How To Get Unique Id Of Wifi In Android?

I can get a name of WiFi using the code String ssid = wifiInfo.getSSID(), but you know many WiFi have the same name such as 'MyWiFi', I hope to get unique id of a WiFi, how can I d

Solution 1:

Try to use below network id.

getNetworkId()

used to identify the network when performing operations on the supplicant.

UPDATE YOUR CODE

WifiManagerwifiManager= (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
     WifiInfowifiInfo= wifiManager.getConnectionInfo();
     Stringssid= wifiInfo.getSSID();
     intnetworkid= wifiInfo.getNetworkId();
     Toast.makeText(context, "OK " + ssid, Toast.LENGTH_LONG).show();
     Toast.makeText(context, "Network ID  " + networkid, Toast.LENGTH_LONG).show();

Solution 2:

The unique id of any wifi added is NETWORK_ID[The ID number that the supplicant uses to identify this network configuration entry.].

how do i get network id?

if you have WifiConfiguration object you get get its network id

For more detial on apis look here

Solution 3:

You can use the BSSID as a unique identifier https://en.wikipedia.org/wiki/Service_set_(802.11_network)#Basic_service_set_identification_.28BSSID.29

WifiManagerwifiManager= (WifiManager)     this.getSystemService(Context.WIFI_SERVICE);
        WifiInfowifiInfo= wifiManager.getConnectionInfo();
        Stringssid= wifiInfo.getSSID();
        Toast.makeText(this, "Name is  " + ssid, Toast.LENGTH_SHORT).show();
        Stringnetworkid= wifiInfo.getBSSID();
        Toast.makeText(this, "Network ID  " + networkid,     Toast.LENGTH_SHORT).show();