先通过地址判断:/sys/class/net/eth0/address ,常由于权限原因而无法访问;
故还需使用另外一种方式读取
@SuppressLint("HardwareIds")
@Override
protected void updateConnectivity() {
try (BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(
"/sys/class/net/eth0/address")))) {
String ethernetMacAddress = input.readLine();
mEthernetMacAddress.setSummary(ethernetMacAddress);
} catch (IOException ex) {
final String macAddress = getEthernetMacAddress();
if (TextUtils.isEmpty(macAddress)) {
mEthernetMacAddress.setSummary(mUnavailable);
} else {
mEthernetMacAddress.setSummary(macAddress);
}
}
}
private Network getFirstEthernet() {
final Network[] networks = mCM.getAllNetworks();
for (final Network network : networks) {
NetworkInfo networkInfo = mCM.getNetworkInfo(network);
if (networkInfo != null && networkInfo.getType() == ConnectivityManager.TYPE_ETHERNET) {
return network;
}
}
return null;
}
private String getEthernetMacAddress() {
final Network network = getFirstEthernet();
return network != null ? mCM.getNetworkInfo(network).getExtraInfo() : null;
}
显示以太网Mac地址的方法
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转载自blog.csdn.net/liuminx/article/details/106521121
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