public class AppWidget extends AppWidgetProvider{

    LinearLayout layuot;

    @Override

	public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {

	    // TODO Auto-generated method stub

	    super.onUpdate(context, appWidgetManager, appWidgetIds);

	    RemoteViews remoteViews;

	    ComponentName watchWidget;

	    layuot = (LinearLayout)this.layuot.findViewById(R.id.LinearLayout01);

	    Drawable alpha = layuot.getBackground();

	    alpha.setAlpha(10);

	    DateFormat format = 

		SimpleDateFormat.getTimeInstance(SimpleDateFormat.MEDIUM, Locale.getDefault());

	    remoteViews = new RemoteViews(context.getPackageName(), R.layout.main);

	    watchWidget = new ComponentName(context, AppWidget.class);

	    remoteViews.setTextViewText(R.id.widget_textview, format.format(new Date()));

	    appWidgetManager.updateAppWidget(watchWidget, remoteViews);

	}

}