安卓9.0设置WIFI静态IP地址。

简单的一个函数实现对wifi设置静态或动态IP地址。

一、需要的权限

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.OVERRIDE_WIFI_CONFIG"tools:ignore="ProtectedPermissions" />

可以删除该WiFi 和修改。

二、清单文件需要将shareduserid设置成system。

android:sharedUserId="android.uid.system"

三、具体函数，函数执行条件是wifi开关打开，并且要设置的wifi已经连接成功。

    // 定义几种加密方式，一种是WEP，一种是WPA，还有没有密码的情况public enum WifiCipherType {WIFICIPHER_WEP, WIFICIPHER_WPA, WIFICIPHER_NOPASS, WIFICIPHER_INVALID}/*** @param context   use Application context is better* @param ipAddress ip address: like 192.168.1.168* @param mode      : STATIC or DHCP, set static or dhcp ip mode* @param netmask   ip mask, like 255.255.255.0* @param gateway   gateway, like 192.168.1.1* @param dns1      dns 1* @param dns2      dns 2, if mode=static, then can use "" or null* @param ssid current has connected wifi ssid* @param pwd current has connected wifi pwd* @param wifiCipherType current has connected wifi capabilities*                  eg. dhcp mode: setWifiStaticIP(ApplicationContext, "DHCP", "", "", "", "", "", "test", "123456", WifiCipherType.WIFICIPHER_WPA);*                  static mode: setWifiStaticIP(ApplicationContext, "STATIC",*                  "192.168.1.168", "255.255.255.0",*                  "192.168.1.1", "114.114.114.114", "8.8.8.8", "test", "123456", WifiCipherType.WIFICIPHER_WPA);*                  for android 9.0*/public static boolean setWifiStaticIP(Context context, String mode, String ipAddress, String netmask,String gateway, String dns1, String dns2,String ssid, String pwd, WifiCipherType wifiCipherType) {if (context == null || (!"STATIC".equals(mode) && !"DHCP".equals(mode))|| TextUtils.isEmpty(ssid) || wifiCipherType == null|| TextUtils.isEmpty(wifiCipherType.name())) {Log.d(TAG, " setWifiStaticIP failed, param incorrect context=" + context + ", mode=" + mode);return false;}try {WifiManager wifiManager = ((WifiManager) context.getSystemService(Context.WIFI_SERVICE));if ("DHCP".equals(mode)) {IpConfiguration dhcpConfiguration = new IpConfiguration(IpConfiguration.IpAssignment.DHCP,IpConfiguration.ProxySettings.NONE, null, null);dhcpConfiguration.setIpAssignment(IpConfiguration.IpAssignment.DHCP);WifiConfiguration wifiConfiguration = createWifiConfig(ssid, pwd, wifiCipherType, dhcpConfiguration);// current assignment is DHCP OR STATICString assignMent = wifiConfiguration.getIpConfiguration().ipAssignment.name();Log.d(TAG, " setWifiStaticIP assignMent=" + assignMent + ", mode=" + mode);wifiManager.setWifiApConfiguration(wifiConfiguration);// update networkwifiManager.updateNetwork(wifiConfiguration);// reconnectint netId = wifiManager.addNetwork(wifiConfiguration);wifiManager.disableNetwork(netId);wifiManager.enableNetwork(netId, true);Log.i(TAG, " setWifiStaticIP dhcp set success");return true;}// set static ip addressIpConfiguration ipConfiguration = getStaticIpConfiguration(ipAddress, netmask, gateway, dns1, dns2);if (ipConfiguration != null) {WifiConfiguration wifiConfiguration = createWifiConfig(ssid, pwd, wifiCipherType, ipConfiguration);wifiManager.setWifiApConfiguration(wifiConfiguration);// update networkwifiManager.updateNetwork(wifiConfiguration);// reconnectint netId = wifiManager.addNetwork(wifiConfiguration);wifiManager.disableNetwork(netId);wifiManager.enableNetwork(netId, true);Log.i(TAG, "setWifiStaticIP set static ip success");return true;} else {Log.w(TAG, "setWifiStaticIP set static ip failed");return false;}} catch (Exception e) {Log.e(TAG, "setWifiStaticIP e=" + e.getMessage());}return false;}private static IpConfiguration getStaticIpConfiguration(String ipAddress, String netmask, String gateway, String dns1, String dns2) {try {StaticIpConfiguration staticIpConfiguration = new StaticIpConfiguration();int prefixLength = maskStr2InetMask(netmask);InetAddress inetAddr = null;InetAddress gatewayAddr = getIPv4Address(gateway);InetAddress dnsAddr = getIPv4Address(dns1);if (TextUtils.isEmpty(ipAddress)) {inetAddr = getLocalIPAddress();} else {String[] ipStr = ipAddress.split("\\.");byte[] ipBuf = new byte[4];for (int i = 0; i < 4; i++) {ipBuf[i] = (byte) (Integer.parseInt(ipStr[i]) & 0xff);}try {inetAddr = InetAddress.getByAddress(ipBuf);Log.d(TAG, "getStaticIpConfiguration  address correct inetAddr=" + inetAddr);} catch (UnknownHostException e) {e.printStackTrace();}}if (inetAddr == null || inetAddr.getAddress().toString().isEmpty()|| prefixLength == 0 || gatewayAddr.toString().isEmpty()|| dnsAddr == null || dnsAddr.toString().isEmpty()) {Log.d(TAG, " getStaticIpConfiguration  address incorrect inetAddr=" + inetAddr);return null;}Class<?> linkAddressClass = null;linkAddressClass = Class.forName("android.net.LinkAddress");Class[] cl = new Class[]{InetAddress.class, int.class};Constructor cons = null;try {cons = linkAddressClass.getConstructor(cl);} catch (NoSuchMethodException e) {e.printStackTrace();}Object[] x = {inetAddr, prefixLength};try {staticIpConfiguration.ipAddress = (LinkAddress) cons.newInstance(x);Log.d(TAG, " getStaticIpConfiguration staticIpConfiguration.ipAddress=" + staticIpConfiguration.ipAddress);} catch (InstantiationException | IllegalAccessException | InvocationTargetException e) {e.printStackTrace();}staticIpConfiguration.gateway = gatewayAddr;staticIpConfiguration.dnsServers.add(dnsAddr);if (!dns2.isEmpty())staticIpConfiguration.dnsServers.add(getIPv4Address(dns2));Log.d(TAG, " getStaticIpConfiguration staticIpConfiguration  ====" + staticIpConfiguration+ ", inetAddr=" + inetAddr);IpConfiguration ipConfiguration = new IpConfiguration(IpConfiguration.IpAssignment.STATIC,IpConfiguration.ProxySettings.NONE, staticIpConfiguration, null);ipConfiguration.setIpAssignment(IpConfiguration.IpAssignment.STATIC);ipConfiguration.setStaticIpConfiguration(staticIpConfiguration);return ipConfiguration;} catch (Exception e) {Log.e(TAG, "getStaticIpConfiguration ERROR=" + e.getMessage());}return null;}

