I have written below apis for proxy in android via reflection :
/**
* This api is used for setting IP And Proxy Setting using below
* supporting methods
*
* @param wifiSetting
* @param wifiConf
*/
public static void setWifiSettings(WifiSetting wifiSetting,
WifiConfiguration wifiConf) {
// check if ip setting is static for custom ip setting
// configration
if ("STATIC".equals(wifiSetting.getIpSetting())) {
setIpSettings(wifiSetting, wifiConf);
}
// if proxy is enabled set its custom proxy settings
if (wifiSetting.getIsProxyEnabled() == true) {
setWifiProxySettings(wifiSetting, wifiConf);
}
}
/**
* This api is used for setting IP
*
* @param wifiSetting
* @param wifiConf
*/
private static void setIpSettings(WifiSetting wifiSetting,
WifiConfiguration wifiConf) {
try {
setEnumField(wifiConf, "STATIC", "ipAssignment");
setIpAddress(wifiSetting.getIpAddress(),
wifiSetting.getNetworkPrefixLength(), wifiConf);
setGateway(wifiSetting.getGateway(), wifiConf);
setDNS(wifiSetting, wifiConf);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* This api is used for setting IpAddress in wifi settings
*
* @param ipAddres
* @param prefixLength
*/
private static void setIpAddress(String ipAddress,
int networkPrefixLength, WifiConfiguration wifiConf)
throws SecurityException, IllegalArgumentException,
NoSuchFieldException, IllegalAccessException,
NoSuchMethodException, ClassNotFoundException,
InstantiationException, InvocationTargetException {
try {
if (TextUtils.isEmpty(ipAddress)) {
throw new IllegalArgumentException(
"Required argument can not be blank.");
}
InetAddress inetAddr = null;
Class networkUtils = Class.forName("android.net.NetworkUtils");
Method numericToInetAddress = networkUtils.getDeclaredMethod(
"numericToInetAddress", ipAddress.getClass());
inetAddr = (InetAddress) numericToInetAddress.invoke(null,
ipAddress);
if (networkPrefixLength < 0 || networkPrefixLength > 32) {
throw new IllegalArgumentException(
"invalid networkPrefixLength parameter");
}
Object linkProperties = getFieldValue(wifiConf.getClass(),
wifiConf, "linkProperties");
if (linkProperties == null) {
throw new IllegalArgumentException(
"Required argument can not be blank.");
}
Class<?> laClass = Class.forName("android.net.LinkAddress");
Constructor<?> laConstructor = laClass
.getConstructor(new Class[] { InetAddress.class,
int.class });
Object linkAddress = laConstructor.newInstance(inetAddr,
networkPrefixLength);
Class<?> setIpAddress = Class
.forName("android.net.LinkProperties");
Boolean result = (Boolean) invokeDeclaredMethod(setIpAddress,
linkProperties, "addLinkAddress",
new Class[] { laClass }, new Object[] { linkAddress });
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* This api is used for setting gateway in wifiConfigration
*
* @param gateway
* @param wifiConf
*/
private static void setGateway(String gateway,
WifiConfiguration wifiConf) throws SecurityException,
IllegalArgumentException, NoSuchFieldException,
IllegalAccessException, ClassNotFoundException,
NoSuchMethodException, InstantiationException,
InvocationTargetException {
try {
if (TextUtils.isEmpty(gateway)) {
throw new IllegalArgumentException(
"Required argument can not be blank.");
}
InetAddress inetAddr = null;
Class networkUtils = Class.forName("android.net.NetworkUtils");
Method numericToInetAddress = networkUtils.getDeclaredMethod(
"numericToInetAddress", gateway.getClass());
inetAddr = (InetAddress) numericToInetAddress.invoke(null,
gateway);
Object linkProperties = getFieldValue(wifiConf.getClass(),
wifiConf, "linkProperties");
