入門的項目列表視圖中選擇使用右鍵菜單

不能弄清楚什麼是錯我的代碼：入門的項目列表視圖中選擇使用右鍵菜單

registerForContextMenu(lv_myhitshotlists); 
    AdapterContextMenuInfo menuinfo = null; 

    @Override 
    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { 
     super.onCreateContextMenu(menu, v, menuInfo); 
     /*menu.setHeaderTitle("Item Operations"); 
     menu.add(0, v.getId(), 0, "Edit Film"); 
     menu.add(0, v.getId(), 0, "Delete Film");*/ 

     MenuInflater inflater = getMenuInflater(); 
     inflater.inflate(R.menu.context_myfilm_list,menu); 
     menuinfo = (AdapterContextMenuInfo) menuInfo; 
     menu.setHeaderTitle("Options"); 
    } 

    @Override 
    public boolean onContextItemSelected(MenuItem item) { 
    try{ 
     menuinfo = (AdapterContextMenuInfo) item.getMenuInfo(); 
     AdapterView.AdapterContextMenuInfo info= (AdapterView.AdapterContextMenuInfo) item.getMenuInfo(); 
     Long ids = madapter.getItemId(info.position);//what item was selected is ListView 
     i = ids.intValue(); 

     switch (item.getItemId()) { 

     case R.id.menu_edit_myfilm: 

      intHitshotEdit = new Intent(MyHitshotListActivity.this,MyHitshotInfoEditActivity.class); 
      intHitshotEdit.putExtra("video_id", myList.get(i).getid()); 
      intHitshotEdit.putExtra("video_title", myList.get(i).getTitle()); 
      Toast.makeText(getApplicationContext(),myList.get(i).getTitle(), Toast.LENGTH_SHORT).show(); 
      //intVideodetails.putExtra("video_desc", myList.get(i).get); 
      startActivity(intHitshotEdit); 
      overridePendingTransition(R.anim.slideinfromright,R.anim.slideouttoleft); 
      //intVideoUpload.putExtra("title",""+info.); 

      return true; 

     case R.id.menu_delete_myfilm: 

      return true; 

     default: 

     } 
    }catch(Exception e) 
    { 
     e.printStackTrace(); 
    } 
     return super.onContextItemSelected(item); 
     }

每一次Long ids將返回0。I在onpostexecute我將數據綁定到列表視圖（）像這樣的AsyncTask的一部分：

public void setAdapterToListview(ArrayList<MyHitshotListData> myList) { 
       madapter=new MyHitshotListAdapter(context, myList); 
       lv_myhitshotlists.setAdapter(madapter); 
      }

MyHitshotListAdapter是延伸適配器底座適配器class.What是錯誤的？爲什麼id的值總是零??的position值未來的權利。

來源

2014-05-09 kgandroid

但是你爲什麼要這樣做？直接得到索引像'int index = info.position;' –

indexview的索引對嗎？ – kgandroid

雅，你會得到特定索引的數據使用'video_id = myList.get（index）.getid（）;' –

你長按列表項的您將直接得到指數在onContextItemSelected(MenuItem item)方法類似

INT指數=信息的位置。位置;

，你會從你的ArrayList獲得對具體指數數據，如

INT VIDEO_ID = myList.get（指數）.getid（）;

來源

2014-05-09 05:34:36

你可以通過菜單項

@Override 
    public boolean onContextItemSelected(MenuItem item) { 
     AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo(); 
     int listPosition = info.position; 
     myList.get(listPosition).getTitle();//list item title 
    }

來源

2014-05-09 05:34:24 kyogs

@Override 
public boolean onContextItemSelected(MenuItem item) { 
    AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo(); 
    int listPosition = info.position; 
    adapter.getItem(listPosition);//list item title 
}

來源

2016-05-06 15:36:13

入門的項目列表視圖中選擇使用右鍵菜單

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