扫描时如何在Android中读取Bluetooth 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设备可以将消息广播到其他设备.该消息包可以包含长度，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Bluetooth LE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级别21 +

在 android.bluetooth.le.ScanCallback 中，以下回调方法具有名为 result 的参数，该参数具有名为 scanRecord 的字段，其中应包含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，以下回调方法具有名为 scanRecord 的参数，该参数应包含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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