Listview多重复动作？

Question

我在我的Listview中有重复的行动问题我已经在互联网上做了很多研究都失败了我的问题是，当我点击项目编号1其扩展，当我向下滚动分页追加更多的项目，我发现项目编号10是也扩大了，另一个例子，如果我切换项目编号2的数字2和12项目都切换在一起！

如何解决这个重复的问题？

这是列表视图类

public class Ringtones_Listview extends ArrayAdapter<Object> { 

    int resource; 
    String response; 
    Context context; 
    private LayoutInflater mInflater; 
    MediaPlayer mp = null; 
    ImageView play_clicked; 
    View vv = null; 
    String lang = Locale.getDefault().getDisplayLanguage(); 
    ArrayList ob; 
    Integer clickedposition; 

    public Ringtones_Listview(Context context, int resource, ArrayList objects) { 
     super(context, resource,objects); 

     this.context = context; 
     this.ob = objects; 
     this.resource = resource; 
     mInflater = LayoutInflater.from(context); 
    } 
    public int getCount() { 
     return ob.size(); 
    } 

    public JSONObject getItem(JSONObject position) { 
     return position; 
    } 

    public long getItemId(int position) { 
     return position; 
    } 
    static class ViewHolder { 

     ImageView play ; 
     ImageView download ; 
     TextView rtitle; 
     TextView size; 
     TextView downloads; 
     TextView personname; 
     TextView date; 
     RatingBar ratingsmall; 
     ImageView ratebutton; 
     long tonid; 
     TextView voters; 
     LinearLayout more; 
    } 

    @SuppressWarnings("deprecation") 
    public View getView(final int position, View convertView, ViewGroup parent) 
    { 
     ViewHolder holder; 
     //Get the current location object 
     JSONObject r = (JSONObject) getItem(position); 

     //Inflate the view 
     if(convertView == null) 
     { 

      convertView = mInflater.inflate(R.layout.ringtone_bit, null); 
      holder = new ViewHolder(); 
      convertView.setTag(holder); 


      holder.play  = (ImageView) convertView.findViewById(R.id.play); 
      holder.download = (ImageView) convertView.findViewById(R.id.download); 
      holder.ratebutton = (ImageView) convertView.findViewById(R.id.ratebutton); 
      holder.rtitle  = (TextView) convertView.findViewById(R.id.rtitle); 
      holder.size  = (TextView) convertView.findViewById(R.id.size); 
      holder.downloads = (TextView) convertView.findViewById(R.id.downloads); 
      holder.voters  = (TextView) convertView.findViewById(R.id.voters); 
      holder.personname = (TextView) convertView.findViewById(R.id.personname); 
      holder.date  = (TextView) convertView.findViewById(R.id.date); 
      holder.ratingsmall = (RatingBar) convertView.findViewById(R.id.ratingsmall); 
      holder.more = (LinearLayout) convertView.findViewById(R.id.more); 

     } 
     else 
     { 
      holder = (ViewHolder) convertView.getTag(); 
     } 

      //hide More information 
      holder.more.setVisibility(View.GONE); 

      try { 
      Date date_g = new Date(r.getLong("timestamp") * 1000); 
      holder.date.setText(date_g.toLocaleString()); 
      } catch (JSONException e2) {} 

      //set person name 
      try { 
       String client_name = (r.getString("personname").equals("null") == true) ? "ghost" : r.getString("personname"); 
       holder.personname.setText(client_name); 
      } catch (JSONException e2) {} 

      //set total votars and vote avarage 
      try { 
       float z = (float) r.getInt("rate"); 
       holder.voters.setText(" ("+ r.getLong("voters") +")/" + z); 
      } catch (JSONException e2) {}    
      //set rating bar 
      try { 
       float z = (float) r.getInt("rate"); 
       holder.ratingsmall.setRating(z); 
      } catch (JSONException e2) {}   
      //set ringtone Name as defualt device language 
      try { 
       String name = (lang.equals("English") == true) ? r.getString("en_name") : r.getString("ar_name"); 
       holder.rtitle.setText(name); 
      } catch (JSONException e2) {} 

