gistfile1.java

String networkSSID = "test";


WifiConfiguration conf = new WifiConfiguration();
conf.SSID = "\"" + networkSSID + "\"";   
conf.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);

WifiManager wifiManager = (WifiManager)context.getSystemService(Context.WIFI_SERVICE); 
wifiManager.addNetwork(conf);

List<WifiConfiguration> list = wifiManager.getConfiguredNetworks();
for( WifiConfiguration i : list ) {
    if(i.SSID != null && i.SSID.equals("\"" + networkSSID + "\"")) {
         wifiManager.disconnect();
         wifiManager.enableNetwork(i.networkId, true);
         wifiManager.reconnect();               

         break;
    }           
 }

Hi,
I referred your comment on
http://stackoverflow.com/questions/8818290/how-do-i-connect-to-a-specific-wi-fi-network-in-android-programmatically
This is not working. reconnect() returns true but it doesn't work.