2012-07-11 86 views
10

我想在單擊ImageView時從listView中刪除某一行。我的列表視圖看起來像這樣: enter image description hereAdapterView不支持removeView(View)

我希望當最後一個圖像被點擊刪除該行。這裏是我的適配器:

public class UserItemAdapter extends ArrayAdapter<Photos.Record> { 
     private ArrayList<Photos.Record> photos; 

     public UserItemAdapter(Context context, int textViewResourceId, ArrayList<Photos.Record> photos) { 
      super(context, textViewResourceId, photos); 
      this.photos = photos; 
     } 

     @Override 
     public View getView(final int position, View convertView, ViewGroup parent) { 
      View v = convertView; 


      if (v == null) { 
       LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
       v = vi.inflate(R.layout.photorowlist, null); 
           v.setClickable(true); 
           v.setFocusable(true); 
      } 

      Photos.Record user = photos.get(position); 
      if (user != null) { 
       TextView photo_name = (TextView) v.findViewById(R.id.photoname); 

       if (photo_name != null) { 
        photo_name.setText(user.photo_name); 
       } 

      } 
         v.setOnClickListener(new OnClickListener() { 

         @Override 
         public void onClick(View view) { 
          //Toast.makeText(view.getContext(), "Clicked", Toast.LENGTH_SHORT).show(); 

          ImageView delete_photo = (ImageView) view.findViewById(R.id.deletephoto); 
          delete_photo.setOnClickListener(new OnClickListener(){ 
          @Override 
          public void onClick(View v) { 
           Toast.makeText(Photos.this, "Delete Button Clicked", Toast.LENGTH_SHORT).show(); 
           listView.removeView(v); 
           myadapter.notifyDataSetChanged(); 


       }}); 
         } 

         }); 


      return v; 
     } 
    } 

    public class Record { 
     public String photo_name; 

     public Record(String photo_name) { 
      this.photo_name = photo_name; 
     } 
    } 

我試圖刪除使用該行:

listView.removeView(v); 
myadapter.notifyDataSetChanged(); 

,我得到的錯誤:ERROR AndroidRuntime java.lang.UnsupportedOperationException: removeView(View) is not supported in AdapterView

哪裏是我的mystake?任何想法?

回答

20

您不必刪除View,而是刪除照片列表中的項目。

photos.remove(yourPhoto); 
notifyDataSetChanged(); 

此外,你應該使用ViewHolders,谷歌有很多內容。 希望這會幫助你。

+0

不,但我認爲你做錯了。您不應將您的ClickListener寫入適配器,而是寫入您的活動(或片段)中。然後,您爲您的視圖設置一個OnItemClickListener並在此刪除您的照片。我不確定我是否清楚,但你應該看看[Cyril Mottier的博客](http://android.cyrilmottier.com/?p=525) – AMerle 2012-07-11 08:28:52

+0

我試過這樣的解決方案(從適配器數組列表中刪除數據然後刷新),但沒有奏效。在這裏打開另一個問題:http://stackoverflow.com/questions/38250987/removing-an-item-from-the-dropdown-list-of-a-baseadapter – 2016-07-08 08:30:28

1

你應該嘗試一下在UI線程上,使得它的工作原理瞬間:

 listView.remove(position); 
     runOnUiThread(new Runnable() { 
      public void run() { 
       adapter.notifyDataSetChanged(); 
      } 
     }); 
9

在onItemClick(適配器視圖父,觀景,INT位置,長ID)使用

parent.removeViewInLayout(view);

而不是

parent.removeViewAt(position); 
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