sendbroadcast method does not work when network is not available

Question

I have a function which I need to run when my app gets some data from remote server. HTTPRequest requires some time to execute, so when I get necessary data I send broadcast

Intent i = new Intent();
i.setAction(Receiver.BROADCAST_INITIALIZED);
activity.sendBroadcast(i);

My receiver:

public class Receiver extends BroadcastReceiver{

public static final String BROADCAST_INITIALIZED = "UNIQUE_ID";

public Receiver() {}

@Override
public void onReceive(Context context, Intent intent) {
    if (intent.getAction().equals(BROADCAST_INITIALIZED)) {

        Log.i("TAG", "RECEIVER BROADCAST_INITIALIZED");

        context.unregisterReceiver(this);           
    }
}     
}

Everything works as expected until I disable mobile data and WiFi. In this case activity.sendBroadcast(i); does not trigger. I wonder why? I use simple function to check connection:

static boolean isNetworkAvailable(final Context context) {
    final ConnectivityManager connectivityManager = ((ConnectivityManager) context
            .getSystemService(Context.CONNECTIVITY_SERVICE));
    return connectivityManager.getActiveNetworkInfo() != null
            && connectivityManager.getActiveNetworkInfo().isConnected();
}

and place it in timer (timer.scheduleAtFixedRate). When network is becoming available I execute HTTPRequest and get data after that I send broadcast and even then it doen't work! Does sendbroadcast function work only when network is available?

UPDATE I found out the problem. It was my mistake. When I register my receivers I check network availability too and if it is not available I just skip registration.

if(!Utils.isNetworkAvailable(activity)) return; //The root of my problem!!!
    Receiver receiver = new Receiver(new Callable<Void>() {
        @Override
        public Void call() throws Exception {                   
            func.call();
            return null;
        }
    });
    activity.registerReceiver(receiver, new IntentFilter(Receiver.BROADCAST_INITIALIZED));

you check https://stackoverflow.com/a/15700728/5773037 it ll be also Helps you — Nikunj Paradva, Mar 05 '18 at 16:15
@NikunjParadva, The Intent filter starts the broadcast receiver when the connection changes. This is not suitable for me. I need to send the broadcast right after receiving the data from the server. — Nolesh, Mar 05 '18 at 16:29
Which Method or Library You used for Sending Data To server? — Nikunj Paradva, Mar 05 '18 at 16:31
@NikunjParadva, I use `HttpURLConnection`. It all works great until I disable network! The problem in `sendbroadcast` method. — Nolesh, Mar 05 '18 at 16:33
put the send Brodcast Receiver Code to the success Callback or you can use Retrofit 2 for Better CallBack. and use your Broadcast Receiver Their — Nikunj Paradva, Mar 05 '18 at 16:37

sendbroadcast method does not work when network is not available

0 Answers0