为什么item.getMenuInfo（）为null？
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在我的ListVeiw项目中，我有4-8个ImageView（其中一些是不可见的，取决于某些值）和4个TextView。
当我长按一下Listview的项目时，（AdapterContextMenuInfo）item.getMenuInfo（）返回null。
在我的适配器中，我定义了以下方法：
public int getCount() {
return NewList.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public void Remove(int id){
notifyDataSetChanged();
}
public View getView(int position, View convertView, ViewGroup parent){
View vi=convertView;
NewsFeedHolder holder;
News n= NewList.get(position);
List<NewsItem> items = n.getNewsItems();
int ItemsLen = items.size();
if (convertView == null){
vi = inflater.inflate(R.layout.newsfeed_item, null);
holder=new NewsFeedHolder();
holder.txtTitle = (TextView)vi.findViewById(R.id.newsfeed_item_name);
holder.avatar_image = (ImageView)vi.findViewById(R.id.newsfeed_item_icon);
holder.txtUpdate = (TextView)vi.findViewById(R.id.newsfeed_item_update);
holder.txtLike = (TextView)vi.findViewById(R.id.newsfeed_item_like);
holder.txtDisLike = (TextView)vi.findViewById(R.id.newsfeed_item_dislike);
holder.btnLike = (ImageButton)vi.findViewById(R.id.newsfeed_like_button) ;
holder.btntxtDisLike = (ImageButton)vi.findViewById(R.id.newsfeed_dislike_button);
holder.imgItemIcon1 = (ImageView)vi.findViewById(R.id.newsfeed_item_icon1);
holder.imgItemIcon2 = (ImageView)vi.findViewById(R.id.newsfeed_item_icon2);
holder.imgItemIcon3 = (ImageView)vi.findViewById(R.id.newsfeed_item_icon3);
holder.btnLike.setOnClickListener(activity.OnLikeClickListener);
holder.btntxtDisLike.setOnClickListener(activity.OnDisLikeOnClickListener);
vi.setTag(holder);
}
else {
holder=(NewsFeedHolder)vi.getTag();
}
imageLoader.DisplayImage(n.getUserAvatarUrl(), activity, holder.avatar_image);
String url1,url2,url3;
try{
switch(ItemsLen){
case 1:
url1 = n.getNewsItems().get(0).getItemUrl();
imageLoader.DisplayImage(url1, activity, holder.imgItemIcon1);
break;
case 2:
url1 = n.getNewsItems().get(1).getItemUrl();
imageLoader.DisplayImage(url1, activity, holder.imgItemIcon1);
url2 = n.getNewsItems().get(1).getItemUrl();
imageLoader.DisplayImage(url2, activity, holder.imgItemIcon2);
break;
case 3:
url1 = n.getNewsItems().get(2).getItemUrl();
imageLoader.DisplayImage(url1, activity, holder.imgItemIcon1);
url2 = n.getNewsItems().get(2).getItemUrl();
imageLoader.DisplayImage(url2, activity, holder.imgItemIcon2);
url3 = n.getNewsItems().get(2).getItemUrl();
imageLoader.DisplayImage(url3, activity, holder.imgItemIcon3);
break;
default:
}
}
catch(Exception e){
Log.i(\"adaptex\",e.getMessage());
}
holder.txtTitle.setText(n.getNewsTitle());
holder.txtUpdate.setText(n.getUpdate());
holder.txtLike.setText(Integer.toString(n.getLike()));
holder.txtDisLike.setText(Integer.toString(n.getDesLike()));
activity.registerForContextMenu(vi);
vi.setOnClickListener(activity.OnListItemClickListener);
return vi;
}
item.getMenuInfo()
没有找到相关结果
已邀请:
3 个回复
樊熄忙暖
旗低饶彤
public Object getItem(int position) { return position; } public long getItemId(int position) { return position; }，而不是其方法声明中实际的本身。豪抱怒掳