CheckInternetConnection

private void checkInternetConnection() {
        ConnectivityManager connMgr = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo netInfo = connMgr.getActiveNetworkInfo();
        if(netInfo != null && netInfo.isConnected()) {
            getJsonData();

        } else {
            CheckInternetDialog checkInternetDialog = new CheckInternetDialog();
            checkInternetDialog.show(getSupportFragmentManager(), "checkInternetConnection");
        }
    }