Send latitude and Longitude from the BoadcastReceiver when the internet connection is avialable

I want to send JSON String

{
    "latitude": 53.86898504,
    "longitude": 10.66561187,
    "time": "25.04.2015 11:37:11",
    "route": 4
} 

to the server every 60 seconds so when I try to send the JSON string from my internet connection BroadcastReceiver the JSON string is null there but when I send the data from onLocationChanged method I am getting the string in the PostData class but I want to send the data just when the internet connection is avialable if the internet is not avialable i will store the string for short time. How can I implement it to get the JSONString in the CONNECTIVITY_ACTION BroadcastReceiver?

I appreciate any help.

MainActivity class:

public class MainActivity extends ActionBarActivity {

Location location;
LocationManager locationManager;
String jSONString;

    TextView textJSON;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        textJSON = (TextView) findViewById(R.id.textJSON);


        LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        LocationListener ll = new myLocationListener();
        lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 10000, 0, ll);


    }

    private class BroadcastReceiverListener extends BroadcastReceiver {
        @Override
        public void onReceive(Context context, Intent intent) {
            if (intent.getAction().equals(
                    android.net.wifi.WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)) {
                     //code to get the strongest wifi access point in the JSON string the routes's value.
            }

            else if (intent.getAction().equals(
                    android.net.ConnectivityManager.CONNECTIVITY_ACTION)) {

                ConnectivityManager connectivityManager = (ConnectivityManager) context
                        .getSystemService(Context.CONNECTIVITY_SERVICE);

                NetworkInfo netInfo = connectivityManager
                        .getActiveNetworkInfo();

                boolean isConnected = netInfo != null
                        && netInfo.isConnectedOrConnecting();
                if (isConnected) {
                    Toast.makeText(context,
                            "The device is connected to the internet ",
                            Toast.LENGTH_SHORT).show();
                if (location == null) {

                    Location locat = locationManager
                            .getLastKnownLocation(LocationManager.GPS_PROVIDER);
                    if (locat == null) {

                        LocationListener locLis = new myLocationListener();
                        LocationManager locMan = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
                        Criteria criteria = new Criteria();
                        Looper myLooper = Looper.myLooper();

                        locMan.requestSingleUpdate(criteria, locLis,
                                myLooper);

                    } else {
                        System.out.println("locat is not null");
                    }

                } else {
                    PostData sender = new PostData();
                    sender.timer(jSONString);
                    textJSON.setText(jSONString);
                }


                } else {
                    Toast.makeText(context,
                            "Please connect the device to the internet.",
                            Toast.LENGTH_SHORT).show();
                }

            }
        }

    }

    class myLocationListener implements LocationListener {

        @Override
        public void onLocationChanged(Location location) {

            if (location != null) {
                double pLong = location.getLongitude();
                double pLat = location.getLatitude();
                ...
                String time = sdf.format(location.getTime());

                jSONString = convertToJSON(pLong, pLat, time);
                System.out.println("The output of onLocationChanged: "+ jSONString);

                //The code works fine here. JSON string has its values here but in broadcastReceiver JSON string has null.
//              PostData sender = new PostData();
//              sender.timer(jSONString);
//              textJSON.setText(jSONString);



            }
        }
    }
}