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2020/07/22补充上述中缺失的函数。

    /** convert subMask string to prefix length*/public static int maskStr2InetMask(String maskStr) {StringBuffer sb;String str;int inetmask = 0;int count = 0;/** check the subMask format*/Pattern pattern = Pattern.compile("(^((\\d|[01]?\\d\\d|2[0-4]\\d|25[0-5])\\.){3}(\\d|[01]?\\d\\d|2[0-4]\\d|25[0-5])$)|^(\\d|[1-2]\\d|3[0-2])$");if (pattern.matcher(maskStr).matches() == false) {Log.e(TAG, "subMask is error");return 0;}String[] ipSegment = maskStr.split("\\.");for (int n = 0; n < ipSegment.length; n++) {sb = new StringBuffer(Integer.toBinaryString(Integer.parseInt(ipSegment[n])));str = sb.reverse().toString();count = 0;for (int i = 0; i < str.length(); i++) {i = str.indexOf("1", i);if (i == -1)break;count++;}inetmask += count;}return inetmask;}

public static InetAddress getIPv4Address(String text) {try {return NetworkUtils.numericToInetAddress(text);} catch (IllegalArgumentException | ClassCastException e) {return null;}}

    /*** Get local Ip address.*/public static InetAddress getLocalIPAddress() {Enumeration<NetworkInterface> enumeration = null;try {enumeration = NetworkInterface.getNetworkInterfaces();} catch (SocketException e) {e.printStackTrace();}if (enumeration != null) {while (enumeration.hasMoreElements()) {NetworkInterface nif = enumeration.nextElement();Enumeration<InetAddress> inetAddresses = nif.getInetAddresses();if (inetAddresses != null) {while (inetAddresses.hasMoreElements()) {InetAddress inetAddress = inetAddresses.nextElement();if (!inetAddress.isLoopbackAddress() && isIPv4Address(inetAddress.getHostAddress())) {return inetAddress;}}}}}return null;}

public static WifiConfiguration createWifiConfig(String SSID, String password,WifiCipherType type,IpConfiguration ipConfiguration) {WifiConfiguration config = new WifiConfiguration();config.allowedAuthAlgorithms.clear();config.allowedGroupCiphers.clear();config.allowedKeyManagement.clear();config.allowedPairwiseCiphers.clear();config.allowedProtocols.clear();config.SSID = "\"" + SSID + "\"";config.setIpConfiguration(ipConfiguration);if (type == WifiCipherType.WIFICIPHER_NOPASS) {
//            config.wepKeys[0] = "";  //注意这里config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
//            config.wepTxKeyIndex = 0;}if (type == WifiCipherType.WIFICIPHER_WEP) {config.preSharedKey = "\"" + password + "\"";config.hiddenSSID = true;config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP104);config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);config.wepTxKeyIndex = 0;}if (type == WifiCipherType.WIFICIPHER_WPA) {config.preSharedKey = "\"" + password + "\"";config.hiddenSSID = true;config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP);config.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP);config.status = WifiConfiguration.Status.ENABLED;}return config;}

