分 Android 机型 notify 后需延迟再写
+      await delay(400)
+    }
+
+    state.connection = {
+      deviceId,
+      serviceId,
+      writeCharacteristicId,
+      notifyCharacteristicId,
+    }
+    return { ...state.connection }
+  },
+
+  /** 获取当前连接信息 */
+  getConnection(): ActiveConnection | null {
+    return state.connection ? { ...state.connection } : null
+  },
+
+  // ---------- 蓝牙传输数据 ----------
+
+  /** 写入 ArrayBuffer（自动分包） */
+  async write(buffer: ArrayBuffer, options: WriteOptions = {}): Promise<void> {
+    const deviceId = options.deviceId || state.connection?.deviceId
+    const serviceId = options.serviceId || state.connection?.serviceId
+    const characteristicId = options.characteristicId || state.connection?.writeCharacteristicId
+    const chunkSize = options.chunkSize ?? 20
+    const chunkDelay = options.chunkDelay ?? 50
+
+    if (!deviceId || !serviceId || !characteristicId)
+      throw new Error('请先 setupConnection，或传入 deviceId / serviceId / characteristicId')
+
+    const bytes = new Uint8Array(buffer)
+    for (let offset = 0; offset < bytes.length; offset += chunkSize) {
+      const chunk = bytes.slice(offset, offset + chunkSize)
+      // 复制到新 buffer，避免底层引用问题
+      const value = chunk.buffer.slice(chunk.byteOffset, chunk.byteOffset + chunk.byteLength)
+      await promisify(uni.writeBLECharacteristicValue, {
+        deviceId,
+        serviceId,
+        characteristicId,
+        value,
+      })
+      if (offset + chunkSize < bytes.length)
+        await delay(chunkDelay)
+    }
+  },
+
+  /** 发送字符串 */
+  async send(text: string, options?: WriteOptions): Promise<void> {
+    await this.write(stringToArrayBuffer(text), options)
+  },
+
+  /** 发送十六进制字符串，如 '01 0A FF' */
+  async sendHex(hex: string, options?: WriteOptions): Promise<void> {
+    await this.write(hexToArrayBuffer(hex), options)
+  },
+
+  // ---------- 蓝牙接收数据 ----------
+
+  /**
+   * 启用指定特征值的 notify（若已 setupConnection 通常不必再调）
+   */
+  async enableNotify(params?: {
+    deviceId?: string
+    serviceId?: string
+    characteristicId?: string
+  }): Promise<void> {
+    const deviceId = params?.deviceId || state.connection?.deviceId
+    const serviceId = params?.serviceId || state.connection?.serviceId
+    const characteristicId = params?.characteristicId || state.connection?.notifyCharacteristicId
+
+    if (!deviceId || !serviceId || !characteristicId)
+      throw new Error('缺少 deviceId / serviceId / characteristicId')
+
+    ensureCharacteristicValueListener()
+    await promisify(uni.notifyBLECharacteristicValueChange, {
+      deviceId,
+      serviceId,
+      characteristicId,
+      state: true,
+    })
+  },
+
+  /** 监听接收数据，返回取消监听函数 */
+  onData(callback: DataCallback): () => void {
+    ensureCharacteristicValueListener()
+    listeners.data.add(callback)
+    return () => listeners.data.delete(callback)
+  },
+
+  /** 监听连接状态变化 */
+  onConnectionStateChange(callback: ConnectionStateCallback): () => void {
+    ensureConnectionStateListener()
+    listeners.connection.add(callback)
+    return () => listeners.connection.delete(callback)
+  },
+
+  /** 监听适配器开关状态 */
+  onAdapterStateChange(callback: (available: boolean, discovering: boolean) => void): () => void {
+    const handler = (res: { available: boolean, discovering: boolean }) => {
+      callback(!!res.available, !!res.discovering)
+    }
+    uni.onBluetoothAdapterStateChange(handler)
+    return () => {
+      // uni-app 无对应 off，置空回调避免业务继续执行
+      try {
+        uni.offBluetoothAdapterStateChange?.(handler as any)
+      }
+      catch {}
+    }
+  },
+}
+
+export default bluetooth