Android check if network connection exists not always working

Asked May 22 '16 at 14:16

Active May 23 '16 at 18:19

Viewed 62 times

I copied that from another post:

public static boolean isOffline(Context context) {
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo netInfo = cm.getActiveNetworkInfo();
    return netInfo == null || !netInfo.isConnected(); // netInfo.isConnectedOrConnecting()
}

If the screen is on and I'm using the device it works correct. But sometimes if the device is sleeping it returns that the device is offline.

I have a broadcast wich calls the same method later - then it is working (during a bug it is currently right afterwards).

Any ideas?

edited May 23 '17 at 11:58

Community

asked May 22 '16 at 14:16

rala

Is your device MarshMellow? – Reaz Murshed May 23 '16 at 18:27
yes it is android 6.1 – rala May 24 '16 at 09:15
The network connection optimization is a new feature in MarshMellow. Your application should work in pre-marshmellow devices. – Reaz Murshed May 24 '16 at 10:49
unfortunately no - some testers reported me that it doesn't work either – rala May 24 '16 at 11:04

Android check if network connection exists not always working

0 Answers0