通过服务修改widgetUI

public static void updateAppWidget(Context context, String displayMsg) {
		AppWidgetManager appWidgetManager = AppWidgetManager
				.getInstance(context);
		RemoteViews views = new RemoteViews(context.getPackageName(),
				R.layout.widget);

}

新建一个服务， 通过Widget.updateAppWidget(Context, s);传值