Wifi getSSID() returns null

Question

I use getSSID() to get the name of the wifi network as soon as a new connection is made. But sometimes I get null for that value. This is my code:

Permissions in manifest are correct, because, as I said, most of the times it works.

I use this filter for the broadcast receiver:

<action android:name="android.net.wifi.supplicant.CONNECTION_CHANGE" />

In the broadcast I do this:

if("android.net.wifi.supplicant.CONNECTION_CHANGE".equals(intent.getAction()))
{  boolean bConected = intent.getBooleanExtra(WifiManager.EXTRA_SUPPLICANT_CONNECTED, false);
   if(bConnected == true)
   {  WifiManager wifi = (WifiManager) Contexto.getSystemService(Context.WIFI_SERVICE);
      String MyName = wifi.getConnectionInfo().getSSID();
      Sometimes MyName is null here even if Wifi is connected correctly
   }
}

Any ideas?

Answer 1

I use similar code regularly and I have never received null when connected.

Here is my code:

WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiInfo info = wifi.getConnectionInfo();
String myName = info.getSSID();

Therefore, I propose that you should wait 400 to 1000ms or so after receipt of the CONNECTION_CHANGE broadcast before requesting the information.

---

Here is one example that will implement the delay:

final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
    @Override
    public void run() {
        WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
        WifiInfo info = wifi.getConnectionInfo();
        String myName = info.getSSID();
    }
}, 1000);