Get SSID when WIFI is connected

Question

I m trying to get the SSID of the WIFI network when my android device is connected to WIFI   I ve registered a BroadcastReceiver listening for android net wifi supplicant CONNECTION CHANGE   I get the notification when WIFI is disconnected or reconnected  Unfortunately  I can t get the network s SSID   I m using the following code to find the SSID   WifiManager wifiManager    WifiManager  context getSystemService context WIFI SERVICE   WifiInfo wifiInfo   wifiManager getConnectionInfo    String ssid   wifiInfo getSSID      Instead of the SSID  I get the string  lt unknown ssid gt  back   These are the permissions in the manifest  I ve added ACCESS NETWORK STATE just to check  I don t actually need it    lt uses-permission android name  android permission INTERNET   gt   lt uses-permission android name  android permission ACCESS WIFI STATE   gt   lt uses-permission android name  android permission ACCESS NETWORK STATE   gt   lt uses-permission android name  android permission ACCESS FINE LOCATION   gt    Why does this happen  How can I get the actual SSID  Is the broadcast fired to early  before the connection is established  Is there another broadcast I should listen to  I m only interested in WIFI connections  not 3G connections   Update  I just checked  wifiInfo getBSSID   returns null

User · Answer

For me it only worked when I set the permission on the phone itself  settings - gt  app permissions - gt  location always on

User · Answer

Starting with Android 8 1  API 27   apps must be granted the ACCESS COARSE LOCATION  or ACCESS FINE LOCATION  permission in order to obtain results from WifiInfo getSSID   or WifiInfo getBSSID    Apps that target API 29 or higher  Android 10  must be granted ACCESS FINE LOCATION   This permission is also needed to obtain results from WifiManager getConnectionInfo   and WifiManager getScanResults   although it is not clear if this is new in 8 1 or was required previously   Source   BSSID SSID can be used to deduce location  so require the same location permissions for access to these WifiInfo fields requested using WifiManager getConnectionInfo   as for WifiManager getScanResults

User · Answer

I listen for WifiManager NETWORK STATE CHANGED ACTION in a broadcast receiver  if  WifiManager NETWORK STATE CHANGED ACTION equals  action             NetworkInfo netInfo   intent getParcelableExtra  WifiManager EXTRA NETWORK INFO           if  ConnectivityManager TYPE WIFI    netInfo getType         I check for netInfo isConnected     Then I am able to use  WifiManager wifiManager    WifiManager  getSystemService  Context WIFI SERVICE   WifiInfo info   wifiManager getConnectionInfo     String ssid    info getSSID      UPDATE  From android 8 0 onwards we wont be getting SSID of the connected network unless GPS is turned on

User · Answer

If you don t want to make Broadcast Receiver then simple try  WifiManager wifiManager    WifiManager  getSystemService Context WIFI SERVICE   WifiInfo wifiInfo   wifiInfo   wifiManager getConnectionInfo    if  wifiInfo getSupplicantState      SupplicantState COMPLETED        ssid   wifiInfo getSSID        Remember every time user disconnect or connect to new SSID or any wifi state change then you need to initialize WifiInfo i e wifiInfo   wifiManager getConnectionInfo

User · Answer

In Android 8 1 it is must to turned Location on to get SSID  if not you can get connection state but not SSID   WifiManager wifiManager    WifiManager  context getApplicationContext   getSystemService Context WIFI SERVICE   WifiInfo wifiInfo   null  if  wifiManager    null   wifiInfo   wifiManager getConnectionInfo     String ssid   null  if  wifiInfo    null   ssid   wifiInfo getSSID      you will get SSID  lt unknown ssid gt  if location turned off

User · Answer

Answer In Kotlin Give Permissions      lt uses-permission android name  android permission ACCESS NETWORK STATE    gt   lt uses-permission android name  android permission ACCESS WIFI STATE    gt   lt uses-permission android name  android permission CHANGE WIFI STATE    gt   lt uses-permission android name  android permission ACCESS FINE LOCATION    gt   lt uses-permission android name  android permission ACCESS COARSE LOCATION    gt      private fun getCurrentNetworkDetail         val connManager           context getSystemService Context CONNECTIVITY SERVICE  as ConnectivityManager     val networkInfo   connManager getNetworkInfo ConnectivityManager TYPE WIFI      if  networkInfo isConnected            val wifiManager               context getApplicationContext   getSystemService Context WIFI SERVICE  as WifiManager         val connectionInfo   wifiManager connectionInfo         if  connectionInfo    null  amp  amp   TextUtils isEmpty connectionInfo ssid                 Log e  ssid   connectionInfo ssid                      else          Log e  ssid    No Connection

User · Answer

This is a follow up to the answer given by  EricWoodruff    You could use netInfo s getExtraInfo   to get wifi SSID    if  WifiManager NETWORK STATE CHANGED ACTION equals  action         NetworkInfo netInfo   intent getParcelableExtra  WifiManager EXTRA NETWORK INFO       if  ConnectivityManager TYPE WIFI    netInfo getType               String ssid   info getExtraInfo           Log d TAG   WiFi SSID      ssid            If you are not using BroadcastReceiver check this answer to get SSID using Context  This is tested on Android Oreo 8 1 0

User · Answer

I found interesting solution to get SSID of currently connected Wifi AP  You simply need to use iterate WifiManager getConfiguredNetworks   and find configuration with specific WifiInfo getNetworkId    My example  in Broadcast receiver with action WifiManager NETWORK STATE CHANGED ACTION I m getting current connection state from intent    NetworkInfo nwInfo   intent getParcelableExtra WifiManager EXTRA NETWORK INFO   nwInfo getState     If NetworkInfo getState is equal to NetworkInfo State CONNECTED then i can get current WifiInfo object  WifiManager wifiManager    WifiManager  getSystemService  Context WIFI SERVICE   WifiInfo info   wifiManager getConnectionInfo       And after that   public String findSSIDForWifiInfo WifiManager manager  WifiInfo wifiInfo         List lt WifiConfiguration gt  listOfConfigurations   manager getConfiguredNetworks         for  int index   0  index  lt  listOfConfigurations size    index              WifiConfiguration configuration   listOfConfigurations get index           if  configuration networkId    wifiInfo getNetworkId                  return configuration SSID                       return null      And very important thing this method doesn t require Location nor Location  Permisions  In API29 Google redesigned Wifi API so this solution is outdated for Android 10

User · Answer

Android 9 SSID showing NULL values use this code     ConnectivityManager connManager    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE           NetworkInfo networkInfo   connManager getNetworkInfo ConnectivityManager TYPE WIFI           if  networkInfo isConnected                  WifiManager wifiManager    WifiManager  context getApplicationContext   getSystemService Context WIFI SERVICE               WifiInfo wifiInfo   wifiManager getConnectionInfo                wifiInfo getSSID                String name   networkInfo getExtraInfo                String ssid   wifiInfo getSSID                return ssid replaceAll

[android] Get SSID when WIFI is connected

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