Android N not sending android.net.conn.CONNECTIVITY_CHANGE broadcast?
Solution 1
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
Solution 2
Use this code to register receiver in your Activity
or in Application
class
IntentFilter intentFilter = new IntentFilter();
intentFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
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.
Solution 3
Meanwhile ConnectivityManager.CONNECTIVITY_ACTION
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();
}
});
DanMD
Updated on June 02, 2022Comments
-
DanMD about 2 years
I have defined a receiver in a sandbox Android N application:
<receiver android:exported="true" android:name="com.sandboxapplication.NetworkReceiver"> <intent-filter> <action android:name="android.net.conn.CONNECTIVITY_CHANGE" /> </intent-filter> </receiver>
It's rather simple:
public class NetworkReceiver extends BroadcastReceiver { private static final String TAG = NetworkReceiver.class.getName(); @Override public void onReceive(Context context, Intent intent) { Log.i(TAG, "Received Network Change event."); } }
This receiver is working fine if in my build.gradle file my targetSdkVersion is 23. However, if I set my targetSdkVersion to 24, the receiver never receives anything. In fact if I place a debug break point in my receiver Android Studio gives me the visual indication that it looks like the class is never even loaded into memory.
Did I miss something very basic in the Android N documentation? Is there a new way to detect connectivity change events?