Android：长按文本视图后，我需要弹出上下文菜单

Posted 2023-02-27

【中文标题】Android：长按文本视图后，我需要弹出上下文菜单

【英文标题】：Android: After long pressing a textview I need a Pop up Context Menu

【发布时间】：2017-05-08 19:49:58

【问题描述】：

我使用 Recyclerview 扩展了 Fragment 类。长按 textView 后我需要一个弹出菜单。我已经显示了下面的代码。没有错误，所以我不知道再看哪里了。

public class RecyclerViewFragment  extends Fragment implements View.OnCreateContextMenuListener 

    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) 
        RecyclerView recyclerView = (RecyclerView) inflater.inflate(
                R.layout.recycler_view, container, false);
        ContentAdapter adapter = new ContentAdapter(recyclerView.getContext());
        recyclerView.setAdapter(adapter);
        recyclerView.setHasFixedSize(true);
        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
        return recyclerView;
    



    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnCreateContextMenuListener 
        public ImageView avator;
        public TextView name;
        public TextView description;
        public TextView num;
        public View divider;
        public ViewHolder(LayoutInflater inflater, ViewGroup parent) 
            super(inflater.inflate(R.layout.listing_view, parent, false));
            avator = (ImageView) itemView.findViewById(R.id.listing_avatar);
            name = (TextView) itemView.findViewById(R.id.listing_title);
            description = (TextView) itemView.findViewById(R.id.listing_desc);
            num = (TextView) itemView.findViewById(R.id.listing_num) ;
            divider= itemView.findViewById(R.id.listing_div);
            itemView.setOnCreateContextMenuListener(this);
        

        @Override
        public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) 
            if (v.getId()==R.id.list) 
                //AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)menuInfo;
                menu.setHeaderTitle("Action");
                String[] menuItems = getResources().getStringArray(R.array.arr_menu);
                for (int i = 0; i<menuItems.length; i++) 
                    menu.add(Menu.NONE, i, i, menuItems[i]);
                
            
        
    

【问题讨论】：

回收器视图如何扩展片段类？

【参考方案1】：

tv.setOnLongClickListener(new OnLongClickListener()

    @Override
    public boolean onLongClick(View v) 
        // TODO Auto-generated method stub
        return false;
    

);

使用 OnLongClickListener 代替 OnClickListner

https://developer.android.com/guide/topics/ui/menus.html

【参考方案2】：

希望对你有帮助。

onCreate()

registerForContextMenu(textView1);

@Override   
    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo)  
      
            super.onCreateContextMenu(menu, v, menuInfo);  
            menu.setHeaderTitle("Select The Action");    
            menu.add(0, v.getId(), 0, "Call");//groupId, itemId, order, title   
            menu.add(0, v.getId(), 0, "SMS");   
       
    @Override    
    public boolean onContextItemSelected(MenuItem item)    
            if(item.getTitle()=="Call")  
                Toast.makeText(getApplicationContext(),"calling code",Toast.LENGTH_LONG).show();  
                
            else if(item.getTitle()=="SMS")  
                Toast.makeText(getApplicationContext(),"sending sms code",Toast.LENGTH_LONG).show();  
            else  
               return false;  
                
          return true;