Thanks again Kostya, I have downloaded your app and had a look, its very nice, the widget will come in very handy for my testing!
I was aware of the "known" versus as is quotes. My problem is for my app to work I need it to scan for AP's when the device is on the move. So it should scan, find a new AP that has the highest RSSI in the area and connect to that. The problem is I can only connect to a "known" or already configured AP and not one resulting from a scan. So would I be correct in saying that I need to do the following? Scan Get the highest RSSI Compare the SSID of this AP to the Wifi Config list If its in the Wifi config list then connect If its not then add a new access point (As a configured AP) Get the id of the newly added AP and connect On Fri, May 14, 2010 at 1:47 PM, Kostya Vasilyev <kmans...@gmail.com> wrote: > Donal, > > I think you are not matching the SSIDs of known and live networks > correctly. > > The SSIDs in the "known" list are enclosed in double quotes: > > > http://developer.android.com/reference/android/net/wifi/WifiConfiguration.html#SSID > > The SSIDs in the live scan result list are "as is", without the quotes. > > Your code needs to take this into consideration when matching the networks > between the two lists. > > BTW, feel free to download and try my WiFi management tool, I think it > should make it easier to see what's going on. See the link in my signature > below. > > -- > Kostya Vasilyev ~ WiFi Manager + pretty widget ~ > http://kmansoft.wordpress.com/sw > > > 14.05.2010 14:33, Donal Rafferty пишет: > > Thanks for that Kostya > > I have come across a bit of a problem though. > > After a scan there are 11 AP's found and all 11 show up in the list in the > Wifi settings on the device. > > But when I use > getConfiguredNetworks<http://developer.android.com/reference/android/net/wifi/WifiManager.html#getConfiguredNetworks>() > it only returns 4 configured networks. > > This happens despite the 11 AP's showing up in the settings after a scan. > > So the majority of the time when I compared the AP with the best signal's > SSID with the SSID's in the Configured Network list the majority of the time > no matching SSID is found. > > In that case I try to add a new network but this ends up creating > duplicates of the AP in the settings list. > > On Thu, May 13, 2010 at 5:24 PM, Kostya Vasilyev <kmans...@gmail.com>wrote: > >> Hi, >> >> 1. Regarding duplicates. Android maintains a list of "known" networks - >> for each, it stores the SSID, encryption configuration, along with the >> password, if necessary. Each known network also has a unique numeric ID. >> >> You can only connect to networks on this "known" list, because, as you >> correctly figured out, connecting to a network is done by its id. >> >> However, it's not necessary to add the network to this list if it's >> already been added (by Android or by your application). >> >> You can get the list of known networks from the WifiManager: >> >> >> http://developer.android.com/reference/android/net/wifi/WifiManager.html#getConfiguredNetworks >> () >> >> You can match these networks to your live scan results using their SSIDs. >> If the network is already in the known list, just use its numeric id. If >> not, you get the numeric ID back from addNetwork(). >> >> 2. Once you have the numeric ID, call enableNetwork(networkId, true) to >> connect. The second parameter means "disconnect from others", not "forget >> all other network" as its name might seem to imply. >> >> -- Kostya Vasilyev >> >> >> 2010/5/13 draf...@gmail.com <draf...@gmail.com> >> >>> I am currently trying to write a class in Android that will Scan for >>> access points, calculate which access point has the best signal and >>> then connect to that access point. >>> >>> >>> So the application will be able to scan on the move and attach to new >>> access points on the go. >>> >>> I have the scanning and calculation of the best signal working. >>> >>> But when it comes to attaching to the best access point I am having >>> trouble. >>> >>> It appears that enableNetwork(netid, othersTrueFalse) is the only >>> method for attaching to an Access point but this causes problems as >>> from my Scan Results I am not able to get the id of the access point >>> with the strongest signal. >>> >>> This is my code: >>> >>> --- >>> >>> public void doWifiScan(){ >>> >>> scanTask = new TimerTask() { >>> public void run() { >>> handler.post(new Runnable() { >>> public void run() { >>> sResults = wifiManager.scan(getBaseContext()); >>> if(sResults!=null) >>> Log.d("TIMER", "sResults count" + sResults.size()); >>> ScanResult scan = >>> wifiManager.calculateBestAP(sResults); >>> wifiManager.addNewAccessPoint(scan); >>> } >>> }); >>> }}; >>> >>> t.schedule(scanTask, 3000, 30000); >>> } >>> >>> >>> --- >>> >>> public ScanResult calculateBestAP(List<ScanResult> sResults){ >>> >>> ScanResult bestSignal = null; >>> for (ScanResult result : sResults) { >>> if (bestSignal == null >>> || >>> WifiManager.compareSignalLevel(bestSignal.level, >>> result.level) < 0) >>> bestSignal = result; >>> } >>> >>> String message = String.format("%s networks found. %s >>> is the >>> strongest. %s is the bsid", >>> sResults.size(), bestSignal.SSID, >>> bestSignal.BSSID); >>> >>> Log.d("sResult", message); >>> return bestSignal; >>> } >>> >>> >>> --- >>> >>> public void addNewAccessPoint(ScanResult scanResult){ >>> >>> WifiConfiguration wc = new WifiConfiguration(); >>> wc.SSID = '\"' + scanResult.SSID + '\"'; >>> //wc.preSharedKey = "\"password\""; >>> wc.hiddenSSID = true; >>> wc.status = WifiConfiguration.Status.ENABLED; >>> >>> wc.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP); >>> >>> wc.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP); >>> >>> wc.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK); >>> >>> wc.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.TKIP); >>> >>> wc.allowedPairwiseCiphers.set(WifiConfiguration.PairwiseCipher.CCMP); >>> wc.allowedProtocols.set(WifiConfiguration.Protocol.RSN); >>> int res = mainWifi.addNetwork(wc); >>> Log.d("WifiPreference", "add Network returned " + res ); >>> boolean b = mainWifi.enableNetwork(res, false); >>> Log.d("WifiPreference", "enableNetwork returned " + b ); >>> >>> } >>> >>> >>> --- >>> >>> When I try to use addNewAccessPoint(ScanResult scanResult) it just >>> adds another AP to the list in the settings application with the same >>> name as the one with the best signal, so I end up with loads of >>> duplicates and not actually attaching to them. >>> >>> Can anyone point me in the direction of a better solution? >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Android Developers" group. >>> To post to this group, send email to android-developers@googlegroups.com >>> To unsubscribe from this group, send email to >>> android-developers+unsubscr...@googlegroups.com<android-developers%2bunsubscr...@googlegroups.com> >>> For more options, visit this group at >>> http://groups.google.com/group/android-developers?hl=en >> >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Android Developers" group. >> To post to this group, send email to android-developers@googlegroups.com >> To unsubscribe from this group, send email to >> android-developers+unsubscr...@googlegroups.com<android-developers%2bunsubscr...@googlegroups.com> >> For more options, visit this group at >> http://groups.google.com/group/android-developers?hl=en > > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > > > > -- > Kostya Vasilyev ~ WiFi Manager + pretty widget ~ > http://kmansoft.wordpress.com/sw > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com<android-developers%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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