if (linkProperties == null) {
throw new IllegalArgumentException(
"Required argument can not be blank.");
}
Class routeInfoClass = Class.forName("android.net.RouteInfo");
Constructor routeInfoConstructor = routeInfoClass
.getConstructor(new Class[] { InetAddress.class });
Object routeInfo = routeInfoConstructor.newInstance(inetAddr);
Class<?> linkPropertiesClass = Class
.forName("android.net.LinkProperties");
Boolean result = (Boolean) invokeDeclaredMethod(
linkPropertiesClass, linkProperties, "addRoute",
new Class[] { routeInfoClass },
new Object[] { routeInfo });
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* This api is used for setting DNS in wifiConfigration
*
* @param dns
* @param wifiConf
* @throws NoSuchMethodException
* @throws InvocationTargetException
*/
private static void setDNS(WifiSetting wifiSettings,
WifiConfiguration wifiConf) throws SecurityException,
IllegalArgumentException, NoSuchFieldException,
IllegalAccessException, NoSuchMethodException,
InvocationTargetException {
try {
String dns1 = wifiSettings.getDns1();
String dns2 = wifiSettings.getDns2();
if (TextUtils.isEmpty(dns1) && TextUtils.isEmpty(dns2)) {
throw new IllegalArgumentException(
"Required argument can not be blank.");
}
Class dnsInfo = Class.forName("android.net.NetworkUtils");
Method setHttpProxy = dnsInfo.getDeclaredMethod(
"numericToInetAddress", String.class);
InetAddress inetAddressDns1 = (InetAddress) setHttpProxy
.invoke(null, dns1);
InetAddress inetAddressDns2 = (InetAddress) setHttpProxy
.invoke(null, dns2);
Object linkProperties = getFieldValue(wifiConf.getClass(),
wifiConf, "linkProperties");
if (linkProperties == null) {
throw new IllegalArgumentException(
"Required argument can not be blank.");
}
Class<?> linkPropertiesClass = Class
.forName("android.net.LinkProperties");
Class<?> inetAddressClass = Class
.forName("java.net.InetAddress");
invokeDeclaredMethod(linkPropertiesClass, linkProperties,
"addDns", new Class[] { inetAddressClass },
new Object[] { inetAddressDns1 });
invokeDeclaredMethod(linkPropertiesClass, linkProperties,
"addDns", new Class[] { inetAddressClass },
new Object[] { inetAddressDns2 });
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* This api is used for setting Proxy in wifiConfigration
*
* @param proxyHostName
* @param proxyPort
* @param proxyExceptions
* @param config
*/
private static void setWifiProxySettings(WifiSetting wifiSettings,
WifiConfiguration config) {
try {
if (null == config) {
throw new IllegalArgumentException(
"Required argument can not be blank.");
}
// get the link properties from the wifi configuration
Object linkProperties = getFieldValue(config.getClass(),
config, "linkProperties");
if (null == linkProperties) {
throw new IllegalArgumentException(
"Required argument can not be blank.");
}
// get the setHttpProxy method for LinkProperties
Class proxyPropertiesClass = Class
.forName("android.net.ProxyProperties");
Class[] setHttpProxyParams = new Class[1];
setHttpProxyParams[0] = proxyPropertiesClass;
Class lpClass = Class.forName("android.net.LinkProperties");
Method setHttpProxy = lpClass.getDeclaredMethod("setHttpProxy",
setHttpProxyParams);
setHttpProxy.setAccessible(true);
// get ProxyProperties constructor
Class[] proxyPropertiesCtorParamTypes = new Class[3];
proxyPropertiesCtorParamTypes[0] = String.class;
proxyPropertiesCtorParamTypes[1] = int.class;
proxyPropertiesCtorParamTypes[2] = String.class;
Constructor proxyPropertiesCtor = proxyPropertiesClass
.getConstructor(proxyPropertiesCtorParamTypes);
