设置android小部件的初始滚动位置

我有一个基于集合的小部件,我想更改初始滚动位置.

我已经在我的RemoteViewsFactory中尝试过以下方法.

       views.setScrollPosition(R.id.widgetList, myDesiredPosition);
       AppWidgetManager.getInstance(mContext).partiallyUpdateAppWidget(mAppWidgetId, views);

但不幸的是它不起作用..我也试图在我的WidgetProvider中设置该权限,但是没有起作用.
所以,请..有没有办法改变包裹到远程视图的列表视图的滚动位置？谢谢..

解决方法:

我已经在RemoteViewsService.RemoteViewsFactory的onDataSetChanged函数中完成了此操作.我必须添加一个AsynTask来延迟滚动.如果getLoadingView返回的视图与getViewAt返回的所有视图的高度相同,则可能不需要这样做.

@Override
public void onDataSetChanged() {
    new AsyncTask<Integer, Void, Void>() {
        @Override
        protected Void doInBackground(Integer[] params) {
            int widgetId = params[0];
            int count = params[1];

            try {
                Thread.sleep(800);
            } catch (InterruptedException e) {
                Log.d(TAG, "Scroll thread was interrupted");
            }
            String packageName = context.getPackageName();
            RemoteViews rv = new RemoteViews(packageName, R.layout.widget_layout);
            rv.setInt(R.id.list_view, "smoothScrollToPosition", count);
            AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
            appWidgetManager.partiallyUpdateAppWidget(widgetId, rv);
            return null;
        }
    }.execute(this.appWidgetId, this.rowCount);
}

标签：android-listview,android-widget,remoteview,android
来源： https://codeday.me/bug/20191122/2061356.html