如何自动推进ListView应用程序小部件，例如Honeycomb上的StackView应用程序小部件？

public void onEnabled(Context context) {
    [...]
  // create alarm that will move the widget list content every n seconds
  AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);

  long firstTime = SystemClock.elapsedRealtime();
  firstTime += 10*1000;

  Intent i = new Intent(context, WidgetAutoScroller.class);
  PendingIntent widgetAutoScroll = PendingIntent.getBroadcast(context, 0, i, 0);
  alarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME, firstTime, 
        10*1000, widgetAutoScroll);
  super.onEnabled(context);
}

@Override
public void onDisabled(Context context) {
  // deactivate the alarm that moves the widget content 
  Intent i = new Intent(context, WidgetAutoScroller.class);
  PendingIntent widgetAutoScroll = PendingIntent.getBroadcast(context, 0, i, 0);
  AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
  alarmManager.cancel(widgetAutoScroll);
  super.onDisabled(context);
}

    public class WidgetAutoScroller extends BroadcastReceiver {


    @Override
    public void onReceive(Context context, Intent intent) {
        AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
        int[] appWidgetIds = appWidgetManager.getAppWidgetIds(new ComponentName(context, CascadeWidgetProvider.class));

        for( int i=0 ; i<appWidgetIds.length ; i++) {
            int appWidgetId = appWidgetIds[i];
            RemoteViews rv = CascadeWidgetProvider.getWidgetView(context, appWidgetId);
            rv.setRelativeScrollPosition(R.id.widget_collection, 1);
            appWidgetManager.updateAppWidget(appWidgetId, rv);
        }
    }
}




如果您对我的问题有更好的解决方案，请回答。

编辑：另一个问题是：当我到达列表的末尾该怎么办？
我想转到列表的第一项，但是我不知道如何从我的RemoteView或appWidgetId中获取列表的当前位置...