Android 中 获取设备的 Mac 地址

通过设备上的网络名称，可以获取设备 mac 码

private fun getMacAddress(name: String): String? {
       Log.d(tag, "[getMacAddress] name: $name")
       try {
           val process = Runtime.getRuntime().exec("cat /sys/class/net/$name/address")
           val inputStream = process.inputStream
           val reader = BufferedReader(InputStreamReader(inputStream))
           val macAddress = reader.readLine()
           reader.close()
           Log.d(tag, "[getMacAddress] mac: $macAddress")
           return macAddress
       } catch (e: java.lang.Exception) {
           e.printStackTrace()
       }
       return null
   }

调用：

getMacAddress("eth0")
getMacAddress("eth1")
getMacAddress("wlan0")