Display an alert when internet connection not available in android application

Question

In my application data comes from internet and I am trying to create a function that checks if a internet connection is available or not and if it isn\'t, it gives an alert

Answer 1

Maybe try this

handler.removeCallbacks(checkInternetConnection);
                handler.postDelayed(checkInternetConnection, UPDATE_INTERVAL); 



    public Runnable checkInternetConnection = new Runnable() {

            public void run() {

                handler.postDelayed(checkInternetConnection, UPDATE_INTERVAL);
                ConnectivityManager conMgr = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

                if(conMgr.getActiveNetworkInfo()!=null
                && conMgr.getActiveNetworkInfo().isAvailable()
                && conMgr.getActiveNetworkInfo().isConnected()){
                    alertOff();

                }
                else{
                    alertOn();
                }

            }
        };