      //ringtone file size 
      try { 
       holder.size.setText(r.getString("size")); 
      } catch (JSONException e2) {} 

      //set downloads 
      try { 
       holder.downloads.setText(String.valueOf(r.getLong("downloads"))); 
      } catch (JSONException e2) {} 

      //set ringtone ID toneid 
      try { 
        holder.tonid = r.getLong("toneid"); 
        holder.download.setTag(r.getLong("toneid")); 
        holder.ratebutton.setTag(r.getLong("toneid")); 
        holder.play.setId((int) r.getLong("toneid")); 
        convertView.setId((int) r.getLong("toneid")); 

       } catch (JSONException e1) {} 

      //set download stram url to play icon 
      try { 
       holder.play.setTag(r.getString("stream_url")); 
      } catch (JSONException e) {} 

      //add play listener test Ringtone before download it 
      holder.play.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(final View v) { 

        clickedposition=position; 
        boolean playit = false; 

        v.setMinimumHeight(200); 

        //stop Media player dont play any thing 
        if (mp != null) 
        { 
         mp.stop(); 
         mp.release(); 
         mp = null; 
        } 

        //check for last clicked item 
        if (vv != null) 
        { 
         //set last played item to play icon 
         vv.setBackgroundResource(R.drawable.play); 

         //check if last played is not smae clicked item 
         if(v.getTag().toString().equals(vv.getTag().toString()) == false) 
         { 
          playit = true; 
         }else 
         //its same item dont play stop here 
         { 
          vv  = null; 
         } 
        }else 
        //nothing played yet play it 
        { 
         playit = true; 
        } 


        if (playit) 
        { 

         vv = v; 

         v.setBackgroundResource(R.drawable.preparing_player); 


         AnimationDrawable frameAnimation = (AnimationDrawable) v.getBackground(); 
         frameAnimation.start(); 


         String stramUrl = String.valueOf(v.getTag()); 


         try { 

          mp = new MediaPlayer(); 
          mp.setAudioStreamType(AudioManager.STREAM_MUSIC); 
          mp.setDataSource(stramUrl); 
          mp.prepareAsync(); 


         } catch (Exception e) {} 


         //preparing straming 
         mp.setOnPreparedListener(new MediaPlayer.OnPreparedListener() { 

          @Override 
          public void onPrepared(MediaPlayer mps) { 

           v.setBackgroundResource(R.drawable.played); 
           mps.start(); 
          } 
         }); 

         mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener() { 

          @Override 
          public void onCompletion(MediaPlayer mp) { 
           v.setBackgroundResource(R.drawable.play); 
          } 
         }); 

        }   




       } 
      }); 




     return convertView; 
    } 

} 

Answer 1

ListView将recylce视图的性能的原因，它会使用你的第一个膨胀的看法每次，所以当你展开它，当你scorll下来，其他意见还使用相同的布局，你将能够看到扩大的意见。

编辑：

设置

vv.setBackgroundResource(R.drawable.play); //默认图像时，你不点击getView()

播放按钮，我想只有一首歌曲将在同一时间玩，所以采取int以跟踪已经点击的图像视图

这样的

整数clickedposition;将其作为字段，然后

在您的getView()上点击play imageview将其位置设置为clickedposition。

clickedposition=position; 

在像getview检查

此

if(clickedposition!=null) 
{ 
v.setBackgroundResource(R.drawable.played); 
} 

编辑：

INT checkposition = -1;

public View getView(final int position, View convertView, ViewGroup parent) 
    { 
    ...... 

      holder.play.setBackgroundResource(R.drawable.play); 
      if(checkposition!=-1) 
      { 
      holder.play.setBackgroundResource(R.drawable.played); 
      } 


     return convertView; 
    }