    /*** Ipv4 address check.*/private static final Pattern IPV4_PATTERN = Pattern.compile("^(" + "([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}" +"([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$");/*** Check if valid IPV4 address.** @param input the address string to check for validity.* @return True if the input parameter is a valid IPv4 address.*/public static boolean isIPv4Address(String input) {return IPV4_PATTERN.matcher(input).matches();}

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2021/1/7补充，设置当前连接的wifi为静态IP或自动获取IP ，在安卓5.1.1测试通过，这样就不需要传入SSID，密码和加密方式了。

    /*** @param context   use Application context is better* @param ipAddress ip address: like 192.168.1.168* @param mode      : STATIC or DHCP, set static or dhcp ip mode* @param netmask   ip mask, like 255.255.255.0* @param gateway   gateway, like 192.168.1.1* @param dns1      dns 1* @param dns2      dns 2, if mode=static, then can use "" or null*                  eg. dhcp mode: setWifiStaticIP(ApplicationContext, "DHCP", "", "", "", "", "");*                  static mode: setWifiStaticIP(ApplicationContext, "STATIC",*                  "192.168.1.168", "255.255.255.0",*                  "192.168.1.1", "114.114.114.114", "8.8.8.8");*                  for android 9.0 or 5.1*/public boolean setWifiStaticIP(Context context, String mode, String ipAddress, String netmask,String gateway, String dns1, String dns2) {if (context == null || (!"STATIC".equals(mode) && !"DHCP".equals(mode))) {Log.d(TAG, " setWifiStaticIP failed, param incorrect context=" + context + ", mode=" + mode);return false;}try {WifiManager wifiManager = ((WifiManager) context.getSystemService(Context.WIFI_SERVICE));if ("DHCP".equals(mode)) {IpConfiguration dhcpConfiguration = new IpConfiguration(IpConfiguration.IpAssignment.DHCP,IpConfiguration.ProxySettings.NONE, null, null);dhcpConfiguration.setIpAssignment(IpConfiguration.IpAssignment.DHCP);WifiConfiguration wifiConfiguration = getCurrentConfig();if (wifiConfiguration != null) {wifiConfiguration.setIpConfiguration(dhcpConfiguration);// current assignment is DHCP OR STATICString assignMent = wifiConfiguration.getIpConfiguration().ipAssignment.name();Log.d(TAG, " setWifiStaticIP assignMent=" + assignMent + ", mode=" + mode);wifiManager.setWifiApConfiguration(wifiConfiguration);// update networkwifiManager.updateNetwork(wifiConfiguration);// reconnectint netId = wifiManager.addNetwork(wifiConfiguration);wifiManager.disableNetwork(netId);wifiManager.enableNetwork(netId, true);Log.i(TAG, " setWifiStaticIP dhcp set success");return true;} else {return false;}}// set static ip addressIpConfiguration ipConfiguration = getStaticIpConfiguration(ipAddress, netmask, gateway, dns1, dns2);if (ipConfiguration != null) {WifiConfiguration wifiConfiguration = getCurrentConfig();if (wifiConfiguration != null) {wifiConfiguration.setIpConfiguration(ipConfiguration);wifiManager.setWifiApConfiguration(wifiConfiguration);// update networkwifiManager.updateNetwork(wifiConfiguration);// reconnectint netId = wifiManager.addNetwork(wifiConfiguration);wifiManager.disableNetwork(netId);wifiManager.enableNetwork(netId, true);Log.i(TAG, "setWifiStaticIP set static ip success");return true;} else {return false;}} else {Log.w(TAG, "setWifiStaticIP set static ip failed");return false;}} catch (Exception e) {Log.e(TAG, "setWifiStaticIP e=" + e.getMessage());}return false;}/*** 获取当前网络配置信息*/public WifiConfiguration getCurrentConfig(){WifiManager mWifiManager = ((WifiManager) context.getSystemService(Context.WIFI_SERVICE));WifiInfo connectionInfo = mWifiManager.getConnectionInfo();  //得到连接的wifi网络WifiConfiguration wifiConfig = null;List<WifiConfiguration> configuredNetworks = mWifiManager.getConfiguredNetworks();for (WifiConfiguration conf : configuredNetworks) {if (conf.networkId == connectionInfo.getNetworkId()) {wifiConfig = conf;break;}}return wifiConfig;}

因为部分api在framework.jar中才有，所以需要导入framework.jar作为依赖，另外测试时app用了platform签名。

framework.jar可以在https://github.com/zzhceo/EthernetStaticIp获取。

在模块的build.gradle中加入依赖framework.jar方式如下：

dependencies {//... ...// framework.jar placed in app/libs directorycompileOnly files('libs/framework.jar')
}

部分参考：https://blog.csdn.net/ink_s/article/details/78720544

以太网静态、动态IP设置可参考我的另一篇文章：https://blog.csdn.net/zzhceo/article/details/99596435