RecyclerView 的 OnClickListener 无法正常工作

Question

我想在我的歌曲RecyclerView 上实现OnClickListener。每当我点击任何项目时，都会触发 OnClick 事件，但它会在多个项目上触发。但应该为我点击的项目解雇它。它还会在RecyclerView 的随机行上触发。例如，当我单击RecyclerView 的第一行时，OnClick 事件会在随机位置触发，例如在 7 日、15 日、28 日……112 日更多。我认为它会被回收，所以会发生这种情况。

起初它并没有在随机位置上被解雇。例如，如果单击第 1 个位置 onclick 事件在第 1 个位置以及第 12、21、31 个位置触发，即在每个第 12 个位置触发。它是周期性的，但现在它只是随机的。

我尝试了很多方法，例如：

http://www.littlerobots.nl/blog/Handle-Android-RecyclerView-Clicks/

https://stackoverflow.com/a/24746411/4754718

我也尝试了许多其他方法，但抱歉我无法提供链接，因为我需要超过 10 个声誉，抱歉。

下面是我的viewholder类：

import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.Button;
import android.widget.HorizontalScrollView;
import android.widget.ImageButton;
import android.widget.TextView;
/**
 * Created by anunay on 7/11/2016.
 */
public class SongsViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener{

    public TextView songName;
    public TextView artistName;
    public TextView songDuration;
    public ImageButton expandChild;
    public Button playNow;
    public Button playNext;
    public Button addToQueue;
    public Button addToPlayList;
    public Button editMetadata;
    public Button delete;
    public static HorizontalScrollView horizontal_scroll;


    public SongsViewHolder(final View itemView) {
        super(itemView);

        songName = (TextView) itemView.findViewById(R.id.songNameText);
        artistName = (TextView) itemView.findViewById(R.id.artistNameText);
        songDuration = (TextView) itemView.findViewById(R.id.songDuration);
        expandChild = (ImageButton) itemView.findViewById(R.id.expandCollapseBtn);
        playNow = (Button) itemView.findViewById(R.id.playNowBtn);
        playNext = (Button) itemView.findViewById(R.id.playNextBtn);
        addToQueue = (Button) itemView.findViewById(R.id.addToQueueBtn);
        addToPlayList = (Button) itemView.findViewById(R.id.addToPlaylistBtn);
        editMetadata = (Button) itemView.findViewById(R.id.editMetaDataBtn);
        delete = (Button) itemView.findViewById(R.id.deleteBtn);
        horizontal_scroll = (HorizontalScrollView) itemView.findViewById(R.id.childSection);

        expandChild.setOnClickListener(this);

    }

    @Override
    public void onClick(View view) {
        horizontal_scroll.setVisibility(View.VISIBLE);
    }
}

如果你喜欢看，下面是我的适配器类：

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;

/**
 * Created by anunay on 7/11/2016.
 */
public class SongsAdapter extends RecyclerView.Adapter<SongsViewHolder> {

    // private  ArrayList<Song> mSongsArrayList;

    private final List<Song> mSongsArrayList;
    private Context mContext;


    public SongsAdapter(Context context, ArrayList<Song> songsArrayList) {

        mSongsArrayList = songsArrayList;
        mContext = context;

    }

    private Context getContext() {
        return mContext;
    }

    @Override
    public SongsViewHolder onCreateViewHolder(final ViewGroup parent, final int viewType) {
        Context context = parent.getContext();
        LayoutInflater inflater = LayoutInflater.from(context);

        View songsView = inflater.inflate(R.layout.songs_item, parent, false);

       SongsViewHolder songsViewHolder = new SongsViewHolder(songsView);
        return songsViewHolder;
    }

    @Override
    public void onBindViewHolder(final SongsViewHolder holder, int position) {

        Song currSong = mSongsArrayList.get(position);

        TextView songNameText = holder.songName;
        songNameText.setText(currSong.getTitle());
        TextView artistNameText = holder.artistName;
        artistNameText.setText(currSong.getArtist());
        TextView songDurationText = holder.songDuration;

        songDurationText.setText(currSong.getDurationString());
    }

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

}

and this is my screen shot

如果我在 onclick 方法中提供带有位置的 toast，而不是扩展 recyclerview，它可以完美运行，它既不是随机位置生成的，也不是周期性生成的。

expandChild.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
              //  horizontal_scroll.setVisibility(View.VISIBLE);

                Toast.makeText(view.getContext(), "clicked at position : "+getAdapterPosition(), Toast.LENGTH_SHORT).show();
            }
        });

Answer 1

将点击列表器放在 itemView 上：

public SongsViewHolder(final View itemView) {
    super(itemView);

    songName = (TextView) itemView.findViewById(R.id.songNameText);
    artistName = (TextView) itemView.findViewById(R.id.artistNameText);
    songDuration = (TextView) itemView.findViewById(R.id.songDuration);
    expandChild = (ImageButton) itemView.findViewById(R.id.expandCollapseBtn);
    playNow = (Button) itemView.findViewById(R.id.playNowBtn);
    playNext = (Button) itemView.findViewById(R.id.playNextBtn);
    addToQueue = (Button) itemView.findViewById(R.id.addToQueueBtn);
    addToPlayList = (Button) itemView.findViewById(R.id.addToPlaylistBtn);
    editMetadata = (Button) itemView.findViewById(R.id.editMetaDataBtn);
    delete = (Button) itemView.findViewById(R.id.deleteBtn);
    horizontal_scroll = (HorizontalScrollView) itemView.findViewById(R.id.childSection);

    //expandChild.setOnClickListener(this);

    itemView.setOnClickListener(new View.OnClickListener() {
            @Override public void onClick(View v) {
                //any code here
            }
        });


}

Answer 2

试试这个：

• 为在视图持有者中点击的项目创建一个监听器。

      public interface ListItemListener {
  
         void onButtonClick(String anyValue); // parameter is optional. If you want to get any value on its implementation then use.
      }
  

• 在 RecyclerView 适配器的构造函数中使用此侦听器。

         private ListItemListener mItemListener;
  
         // Constructor
          public YuueRecyclerViewAdapter(List<Data> mData, RecentItemListener itemListener) {
  
             this.data = mData;
             mItemListener = itemListener;
          }
  

• 在 View Holder 中使用它

  public class ItemViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
                   @Nullable
  @BindView(R.id.recent_title)
  TextView titleTextView;
  
  public ItemViewHolder(View itemView, ListItemListener listener) {
      super(itemView);
      ButterKnife.bind(this, itemView);
      mItemListener = listener;
      titleTextView.setOnClickListener(this);
  }
  
   @Override
  public void onClick(View v) {
        mItemListener.onButtonClick(mData); // mData is sent if you have any parameter there.
  }
  

OnCreateViewHolder

      @Override
     public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
           context = parent.getContext();
           LayoutInflater inflater = LayoutInflater.from(context);
           View progressView = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_loading_item, parent, false);
           return new ItemViewHolder(view, mItemListener);

      }

• 在您使用RecyclerView 的活动/片段上实现此侦听器。