Connected, no Internet in Android

user_10385596 0
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I have been trying to figure out how to deal with Android: Connected, No Internet condition whether you are connected using Wifi or Cellular Data.

Code:

public boolean checkForInternetConnectivity() {
        ConnectivityManager manager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
        if(manager != null) {            
            if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {  
                // Works when connected to the internet and when internet is available but the fails when no internet
                NetworkCapabilities networkCapabilities = manager.getNetworkCapabilities(manager.getActiveNetwork());                    
                return networkCapabilities != null && (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) || networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR));
            }else {               
                NetworkInfo netInfo = null;
                netInfo = manager.getActiveNetworkInfo();
                return netInfo!= null && netInfo.isConnected();
            }
        }
        return false;
}

I just want the above method to return true if the mobile is connected to the internet and internet is available and false if there is no interet or connectivity.

So my questions are - How do I deal with the 'No internet' condition? Is there a built-in method available for doing this? Or am I missing something in the mentioned code itself?

android
2 Answers

Replace this code.

public final boolean checkForInternetConnectivity() {
            ConnectivityManager cm = (ConnectivityManager) getSystemService("connectivity");
            NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
            if (activeNetwork != null) {
                if (activeNetwork.getType() == 1) {
                    return true;
                } else {
                    return activeNetwork.getType() == 0;
                }
            } else {
                return false;
            }
        }
    }

Add Permission this android.permission.ACCESS_NETWORK_STATE in the manifest file.

user_63151900

Make sure to add this line in your manifest:

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

while you will us this methode in a diffrenet activities I suggest to use a static method bette. add this code:

public static boolean isNetworkAvailable(Context context) {
            boolean HaveConnectWIFI = false;
            boolean HaveConnectMobile = false;

            ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(context.CONNECTIVITY_SERVICE);
            assert connectivityManager != null;
            NetworkInfo[] activeNetworkInfo = connectivityManager.getAllNetworkInfo();
            for (NetworkInfo ni : activeNetworkInfo) {
                if (ni.getTypeName().equalsIgnoreCase("WIFI"))
                    if (ni.isConnected())
                        HaveConnectWIFI = true;
                if (ni.getTypeName().equalsIgnoreCase("MOBILE"))
                    if (ni.isConnected())
                        HaveConnectMobile = true;
            }
            return HaveConnectMobile || HaveConnectWIFI;
        }
user_134991220
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