关于ListView中，修改Adapter的layout中元素的问题

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通常在数据较多或者变化的时候，我们需要一个Adapter来显示对应的ListView，Adapter通常extends BaseAdapter

初始化list和Adapter后， listXXX.setAdapter 就可以了

localListView = (ListView) this.findViewById(R.id.local_list_lv);mLocalListAdapter = new LocalListAdapter(this, mBookBeanlist);localListView.setAdapter(mLocalListAdapter);

在Adapter中，

setView中做每个显示的item的操作

由于代码较长，所以，最好写一个内部类来作为数据组织者，当成一个整体来完成。做对应的监听和处理

private class ViewHolder{private RelativeLayout itemLayout;private ImageView iconImg;private ImageView deleteImg;private TextView bookNameTxt;private TextView bookNameAliasTxt;private TextView bookContentTxt;private final int position;public ViewHolder(View convertView,int position) {itemLayout = (RelativeLayout) convertView.findViewById(R.id.local_list_item_layout);iconImg = (ImageView) convertView.findViewById(R.id.local_list_item_icon_img);bookNameTxt = (TextView) convertView.findViewById(R.id.local_list_item_book_name_txt);bookNameAliasTxt = (TextView) convertView.findViewById(R.id.local_list_item_book_name_alias_txt);bookContentTxt = (TextView) convertView.findViewById(R.id.local_list_item_book_content_txt);deleteImg = (ImageView) convertView.findViewById(R.id.local_list_item_delete_img);this.position = position;}public void setData(BookBean mBookBean){bookNameTxt.setText(mBookBean.getBookName());bookNameAliasTxt.setText(mBookBean.getBookNameAlias());bookContentTxt.setText(mBookBean.getBookContent());//System.out.println(mBookBean.getFirstImg());//Utils.downLoadListImage(iconImg ,mBookBean.getFirstImg());//异步下载列表图片setItemOnListener(mBookBean);setDeleteListener(mBookBean);}private void setDeleteListener(BookBean mBookBean) {// TODO Auto-generated method stubdeleteImg.setOnClickListener(new OnClickListener() {public void onClick(View v) {// TODO Auto-generated method stubnew AlertDialog.Builder(context).setMessage("是否删除").setPositiveButton("删除", new DialogInterface.OnClickListener() {public void onClick(DialogInterface dialog, int which) {// TODO Auto-generated method stubmList.remove(position);notifyDataSetChanged();}}).create().show();}});}private void setItemOnListener(final BookBean mBookBean) {itemLayout.setOnClickListener(new OnClickListener() {public void onClick(View v) {// TODO Auto-generated method stubnew AlertDialog.Builder(context).setMessage("跳转").create().show();}});}}

再在Adapter的getView中组织下就可以了

@Overridepublic View getView(int position, View convertView, ViewGroup parent) {// TODO Auto-generated method stubconvertView = mlayoutInflater.inflate(R.layout.local_list_item, null);mViewHolder = new ViewHolder(convertView,position);convertView.setTag(mViewHolder);mViewHolder.setData(mList.get(position));return convertView;}

【问题】现在想在Activity的一个Button中设置 ListView中某个控件的 Visibility ，该怎么弄呢？