如何在扫描时读取Android中的蓝牙LE广告数据 [英] How can I read the Bluetooth LE advertisement data in Android at the time of scanning

问题描述

蓝牙 LE 设备可以向其他设备广播消息.该消息包可以包含诸如长度、配置文件、RSSI(信号强度)等信息.

Bluetooth LE devices can broadcast messages to other devices. That message packet can include informations like length, profile, rssi (signal strength), etc.

在 Android 中扫描 BLE 设备时如何读取那些低功耗蓝牙广播数据?

How can I read those Bluetooth LE broadcast data when scanning for BLE devices in Android?

推荐答案

API Levels 21+

在android.bluetooth.le.ScanCallback中，如下回调方法有一个名为result的参数，它有一个名为scanRecord的字段, with 应该包含 BLE 设备发送的广告数据.

In android.bluetooth.le.ScanCallback, the callback method as follows has a parameter named result, which has a field called scanRecord, with should contain the advertisement data sent by a BLE device.

void onScanResult (int callbackType, ScanResult result)

API 级别 18-20

在BluetoothAdapter.LeScanCallback中，回调方法有一个名为scanRecord的参数，里面应该包含BLE设备发送的广告数据.

In BluetoothAdapter.LeScanCallback, the callback method as follows has a parameter named scanRecord, which should contain the advertisement data sent by a BLE device.

public abstract void onLeScan (BluetoothDevice device, int rssi, byte[] scanRecord)

scanRecord:远程设备提供的广告记录的内容.

scanRecord: The content of the advertisement record offered by the remote device.

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