Android N not sending android.net.conn.CONNECTIVITY_CHANGE broadcast?

Question

I have defined a receiver in a sandbox Android N application:

Answer 1

Use this code to register receiver in your Activity or in Application class

IntentFilter intentFilter = new IntentFilter(); 
intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTI‌​ON); 
registerReceiver(new NetworkConnectionReceiver(), intentFilter); 

Where NetworkConnectionReceiver is a class extended by BroadcastReceiver. Just add this class in your app and perform action in onReceive(Context context, Intent intent) method.

Note: If you register this receiver in an Activity, don't forget to unregister it.

Answer 2

Apps targeting Android N (Nougat) do not receive CONNECTIVITY_ACTION broadcasts, even if they have manifest entries to request notification of these events. Apps that are running can still listen for CONNECTIVITY_CHANGE on their main thread if they request notification with a BroadcastReceiver.

To see what changed in Android N (Nougat). Please refer below link. Android N Behaviour Changes

Answer 3

Meanwhile ConnectivityManager.CONNECTIVITY_ACTI‌​ON was deprecated:

@deprecated 
apps should use the more versatile {@link #requestNetwork},
{@link #registerNetworkCallback} or {@link #registerDefaultNetworkCallback}
functions instead for faster and more detailed updates about the network
changes they care about.

So registerDefaultNetworkCallback should be used:

ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
cm.registerDefaultNetworkCallback(new ConnectivityManager.NetworkCallback(){
    @Override
    public void onAvailable(Network network) {
        doOnNetworkConnected();
    }
});