如何在Android 3.x或4.x上以编程方式配置静态IP地址,网络掩码,网关

<application
    ...
    android:usesCleartextTraffic="true">
    ...
</application>

// 获取网络接口
NetworkInterface networkInterface = NetworkInterface.getByName("eth0");

// 获取IP地址
byte[] ipAddress = networkInterface.getHardwareAddress();
String ipAddressString = new String(ipAddress);

// 获取网络掩码
byte[] netmask = networkInterface.getNetworkPrefixLength();
String netmaskString = new String(netmask);

// 获取网关
byte[] gatewayAddress = networkInterface.getGateway();
String gatewayAddressString = new String(gatewayAddress);

// 设置IP地址
IpConnection.setIPAddress(ipAddressString);

// 设置网络掩码
IpConnection.setNetworkMask(netmaskString);

// 设置网关
IpConnection.setGatewayAddress(gatewayAddressString);

// 获取网络接口
val networkInterface = NetworkInterface.getByName("eth0")

// 获取IP地址
val ipAddress = networkInterface.hardwareAddress
val ipAddressString = ipAddress.toString()

// 获取网络掩码
val netmask = networkInterface.networkPrefixLength
val netmaskString = netmask.toString()

// 获取网关
val gatewayAddress = networkInterface.gateway
val gatewayAddressString = gatewayAddress.toString()

// 设置IP地址
IpConnection.setIPAddress(ipAddressString)

// 设置网络掩码
IpConnection.setNetworkMask(netmaskString)

// 设置网关
IpConnection.setGatewayAddress(gatewayAddressString)