调用setIpWithTfiStaticIp()即可为连接好的wifi配置 静态Ip。支持Android4.0以上及以下的版本。(PS：以下的函数使用条件是：wifi是连接好的)

测试成功的

/**      * 设置静态ip地址的方法

*/

private boolean setIpWithTfiStaticIp() {

WifiManager wifiManager = (WifiManager) FactoryTestApp.context.getSystemService(Context.WIFI_SERVICE);

WifiConfiguration wifiConfig = null;

WifiInfo connectionInfo = wifiManager.

getConnectionInfo();  //得到连接的wifi网络 List configuredNetworks = wifiManager .getConfiguredNetworks(); for (WifiConfiguration conf : configuredNetworks) { if (conf.networkId == connectionInfo.getNetworkId()) { wifiConfig = conf; break; } } if (android.os.Build.VERSION.SDK_INT < 11) { // 如果是android2.x版本的话 ContentResolver ctRes = FactoryTestApp.context.getContentResolver(); android.provider.Settings.System.putInt(ctRes,  android.provider.Settings.System.WIFI_USE_STATIC_IP, 1); android.provider.Settings.System.putString(ctRes,  android.provider.Settings.System.WIFI_STATIC_IP,"192.168.0.202"); // android.provider.Settings.System.putString(ctRes, // android.provider.Settings.System.WIFI_STATIC_NETMASK, "255.255.255.0"); // android.provider.Settings.System.putString(ctRes, // android.provider.Settings.System.WIFI_STATIC_GATEWAY, "192.168.0.1"); // android.provider.Settings.System.putString(ctRes,  // android.provider.Settings.System.WIFI_STATIC_DNS1,"192.168.0.1"); // android.provider.Settings.System.putString(ctRes,  // android.provider.Settings.System.WIFI_STATIC_DNS2,"61.134.1.9"); return true; } else { // 如果是android3.x版本及以上的话 try { setIpAssignment("STATIC", wifiConfig); setIpAddress(InetAddress.getByName("192.168.3.102"), 24, wifiConfig); // setGateway(InetAddress.getByName("192.168.3.1"), wifiConfig); // setDNS(InetAddress.getByName("192.168.0.1"), wifiConfig); wifiManager.updateNetwork(wifiConfig); // apply the setting System.out.println("静态ip设置成功！"); return true; } catch (Exception e) { e.printStackTrace(); System.out.println("静态ip设置失败！"); return false; } }     }          private static void setIpAssignment(String assign, WifiConfiguration wifiConf) throws SecurityException, IllegalArgumentException, NoSuchFieldException, IllegalAccessException { setEnumField(wifiConf, assign, "ipAssignment"); } private static void setIpAddress(InetAddress addr, int prefixLength, WifiConfiguration wifiConf) throws SecurityException, IllegalArgumentException, NoSuchFieldException, IllegalAccessException, NoSuchMethodException, ClassNotFoundException, InstantiationException, InvocationTargetException { Object linkProperties = getField(wifiConf, "linkProperties"); if (linkProperties == null) return; Class> laClass = Class.forName("android.net.LinkAddress"); Constructor> laConstructor = laClass.getConstructor(new Class[] { InetAddress.class, int.class }); Object linkAddress = laConstructor.newInstance(addr, prefixLength); ArrayList mLinkAddresses = (ArrayList) getDeclaredField( linkProperties, "mLinkAddresses"); mLinkAddresses.clear(); mLinkAddresses.add(linkAddress); } private static Object getField(Object obj, String name) throws SecurityException, NoSuchFieldException,IllegalArgumentException, IllegalAccessException { Field f = obj.getClass().getField(name); Object out = f.get(obj); return out; } private static Object getDeclaredField(Object obj, String name) throws SecurityException, NoSuchFieldException,IllegalArgumentException, IllegalAccessException { Field f = obj.getClass().getDeclaredField(name); f.setAccessible(true); Object out = f.get(obj); return out; } @SuppressWarnings({"unchecked", "rawtypes" }) private static void setEnumField(Object obj, String value, String name) throws SecurityException, NoSuchFieldException,IllegalArgumentException, IllegalAccessException { Field f = obj.getClass().getField(name); f.set(obj, Enum.valueOf((Class)f.getType(), value)); } // private static void setGateway(InetAddress gateway,WifiConfiguration wifiConf)  // throws SecurityException, // IllegalArgumentException, NoSuchFieldException, // IllegalAccessException, ClassNotFoundException, // NoSuchMethodException, InstantiationException, // InvocationTargetException { // Object linkProperties = getField(wifiConf, "linkProperties"); // if (linkProperties == null) // return; // // if (android.os.Build.VERSION.SDK_INT >= 14) { // android4.x版本 // Class> routeInfoClass = Class.forName("android.net.RouteInfo"); // Constructor> routeInfoConstructor = routeInfoClass // .getConstructor(new Class[] { InetAddress.class }); // Object routeInfo = routeInfoConstructor.newInstance(gateway); // // ArrayList mRoutes = (ArrayList)getDeclaredField( // linkProperties, "mRoutes"); // mRoutes.clear(); // mRoutes.add(routeInfo); // } else { // android3.x版本 // ArrayList mGateways = (ArrayList) getDeclaredField( // linkProperties, "mGateways"); // mGateways.clear(); // mGateways.add(gateway); // } // } //     //    private static void setDNS(InetAddress dns, WifiConfiguration wifiConf) //     throws SecurityException, IllegalArgumentException, //     NoSuchFieldException, IllegalAccessException{ //     Object linkProperties = getField(wifiConf, "linkProperties"); //     if (linkProperties == null) //     return; //     ArrayList mDnses = (ArrayList)  //     getDeclaredField(linkProperties, "mDnses"); //     mDnses.clear(); // 清除原有DNS设置(如果只想增加，不想清除，词句可省略) //     mDnses.add(dns); //     //增加新的DNS //    }