I am trying to turn add a wifi network programmatically and to connect to that network.
My code works fine if the wi-fi is already turned on.
If wi-fi is off, what i see wifimanager.addtonetwork() fails and when i see the wifi settings for the phone, i can see the status as scanning
If i try to connect again it works fine.
Please see code below.
Please help
private int changeNetwork(NetworkSetting setting) {
// If the SSID is empty, throw an error and return
if (setting.getSsid() == null || setting.getSsid().length() == 0) {
return doError(R.string.wifi_ssid_missing);
}
// If the network type is invalid
if (setting.getNetworkType() == NetworkType.NETWORK_INVALID) {
return doError(R.string.wifi_type_incorrect);
}
// If the password is empty, this is an unencrypted network
if (setting.getPassword() == null
|| setting.getPassword().length() == 0
|| setting.getNetworkType() == null
|| setting.getNetworkType() == NetworkType.NETWORK_NOPASS) {
return changeNetworkUnEncrypted(setting);
}
if (setting.getNetworkType() == NetworkType.NETWORK_WPA) {
return changeNetworkWPA(setting);
} else {
return changeNetworkWEP(setting);
}
}
private int doError(int resource_string) {
statusView.setText(resource_string);
// Give up on the connection
wifiManager.disconnect();
if (networkId > 0) {
wifiManager.removeNetwork(networkId);
networkId = -1;
}
if (receiverRegistered) {
unregisterReceiver(wifiReceiver);
receiverRegistered = false;
}
return -1;
}
private WifiConfiguration changeNetworkCommon(NetworkSetting input) {
statusView.setText(R.string.wifi_creating_network);
Log.d(TAG, "Adding new configuration:
SSID: " + input.getSsid()
+ "
Type: " + input.getNetworkType());
WifiConfiguration config = new WifiConfiguration();
config.allowedAuthAlgorithms.clear();
config.allowedGroupCiphers.clear();
config.allowedKeyManagement.clear();
config.allowedPairwiseCiphers.clear();
config.allowedProtocols.clear();
// Android API insists that an ascii SSID must be quoted to be correctly
// handled.
config.SSID = NetworkUtil.convertToQuotedString(input.getSsid());
config.hiddenSSID = true;
return config;
}
private int requestNetworkChange(WifiConfiguration config) {
statusView.setText(R.string.wifi_changing_network);
return updateNetwork(config, false);
}
// Adding a WEP network
private int changeNetworkWEP(NetworkSetting input) {
WifiConfiguration config = changeNetworkCommon(input);
String pass = input.getPassword();
if (NetworkUtil.isHexWepKey(pass)) {
config.wepKeys[0] = pass;
} else {
config.wepKeys[0] = NetworkUtil.convertToQuotedString(pass);
}
config.allowedAuthAlgorithms
.set(WifiConfiguration.AuthAlgorithm.SHARED);
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;
return requestNetworkChange(config);
}
// Adding a WPA or WPA2 network
private int changeNetworkWPA(NetworkSetting input) {
WifiConfiguration config = changeNetworkCommon(input);
String pass = input.getPassword();
// Hex passwords that are 64 bits long are not to be quoted.
if (HEX_DIGITS_64.matcher(pass).matches()) {
Log.d(TAG, "A 64 bit hex password entered.");
config.preSharedKey = pass;
} else {
Log.d(TAG, "A normal password entered: I am quoting it.");
config.preSharedKey = NetworkUtil.convertToQuotedString(pass);
}
config.allowedAuthAlgorithms.set(WifiConfiguration.AuthAlgorithm.OPEN);
// For WPA
config.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
// For WPA2
config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
config.allowedProtocols.set(WifiConfiguration.Protocol.RSN);
return requestNetworkChange(config);
}
// Adding an open, unsecured network
private int changeNetworkUnEncrypted(NetworkSetting input) {
Log.d(TAG, "Empty password prompting a simple account setting");
WifiConfiguration config = changeNetworkCommon(input);
config.wepKeys[0] = "";
config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
config.wepTxKeyIndex = 0;
return requestNetworkChange(config);
}
/**
* If the given ssid name exists in the settings, then change its password
* to the one given here, and save
*
* @param ssid
*/
private WifiConfiguration findNetworkInExistingConfig(String ssid) {
List<WifiConfiguration> existingConfigs = wifiManager
.getConfiguredNetworks();
Log.i("Start comparing","Size "+existingConfigs.size() );
for (WifiConfiguration existingConfig : existingConfigs) {
Log.i("Compare with SSID", ssid + existingConfig.SSID);
if (existingConfig.SSID.equals(ssid)) {
Log.i("Compare success with SSID", ssid + existingConfig.SSID);
return existingConfig;
}
}
return null;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent intent = getIntent();
/* if (intent == null
|| !intent.getAction().equals(Intents.WifiConnect.ACTION)) {
finish();
return;
} */
String ssid = intent.getStringExtra("ssid");
String password = intent.getStringExtra("password");
String networkType = intent.getStringExtra("type");
setContentView(R.layout.network);
statusView = (TextView) findViewById(R.id.networkStatus);
NetworkType networkT;
if ("WPA".equals(networkType)) {
networkT = NetworkType.NETWORK_WPA;
} else if ("WEP".equals(networkType)) {
networkT = NetworkType.NETWORK_WEP;
} else if ("nopass".equals(networkType)) {
networkT = NetworkType.NETWORK_NOPASS;
} else {
networkT = NetworkType.NETWORK_INVALID;
}
// This is not available before onCreate
wifiManager = (WifiManager) this.getSystemService(WIFI_SERVICE);
// Start WiFi, otherwise nothing will work
wifiManager.setWifiEnabled(true);
// So we know when the network changes
wifiReceiver = new WifiReceiver(wifiManager, this, statusView, ssid);
// The order matters!
