public class MainActivity extends AppWidgetProvider {


    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager,
            int[] appWidgetIds) {
        // TODO Auto-generated method stub
        super.onUpdate(context, appWidgetManager, appWidgetIds);

        final int N = appWidgetIds.length;

        for (int i=0; i<N; i++) {
            int appWidgetId = appWidgetIds[i];




             Intent intent = new Intent(context, badge.class);
            PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);



            RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.activity_main);
            views.setOnClickPendingIntent(R.id.button1, pendingIntent);




         appWidgetManager.updateAppWidget(appWidgetId, views);


        }
    }

}

public class Sms extends BroadcastReceiver {
    // Get the object of SmsManager
        final SmsManager sms = SmsManager.getDefault();


        public void onReceive(Context context, Intent intent) {

            // Retrieves a map of extended data from the intent.
            final Bundle bundle = intent.getExtras();

            try {

                if (bundle != null) {

                    final Object[] pdusObj = (Object[]) bundle.get("pdus");

                    for (int i = 0; i < pdusObj.length; i++) {

                        SmsMessage currentMessage = SmsMessage.createFromPdu((byte[]) pdusObj[i]);
                        String phoneNumber = currentMessage.getDisplayOriginatingAddress();

                        String senderNum = phoneNumber;
                        String message = currentMessage.getDisplayMessageBody();

                        Log.i("SmsReceiver", "senderNum: "+ senderNum + "; message: " + message);

                        int duration = Toast.LENGTH_LONG;
                        Toast toast = Toast.makeText(context, "senderNum: "+ senderNum + ", message: " + message, duration);
                        toast.show();


                    } // end for loop
                  } // bundle is null

            } catch (Exception e) {
                Log.e("SmsReceiver", "Exception smsReceiver" +e);

            }
        }