搜索列表视图项位置改变，当我点击搜索项目

以下是我的适配器类搜索列表视图项位置改变，当我点击搜索项目

public class SongAdapter extends BaseAdapter{ 

    Context context; 
    //private ArrayList<SongModel> songsList = null; 
    SongAdapter songAdapter; 
    private ArrayList<SongModel> songsListDat = null; 
    private ArrayList<SongModel> songsList; 
    private static LayoutInflater inflater; 

    public SongAdapter(FragmentActivity activity, ArrayList<SongModel> songsListDat) { 

     this.context = activity; 
     this.songsListDat = songsListDat; 
     this.songsList = new ArrayList<SongModel>(); 
     this.songsList.addAll(songsListDat); 

    } 

    @Override 
    public int getViewTypeCount() { 

     return getCount(); 
    } 

    @Override 
    public int getCount() { 
     return songsListDat.size(); 
    } 

    @Override 
    public Object getItem(int position) { 
     return songsListDat.get(position); 
    } 

    @Override 
    public long getItemId(int position) { 
     return position; 
    } 

    @Override 
    public int getItemViewType(int position) { 

     return position; 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 

     inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     View vi = convertView; 
     if (convertView == null) 
      vi = inflater.inflate(R.layout.playlist_item, null); 

     TextView title = (TextView) vi.findViewById(R.id.songTitle); // title 
     SongModel song = new SongModel(); 
     song = songsListDat.get(position); 
     // Setting all values in listview 
     title.setText(song.getSongTitle()); 

     return vi; 
    } 


    // Filter Class 
    public void filter(String charText) { 
     charText = charText.toLowerCase(Locale.getDefault()); 
     songsListDat.clear(); 
     if (charText.length() == 0) { 
      songsListDat.addAll(songsList); 
     } 
     else { 
      for (SongModel song : songsList) { 
       if (song.getSongPath().toLowerCase(Locale.getDefault()).contains(charText)) { 
        songsListDat.add(song); 
       } 
      } 
     } 
     notifyDataSetChanged(); 
}

以下是我的主要活动类片段

EditText edtSearch; 
ListAdapter adapter; 
SongAdapter songAdapter; 
ArrayList<SongModel> songList = new ArrayList<SongModel>(); 
SongsManager songsManager = new SongsManager(); 

// Songs list 
public ArrayList<SongModel> songsList = new ArrayList<>(); 
@Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
      Bundle savedInstanceState) { 
    View windows = inflater.inflate(R.layout.playlist, container, false); 
    return windows; 
} 

@Override 
public void onViewCreated(View v, Bundle savedInstanceState) { 
    super.onViewCreated(v, savedInstanceState); 

    edtSearch = (EditText)getView().findViewById(R.id.search); 
    final ArrayList<SongModel> songsListData = songsManager.songList; 
    Log.i("songsListData...",""+songsListData.size()); 
    SongsManager plm = new SongsManager(); 

    // get all songs from sdcard 
    this.songsList = plm.getPlayList(); 

    // looping through playlist 
    for (int i = 0; i < songsListData.size(); i++) { 
     // creating new HashMap 
     SongModel song = songsListData.get(i); 

     // adding HashList to ArrayList 
     songsListData.add(song); 
    } 
    // Adding menuItems to ListView 
    /* adapter = new SimpleAdapter(getActivity(), songsListData, R.layout.playlist_item, new String[] { "songTitle" }, new int[] { 
      R.id.songTitle });*/ 

    songAdapter = new SongAdapter(getActivity(),songsList); 
    setListAdapter(songAdapter); 
    // selecting single ListView item 
    final ListView lv = getListView(); 

    // listening to single listitem click 
    lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { 

     @Override 
     public void onItemClick(AdapterView<?> parent, View arg0, 
           int position, long id) { 

      // getting listitem index 
      Log.i("Index", "..." + position); 
      //int songIndex = position; 
      // Starting new intent 
      Intent i = new Intent(getActivity().getApplicationContext(),Main.class); 
      songAdapter.getItem(position); 
      // Sending songIndex to PlayerActivity 
      i.putExtra("songIndex",position); 
      getActivity().setResult(100, i); 
      startActivityForResult(i, 100); 
     } 
    }); 
    edtSearch.addTextChangedListener(new TextWatcher() { 
     @Override 
     public void beforeTextChanged(CharSequence s, int start, int count, int after) { 

     } 

     @Override 
     public void onTextChanged(CharSequence cs, int start, int before, int count) { 

     } 

     @Override 
     public void afterTextChanged(Editable s) { 
      String text = edtSearch.getText().toString().toLowerCase(Locale.getDefault()); 
      songAdapter.filter(text); 
     } 
    }); 
}}

这是我的模型类

公众class SongModel {

private String songPath; 
private String songTitle; 
public SongModel(String songPath,String songTitle) 
{ 
    this.songPath = songPath; 
    this.songTitle = songTitle; 
} 
public void setSongPath(String songPath){ 
    this.songPath = songPath; 
} 
public String getSongPath() { 
    return songPath; 
} 
public void setSongTitle(String songTitle){ 
    this.songTitle = songTitle; 
} 
public String getSongTitle() { 
    return songTitle; 
}}

我如何获得搜索到的listview项目位置的确切位置。如果有人知道帮助我。在此先感谢....

