如何在过滤后单击回收站项目上获得正确的位置？

Question

我是一个新的开发人员，一个月前才开始编程。我创建了一个具有回收者视图和搜索（过滤器）功能的歌曲本应用。当我单击项目列表时，位置正确。

当我在过滤器后单击该项目时，它的位置错误。歌号7单击时打开第一首歌曲。过滤器后保留在位置1的任何歌曲号都将在单击时打开1号歌曲。这是该应用程序的屏幕截图。Here I filtered song no.7 but when I click it opens song no.1

On click it opens song no.1

这是我的回收站适配器Java。

public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.ExampleViewHolder> implements Filterable {

private List<Item> songList;
private List<Item> songListFull;
private OnItemClickListener mListener;

public interface  OnItemClickListener{
    void OnItemClick(int position);
}
public void setOnItemClickListener(OnItemClickListener listener){
    mListener=listener;
}


    public static class ExampleViewHolder extends RecyclerView.ViewHolder {
   TextView textView1;
   TextView textView2;


   ExampleViewHolder(View itemView, final OnItemClickListener listener) {
        super(itemView);
        textView1 = itemView.findViewById(R.id.text_view1);
        textView2 = itemView.findViewById(R.id.text_view2);

        itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (listener!=null){
                    int position = getAdapterPosition();
                    if (position!=RecyclerView.NO_POSITION){
                        listener.OnItemClick(position);
                    }

                }
            }
        });
    }
}

RecyclerAdapter(List<Item> songlist) {
    this.songList = songlist;
    songListFull = new ArrayList<>(songlist);
}

@NonNull
@Override
public ExampleViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
    View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item,
            parent, false);
    return new ExampleViewHolder(v, mListener);
}

@Override
public void onBindViewHolder(@NonNull ExampleViewHolder holder, int position) {
    Item currentItem = songList.get(position);

    holder.textView1.setText(currentItem.getText1());
    holder.textView2.setText(currentItem.getText2());
}

@Override
public int getItemCount() {
    return songList.size();
}

@Override
public Filter getFilter() {
    return exampleFilter;
}

private Filter exampleFilter = new Filter() {
    @Override
    protected FilterResults performFiltering(CharSequence constraint) {
        List<Item> filteredList = new ArrayList<>();

        if (constraint == null || constraint.length() == 0) {
            filteredList.addAll(songListFull);
        } else {
            String filterPattern = constraint.toString().toLowerCase().trim();

            for (Item item : songListFull) {
                if (item.getText1().toLowerCase().contains(filterPattern)) {
                    filteredList.add(item);

                }
                }
            }

        FilterResults results = new FilterResults();
        results.values = filteredList;

        return results;

    }

    @Override
    protected void publishResults(CharSequence constraint, FilterResults results) {
        songList.clear();
        songList.addAll((List) results.values);
        notifyDataSetChanged();
    }
};

}

这是我的MainActivity Java。

public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private RecyclerAdapter adapter;
private List<Item> songList;


 @Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
 fillSongList();
    setUpRecyclerView();
  }  private void setUpRecyclerView() {
    final RecyclerView recyclerView = findViewById(R.id.recycler_view);
    recyclerView.setHasFixedSize(true);
    RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);
    adapter = new RecyclerAdapter(songList);


    final String[] tSong = getResources().getStringArray(R.array.song_title);
    final String[] dSong = getResources().getStringArray(R.array.song_detail);


    recyclerView.setLayoutManager(layoutManager);
    recyclerView.setAdapter(adapter);
    adapter.setOnItemClickListener(new RecyclerAdapter.OnItemClickListener(){
        @Override
        public void OnItemClick(int position) {
            String t = tSong[position];
            String d = dSong[position];
            Intent intent = new Intent(MainActivity.this, Main2Activity.class);
            intent.putExtra("song",d);
            intent.putExtra("title",t);
            startActivity(intent);

        }

    });
}

private void fillSongList() {
    songList = new ArrayList<>();
    songList.add(new  Item("Be Mulugaonw- 1", "1"));
    songList.add(new Item( "Gwdan Jerusalem nwgwrao -2" , "2"));
    songList.add(new Item("Jebla Jisu Kristoa fwipingwn -3","3"));
    songList.add(new Item("Ang solo kwnadwngmwn - 4", "4"));
    songList.add(new Item( "Gitao tao mwnse som - 5", "5"));
    songList.add(new Item( "Fwrbu jwngjwng nujafwidw - 6","6"));
    songList.add(new Item( "Onjlaigra bida fongbaifwr - 7","7"));
    songList.add(new Item("Jwngw onnaiao mwnselo - 8","8"));
    songList.add(new Item("Naihor hadorao mwnse - 9","9"));
    songList.add(new Item("Buhumkou salidwng - 10","10"));

    songList.add(new Item("Nwng boha dong - 11","11"));
    songList.add(new Item("Wi songsarni bida fongbaifwr - 12", "12"));
    songList.add(new Item("Wi bahaifwr gwsw swlai - 13","13"));
    songList.add(new Item("Nwi hani lwgwfwr nwi - 14","14"));
    songList.add(new Item("Bwtwra katiswi - 15","15"));
    songList.add(new Item("Be songsarao hani derakoulai - 16", "16"));
    songList.add(new Item("Bwkangjanaikou nagirwbla - 17","17"));
    songList.add(new Item("Gwsw swlaidw boibw - 18","18"));
    songList.add(new Item("Dagi daogalang switanjwng - 19", "19"));
    songList.add(new Item("Tu tabai laswi laswi - 20","20"));

请帮助我，请

Answer 1

除了发送位置以外，在该位置发送整个项目

public interface  OnItemClickListener{
    void OnItemClick(Item item);
}

通过该位置的项目

    itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (listener!=null){
                    int position = getAdapterPosition();
                    if (position!=RecyclerView.NO_POSITION){
                        listener.OnItemClick(yuurSonglist[position]);
                    }

                }
            }
        });