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@ -189,48 +189,75 @@ object BleService { |
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// ====================================================================================================== |
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// 扫描功能 |
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// ====================================================================================================== |
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fun reinitializeBle() { |
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val manager = context.getSystemService(Context.BLUETOOTH_SERVICE) as BluetoothManager |
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bluetoothAdapter = manager.adapter // 重新获取新引用 |
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bluetoothLeScanner = bluetoothAdapter?.bluetoothLeScanner |
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} |
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/** |
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* 开始主动扫描BLE设备 |
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* @param timeout 扫描超时时间（毫秒） |
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* @return 是否成功开始扫描 |
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*/ |
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fun startScan(timeout: Long = 15000): Boolean { |
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fun startScan(deviceName:String,timeout: Long = 15000): Boolean { |
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// Log.i(TAG, "liwei---------startScan 1 $deviceName") |
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if (!isInitialized) { |
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Log.e(TAG, "BLE服务未初始化") |
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return false |
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} |
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// Log.i(TAG, "liwei---------startScan 2") |
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// 获取一个局部引用，避免并发访问问题 |
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val scanner = bluetoothLeScanner ?: return false |
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// val scanner = bluetoothLeScanner ?: return false |
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// 💡 每次都重新取最新实例 |
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val scanner = bluetoothLeScanner ?: run { |
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Log.e(TAG, "bluetoothLeScanner == null，尝试重启蓝牙") |
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reinitializeBle() |
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return false |
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} |
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// Log.i(TAG, "liwei---------startScan 3") |
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if (isScanning) return false |
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// Log.i(TAG, "liwei---------startScan 4") |
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Log.i(TAG, "开始主动扫描BLE设备...") |
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scanResults.clear() |
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// Log.i(TAG, "liwei---------startScan 5") |
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// val filter = ScanFilter.Builder() |
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// // .setServiceUuid(ParcelUuid(BleConst.PRIMARY_SERVICE_UUID)) |
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// .setManufacturerData(0xEFAB, byteArrayOf(0xA0.toByte(), 0x01)) |
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// .build() |
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// Log.i(TAG, "liwei---------startScan 6") |
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// val settings = ScanSettings.Builder() |
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// .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY) |
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// // .setCallbackType(ScanSettings.CALLBACK_TYPE_FIRST_MATCH) |
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// .setCallbackType(ScanSettings.CALLBACK_TYPE_FIRST_MATCH) // 使用ALL_MATCHES获取所有结果 |
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// .setReportDelay(0) // 立即报告结果 |
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// .build() |
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val filter = ScanFilter.Builder() |
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// 建议用 Service UUID 或 Device Name 替代 Manufacturer Data |
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// .setServiceUuid(ParcelUuid(BleConst.PRIMARY_SERVICE_UUID)) |
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.setManufacturerData(0xEFAB, byteArrayOf(0xA0.toByte(), 0x01)) |
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// .setDeviceName(deviceName) // 更通用、更安全 |
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.build() |
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val settings = ScanSettings.Builder() |
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.setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY) |
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// .setCallbackType(ScanSettings.CALLBACK_TYPE_FIRST_MATCH) |
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.setCallbackType(ScanSettings.CALLBACK_TYPE_FIRST_MATCH) // 使用ALL_MATCHES获取所有结果 |
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.setReportDelay(0) // 立即报告结果 |
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.setCallbackType(ScanSettings.CALLBACK_TYPE_ALL_MATCHES) // 推荐：不会触发权限问题 |
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.setReportDelay(0) |
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.build() |
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// Log.i(TAG, "liwei---------startScan 7") |
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try { |
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scanner.startScan(listOf(filter), settings, scanCallback) |
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isScanning = true |
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// Log.i(TAG, "liwei---------startScan 8") |
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// 设置扫描超时 |
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scanHandler.postDelayed({ |
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Log.d(TAG, "扫描超时，停止扫描") |
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stopScan() |
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}, timeout) |
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// Log.i(TAG, "liwei---------startScan 9") |
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return true |
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} catch (e: Exception) { |
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Log.e(TAG, "启动扫描失败: ${e.message}", e) |
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// Log.i(TAG, "liwei---------startScan 10") |
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isScanning = false |
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return false |
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} |
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@ -296,6 +323,7 @@ object BleService { |
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override fun onScanFailed(errorCode: Int) { |
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Log.e(TAG, "扫描失败 error=$errorCode") |
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stopScan() |
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isScanning = false |
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} |
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} |
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@ -306,6 +334,7 @@ object BleService { |
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val idx = scanResults.indexOfFirst { it.device.address == address } |
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Log.d(TAG, "获取设备信息:${address} idx:$idx") |
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if (idx >= 0){ |
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stopScan() |
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val result = scanResults[idx]; |
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return printDeviceInfo(result) |
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} |
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@ -321,9 +350,9 @@ object BleService { |
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val serviceUuids = |
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scanRecord?.serviceUuids?.joinToString(", ") { it.uuid.toString() } ?: "无" |
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Log.d( |
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TAG, "liwei--------- 扫描到设备: 名称=${device.name ?: "未知"}, 地址=${device.address}, " + |
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"RSSI=${result.rssi}, 服务UUID=[$serviceUuids]" |
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// Log.d( |
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// TAG, "liwei--------- 扫描到设备: 名称=${device.name ?: "未知"}, 地址=${device.address}, " + |
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// "RSSI=${result.rssi}, 服务UUID=[$serviceUuids]" |
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) |
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val info = mutableMapOf( |
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"name" to (device.name ?: "未知"), |
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@ -333,7 +362,7 @@ object BleService { |
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val scanData = scanRecord?.bytes |
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if (scanData != null) { |
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val hexString = scanData.joinToString("") { String.format("%02X", it) } |
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Log.d(TAG, "liwei------------ 广播数据: $hexString") |
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// Log.d(TAG, "liwei------------ 广播数据: $hexString") |
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info["hex"] = hexString |
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// 解析服务数据 |
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scanRecord.serviceData?.forEach { (uuid, data) -> |
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