来源

2016-09-01 AndroCoder Helper

根据你的问题，问题是如果歌曲的原始编号是5，搜索后它变成1，点击你得到1，但你想要5，我是否正确？ –

是的，当我点击搜索到的项目并得到错误的位置时，我面临这个问题。 –

可以分享SongModel课程吗？ –

lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { 

    @Override 
    public void onItemClick(AdapterView<?> parent, View arg0, 
          int position, long id) { 

     // getting listitem index 
     Log.i("Index", "..." + position); 
     //int songIndex = position; 
     // Starting new intent 
     Intent i = new Intent(getActivity().getApplicationContext(),Main.class); 
     SongModel song = (SongModel)songAdapter.getItem(position); 
     // Sending songIndex to PlayerActivity 
     i.putExtra("songIndex",song.getId()); 
     getActivity().setResult(100, i); 
     startActivityForResult(i, 100); 
    } 
});

看到你必须有歌一个唯一的ID在你的歌声模型，传递ID来代替。希望它有帮助。

来源

2016-09-01 11:51:39

感谢它的工作 –

试试下面给出改变这一代码也相应

public class SongAdapter extends ArrayAdapter<ToursModel> { 

    private List<SongModel> originalList; 
    private List<SongModel> tourList; 
    private SongFilter filter; 
    private Context context; 

    public SongAdapter(Context context, int resource, List<SongModel> songList) { 
     super(context, resource, songList); 
     this.context = context; 
     this.songList = new ArrayList<SongModel>(); 
     this.songList.addAll(tourList); 
     this.originalList = new ArrayList<>(); 
     this.originalList.addAll(songList); 
//  backup = songList; 
     getFilter(); 
    } 

    @Override 
    public Filter getFilter() { 
     if (filter == null) { 
      filter = new TourFilter(); 
     } 
     return filter; 
    } 

    @Override 
    public View getView(int position, View convertView, ViewGroup parent) { 

     ViewHolder holder = null; 
     // Log.v("ConvertView", String.valueOf(position)); 
     if (convertView == null) { 
      LayoutInflater vi = (LayoutInflater) context.getSystemService(
        Context.LAYOUT_INFLATER_SERVICE); 
      convertView = vi.inflate(R.layout.tour_list_item, null); 

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

     return convertView; 
    } 


    private class ViewHolder { 
     TextView songName; 
    } 

    private class TourFilter extends Filter { 

     @Override 
     protected FilterResults performFiltering(CharSequence constraint) { 

      constraint = constraint.toString().toLowerCase(); 
      FilterResults result = new FilterResults(); 
      if (constraint != null && constraint.toString().length() > 0) { 
       ArrayList<SongModel> filteredItems = new ArrayList<SongModel>(); 

       for (int i = 0, l = originalList.size(); i < l; i++) { 
        SongModel country = originalList.get(i); 
        if (country.getTourDes().toString().toLowerCase().contains(constraint)) 
         filteredItems.add(country); 
       } 
       result.count = filteredItems.size(); 
       result.values = filteredItems; 
      } else { 
       synchronized (this) { 
        result.values = originalList; 
        result.count = originalList.size(); 
        // Log.e("originalist", "" + originalList.size()); 
       } 
//    // Log.e("originalist", "original"); 
      } 
      return result; 
     } 

     @SuppressWarnings("unchecked") 
     @Override 
     protected void publishResults(CharSequence constraint, 
             FilterResults results) { 
      tourList = (ArrayList<SongModel>) results.values; 

      notifyDataSetChanged(); 
      clear(); 
      for (int i = 0, l = songList.size(); i < l; i++) 
       add(tourList.get(i)); 
//    notifyDataSetInvalidated(); 

     } 
    } 
}

来源

2016-09-01 11:48:11

项目的原始索引时filter()和notifyDatasetChanged()被称为丢失。为了找回原来的位置，在onItemClick()做到这一点：

SongModel sm = songAdapter.getItem(position); 
int originalIndex = songAdapter.songList.indexOf(sm); 
//Do whatever you want with originalIndex

来源

2016-09-01 11:51:05 Fourth

也感谢你......你的逻辑也在起作用。 –

我给你简单的答案。在你onItemClick()，你执行songAdapter.getItem(position);，做一些事情如下：

int actualPostion=songsList.indexOf(songAdapter.getItem(position));

这将是你原来选择的歌曲列表中的实际位置。

希望这可以帮助你。

来源

2016-09-01 11:52:22

它的工作....许多很多感谢你...我最近两天面临这个问题。 –

搜索列表视图项位置改变，当我点击搜索项目

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