java android detected internet

boolean haveNetworkConnection(android.content.Context context) {
        boolean haveConnectedWifi = false;
        boolean haveConnectedMobile = false;
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(CONNECTIVITY_SERVICE);
         assert cm != null;
         NetworkInfo[] netInfo = cm.getAllNetworkInfo();
        for (NetworkInfo ni : netInfo) {
            if (ni.getTypeName().equalsIgnoreCase("WIFI"))
                if (ni.isConnected())
                    haveConnectedWifi = true;
            if (ni.getTypeName().equalsIgnoreCase("MOBILE"))
                if (ni.isConnected())
                    haveConnectedMobile = true;
        }
        return haveConnectedWifi || haveConnectedMobile;
    }

## usage
if(!haveNetworkConnection(getApplicationContext())) {
   Toast.makeText(getApplicationContext(), "No internet connection", Toast.LENGTH_SHORT).show();
}else{
	Toast.makeText(getApplicationContext(), "Internet available", Toast.LENGTH_SHORT).show();
}