AppWidgetManager manager = AppWidgetManager.getInstance(context);
        RemoteViews remoteViews = new RemoteViews(context.getPackageName(), layoutId);
        ComponentName thisWidget = new ComponentName(context, getClass());
        Intent intent = new Intent(context, MainActivity.class);
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
        remoteViews.setOnClickPendingIntent(R.id.widget_btn, pendingIntent);
        manager.updateAppWidget(thisWidget, remoteViews);