Evento de clic de RecyclerView, estilo de disposición de los elementos

RecyclerView 条目的点击事件 要自定义,在RecyclerViewAdapter 中定义接口提供回调,这里自定义了条目的点击事件和长按事件 如下

poseedor. mTextView .setText( mData .get(posición)); 
poseedor. mTextView .setOnClickListener( new View.OnClickListener() {
     @Override
 public void onClick(View v) {
         if ( mItemClickListener != null ){
             mItemClickListener .onItemClick( position ); 
        } 
    } 
}); 
poseedor. mTextView .setOnLongClickListener( new View.OnLongClickListener() {
     @Override
 public boolean onLongClick(View v) {
         if        ( mItemClickListener != null ){
             mItemClickListener .onItemLongClick( posición ); 
        } devuelve falso ; 
    } 
});
        

Devolución de llamada en actividad

recyclerViewAdapter.setItemClickListener( new RecyclerViewAdapter.OnItemClickListener() {
     @Override
 public void onItemClick( int position) { 
        Toast. makeText (MainActivity. this , "点击OK--->" + position, Toast. LENGTH_SHORT ).show();
         if (posición == 1 ) { 
            notificación(); 
        } 
    } @Override
 public void onItemLongClick( posición int ) { 
        Toast. makeText (MainActivity. this    

        , " Mantenga pulsado -- Haga clic en Aceptar --->" + posición, Brindis. LENGTH_SHORT ).show(); 

    } 
});

Establecer el estilo de disposición de los elementos.

  //设置条目的排列样式
        LinearLayoutManager linearLayoutManager = new LinearLayoutManager( this ); 
        linearLayoutManager.setOrientation(LinearLayoutManager. VERTICAL );
// StaggeredGridLayoutManager staggeredGridLayoutManager = new StaggeredGridLayoutManager(4, StaggeredGridLayoutManager.VERTICAL);
mRecyclerView .setLayoutManager(linearLayoutManager);        

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.List;


 */
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.mRecyclerViewViewHolder> {
    Context mContext;
    List<String> mData;
    private OnItemClickListener mItemClickListener;
    public RecyclerViewAdapter(Context context, List<String> mList) {
        this.mContext = context;
        this.mData = mList;
        notifyDataSetChanged();
    }



    public interface OnItemClickListener{
        void onItemClick(int position);
        void onItemLongClick(int position);
    }
    public void setItemClickListener(OnItemClickListener itemClickListener) {
      this. mItemClickListener = itemClickListener;
    }
    @Override
    public mRecyclerViewViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(mContext).inflate(R.layout.recyclerview_item, parent, false);
        return new mRecyclerViewViewHolder(view);
    }

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

        holder.mTextView.setText(mData.get(position));
        holder.mTextView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (mItemClickListener!=null){
                    mItemClickListener.onItemClick(position);
                }
            }
        });
        holder.mTextView.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View v) {
                if (mItemClickListener!=null){
                    mItemClickListener.onItemLongClick(position);
                }
                return false;
            }
        });
    }


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

    class mRecyclerViewViewHolder extends RecyclerView.ViewHolder {

        private final TextView mTextView;

        public mRecyclerViewViewHolder(View itemView) {
            super(itemView);
            mTextView = (TextView) itemView.findViewById(R.id.r_tv);
        }
    }
}