How my android application will be notified whenever the internet connection will not be available?

Question

My requirement is that a piece of code should be triggered immediately whenever internet connection gets unavailable. Is there a way to do it in android?

yes its possible, what you have tried so far to check internet connection. — Paresh Mayani, Dec 23 '11 at 10:48
ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo ni = cm.getActiveNetworkInfo(); if (ni!=null && ni.isAvailable() && ni.isConnected()) { return true; } else { return false; } — Sush, Dec 23 '11 at 11:05

score 2 · Accepted Answer · edited May 23 '17 at 12:03

2

You need to use BroadCastReceiver see the following link

Checking the Networking Connectivity using BroadcastReceiver in Android

edited May 23 '17 at 12:03

Community

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answered Dec 23 '11 at 10:49

Sunil Kumar Sahoo

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score 1 · Answer 2 · answered Dec 23 '11 at 10:48

1

Look into the android SDK. http://developer.android.com/reference/android/telephony/PhoneStateListener.html you can use the PhoneState listener to look for data connection state changes

answered Dec 23 '11 at 10:48

Iggy Van Der Wielen

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Will this also check for internet connection through Wifi? – Sush Dec 23 '11 at 11:09
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no then you will have to look into the http://developer.android.com/reference/android/net/ConnectivityManager.html – Iggy Van Der Wielen Dec 23 '11 at 11:55

score 1 · Answer 3 · answered Dec 23 '11 at 10:54

Try this:

public static Boolean isOnline(Context context) {
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo netInfo = cm.getActiveNetworkInfo();
    if (netInfo != null && netInfo.isConnectedOrConnecting()) {
        return true;
    }
    return false;
}

the function will return false if there is no internet or working data connection ....

How my android application will be notified whenever the internet connection will not be available?

3 Answers3