mWifiStateFilter = new IntentFilter(
WifiManager.WIFI_STATE_CHANGED_ACTION);
mWifiStateFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
mWifiStateFilter.addAction(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION);
mWifiStateFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
registerReceiver(wifiReceiver, mWifiStateFilter);
receiverRegistered = true;
if (password == null) {
password = "";
}
Log.d(TAG, "Adding new configuration:
SSID: " + ssid + "Type: "
+ networkT);
NetworkSetting setting = new NetworkSetting(ssid, password, networkT);
changeNetwork(setting);
}
@Override
public void onPause() {
super.onPause();
if (receiverRegistered) {
unregisterReceiver(wifiReceiver);
receiverRegistered = false;
}
}
@Override
public void onResume() {
super.onResume();
if (wifiReceiver != null && mWifiStateFilter != null
&& !receiverRegistered) {
registerReceiver(wifiReceiver, mWifiStateFilter);
receiverRegistered = true;
}
}
@Override
protected void onDestroy() {
if (wifiReceiver != null) {
if (receiverRegistered) {
unregisterReceiver(wifiReceiver);
receiverRegistered = false;
}
wifiReceiver = null;
}
super.onDestroy();
}
/**
* Update the network: either create a new network or modify an existing
* network
*
* @param config
* the new network configuration
* @param disableOthers
* true if other networks must be disabled
* @return network ID of the connected network.
*/
private int updateNetwork(WifiConfiguration config, boolean disableOthers) {
WifiConfiguration found = findNetworkInExistingConfig(config.SSID);
wifiManager.disconnect();
if (found == null) {
Log.i("WIFI","SSID NOT FOUND");
statusView.setText(R.string.wifi_creating_network);
} else {
statusView.setText(R.string.wifi_modifying_network);
Log.d(TAG, "Removing network " + found.networkId);
wifiManager.removeNetwork(found.networkId);
wifiManager.saveConfiguration();
}
networkId = wifiManager.addNetwork(config);
Log.d(TAG, "Inserted/Modified network " + networkId);
if (networkId < 0) {
wifiManager.setWifiEnabled(true);
networkId = wifiManager.addNetwork(config);
Log.d(TAG, "Again Inserted/Modified network " + networkId);
return FAILURE_NO_NETWORK_ID;
}
// Try to disable the current network and start a new one.
if (!wifiManager.enableNetwork(networkId, disableOthers)) {
networkId = FAILURE_NO_NETWORK_ID;
return FAILURE_NO_NETWORK_ID;
}
errorCount = 0;
wifiManager.reassociate();
return networkId;
}
Here is my working code : ( its different from my previous code )
package com.idg.project.utils;
import java.util.List;
import java.util.regex.Pattern;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.util.Log;
/**
* @author Vikram Aggarwal
* @author Sean Owen
*/
public final class WifiConfigManager {
private static final String TAG = WifiConfigManager.class.getSimpleName();
private static final Pattern HEX_DIGITS = Pattern.compile("[0-9A-Fa-f]+");
private WifiConfigManager() {
}
public static void configure(final WifiManager wifiManager,
final String ssid,
final String password,
final String networkTypeString) {
Runnable configureRunnable = new Runnable() {
public void run() {
// Start WiFi, otherwise nothing will work
if (!wifiManager.isWifiEnabled()) {
Log.i(TAG, "Enabling wi-fi...");
if (wifiManager.setWifiEnabled(true)) {
Log.i(TAG, "Wi-fi enabled");
} else {
Log.w(TAG, "Wi-fi could not be enabled!");
return;
}
// This happens very quickly, but need to wait for it to enable. A little busy wait?
int count = 0;
while (!wifiManager.isWifiEnabled()) {
if (count >= 10) {
Log.i(TAG, "Took too long to enable wi-fi, quitting");
return;
}
Log.i(TAG, "Still waiting for wi-fi to enable...");
try {
Thread.sleep(1000L);
} catch (InterruptedException ie) {
// continue
}
count++;
}
}
NetworkType networkType = NetworkType.forIntentValue(networkTypeString);
if (networkType == NetworkType.NO_PASSWORD) {
changeNetworkUnEncrypted(wifiManager, ssid);
} else {
if (pass