// create the parameters for the constructor
Object[] proxyPropertiesCtorParams = new Object[3];
proxyPropertiesCtorParams[0] = wifiSettings.getProxyHostName();
proxyPropertiesCtorParams[1] = wifiSettings.getProxyPort();
proxyPropertiesCtorParams[2] = wifiSettings
.getProxyExceptions();
// create a new object using the params
Object proxySettings = proxyPropertiesCtor
.newInstance(proxyPropertiesCtorParams);
// pass the new object to setHttpProxy
Object[] params = new Object[1];
params[0] = proxySettings;
setHttpProxy.invoke(linkProperties, params);
setEnumField(config, "STATIC", "proxySettings");
} catch (Exception e) {
e.printStackTrace();
}
}
public static Object invokeDeclaredMethod(Class<?> clazz, Object object,
String methodName, Class<?>[] args, Object[] argsValue)
throws SecurityException, NoSuchMethodException,
IllegalArgumentException, IllegalAccessException,
InvocationTargetException, RemoteException {
LogUtil.d(TAG, "Invoking declared method " + clazz.getSimpleName()
+ "." + methodName);
Method privateMethod = clazz.getDeclaredMethod(methodName, args);
privateMethod.setAccessible(true);
Object result = privateMethod.invoke(object, argsValue);
return result;
}
private static void setEnumField(Object object, String value, String name)
throws SecurityException, NoSuchFieldException,
IllegalArgumentException, IllegalAccessException {
Field f = object.getClass().getField(name);
f.set(object, Enum.valueOf((Class<Enum>) f.getType(), value));
}
public static Object getFieldValue(Class<?> clazz, Object object,
String fieldName) {
if (clazz == null || fieldName == null) {
throw new IllegalArgumentException(
"Required argument can not be blank.");
}
Object result = null;
try {
Field f = clazz.getField(fieldName);
f.setAccessible(true);
result = f.get(object);
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e.getMessage());
}
return result;
}
EDIT : API FOR LOLLIPOP [the above api for proxy and ip wont work in latest Andriod L ]
if (Build.VERSION.SDK_INT == Build.VERSION_CODES.LOLLIPOP) {
// Implementation for Proxy setting for LOLLIPOP
try {
URL proxyUrl = new URL(
addNetworkProxyProperties.getHttpProxyUri());
String host = proxyUrl.getHost();
int portStr = proxyUrl.getPort();
String exclusionList = addNetworkProxyProperties
.getExceptions();
Constructor<ProxyInfo> constructor = ProxyInfo.class
.getConstructor(new Class[] { String.class, int.class,
String.class });
ProxyInfo mHttpProxy = constructor.newInstance(new Object[] {
host, portStr, exclusionList });
Class ipConfigClass = Class
.forName("android.net.IpConfiguration");
Object ipConfigObject = ipConfigClass.newInstance();
Method setHttpProxy = ipConfigClass.getDeclaredMethod(
"setHttpProxy", ProxyInfo.class);
setHttpProxy.setAccessible(true);
setHttpProxy.invoke(ipConfigObject, mHttpProxy);
Method getHttpProxySettings = ipConfigClass
.getDeclaredMethod("getProxySettings");
getHttpProxySettings.setAccessible(true);
Method setProxy = config.getClass().getDeclaredMethod(
"setProxy",
getHttpProxySettings.invoke(ipConfigObject).getClass(),
ProxyInfo.class);
setProxy.setAccessible(true);
setEnumField(ipConfigObject, "STATIC", "proxySettings");
setProxy.invoke(config,
getHttpProxySettings.invoke(ipConfigObject), mHttpProxy);
} catch (Exception e) {
/*
* Excepted exceptions may be SecurityException,
* IllegalArgumentException, IllegalAccessException,
* InvocationTargetException, NoSuchMethodException,
* InstantiationException, ClassNotFoundException,
* NoSuchFieldException, MalformedURLException
*/
e.printStackTrace();
}
}
