WiFi Connectivity State Monitoring

In order to get the WiFi State changes, need to register a broadcast receiver. I registered a broadcast receiver in the Service like below and it all worked very well.

public int onStartCommand(Intent intent, int flags, int startId)

{

    Log.v(LOG_TAG,"Network connection sensor is starting");

    //start the wifi sensor right now

    mWifiReceiver = new WifiReceiver();

    IntentFilter mIntentFilter = new IntentFilter();

    mIntentFilter.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION);

    mIntentFilter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);

    mIntentFilter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);

    registerReceiver(mWifiReceiver, mIntentFilter);

    return START_REDELIVER_INTENT;

}

private class WifiReceiver extends BroadcastReceiver {

    @Override

    public void onReceive(Context context, Intent intent) {

        String action = intent.getAction();

        Log.v("WifiReceiver", "onReceive() is calleld with " + intent);

        if (action.equals(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)) {

            notifyScanResult();

        } else if (action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) {

            mWifiNetworkInfo =

            (NetworkInfo) intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);

            Log.v(LOG_TAG, "mWifiNetworkInfo: " + mWifiNetworkInfo.toString());

            if (mWifiNetworkInfo.getState() == NetworkInfo.State.CONNECTED) {

                mBssid = intent.getStringExtra(WifiManager.EXTRA_BSSID);

                Log.v(LOG_TAG,"Connected SSID is :"+mBssid);

                WifiManager wifiManager = (WifiManager) getSystemService (Context.WIFI_SERVICE);

                WifiInfo info = wifiManager.getConnectionInfo ();

                String bssid2 = info.getBSSID();

                Log.v(LOG_TAG,"connected SSID "+info.getSSID());

                Log.v(LOG_TAG,"Connected SSID bssid2 :"+bssid2);

                AppUtils.infoLog("Connected SSID:"+info.getSSID()+":BSSID :"+bssid2+":bSSID :"+mBssid);

                notifyWifiState();

            } else if (action.equals(WifiManager.WIFI_STATE_CHANGED_ACTION)) {

                mWifiState = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE,

                                                WifiManager.WIFI_STATE_UNKNOWN);

                notifyWifiState();

            }

            else {

                return;

            }

        }

    }

References:

http://alvinalexander.com/java/jwarehouse/android/core/tests/ConnectivityManagerTest/src/com/android/connectivitymanagertest/ConnectivityManagerTestActivity.java.shtml