public class MainActivity extends AppCompatActivity {

    private static final String Tag="MainActivity";
    private  RecyclerView mlist;
    private List<itemb> itembs;
    private RecyclerViewBaseAdapter mAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.v);
       mlist=this.findViewById(R.id.shuju);

        iniData();
       showlist(true,false);

    }

    private void iniltListener() {
        mAdapter.setOnItemClickListener(new RecyclerViewBaseAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(int position) {
                //处理条目的点击事件
                Toast.makeText(MainActivity.this,"您点击的是个条目",Toast.LENGTH_SHORT).show();
                Log.d("MainActivity","最后一步");
                System.out.println(position);
            }
        });
    }


    private void iniData() {
        itembs = new ArrayList<>();
        for (int i = 0; i < Datas.icons.length; i++) {
            itemb a = new itemb();
            a.icon = Datas.icons[i];
            a.text = "我是第" + (i + 1) + "张图片";
            itembs.add(a);
        }

    }
        public boolean onCreateOptionsMenu (Menu menu){

            getMenuInflater().inflate(R.menu.menu, menu);
            return super.onCreateOptionsMenu(menu);
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item){
            int itrmid = item.getItemId();
            switch (itrmid) {
                case R.id.menu1_1:
                    showlist(true,false);
                    break;

                case R.id.menu1_2:
                    showlist(true,true);
                    break;

                case R.id.menu1_3:
                    showlist(false,false);
                    break;

                case R.id.menu1_4:
                    showlist(false,true);
                    break;

                case R.id.menu2_1:
                    showgridview(true,false);
                    break;

                case R.id.menu2_2:
                    showgridview(true,true);
                    break;

                case R.id.menu2_3:
                    showgridview(false,false);
                    break;

                case R.id.menu2_4:
                    showgridview(false,true);
                    break;

                case R.id.menu3_1:
                    showStagger(true,false);
                    break;

                case R.id.menu3_2:
                    showStagger(true,true);
                    break;

                case R.id.menu3_3:
                    showStagger(false,false);
                    break;

                case R.id.menu3_4:
                    showStagger(false,true);
                    break;
            }
            return super.onOptionsItemSelected(item);
        }

   private void showStagger(boolean isVertical, boolean isReverse) {

       StaggeredGridLayoutManager layoutManager = new StaggeredGridLayoutManager(2,isVertical?StaggeredGridLayoutManager.VERTICAL:StaggeredGridLayoutManager.HORIZONTAL);
        layoutManager.setReverseLayout(isReverse);
        mlist.setLayoutManager(layoutManager);

        mAdapter =new StaggerAdapter(itembs);

        mlist.setAdapter(mAdapter);
       iniltListener();
    }

    public  void  showlist(boolean isVertical,boolean isReverse){
           //设置样式,就是设置布局管理器
           LinearLayoutManager layoutManager = new LinearLayoutManager(this);
           //设置水平还是垂直
            layoutManager.setOrientation(isVertical? LinearLayoutManager.VERTICAL:LinearLayoutManager.HORIZONTAL);
            //设置（标准）还是反向
            layoutManager.setReverseLayout(isReverse);
            mlist.setLayoutManager(layoutManager);
            //创建适配器
            mAdapter = new RcrcyAdapter(itembs);
            //设置到RC里中
            mlist.setAdapter(mAdapter);
        iniltListener();
        }

        public void showgridview(boolean isVertical ,boolean isReverse){
            GridLayoutManager layoutManager =new GridLayoutManager(this,3);
            //设置水平还是垂直
            layoutManager.setOrientation(isVertical? LinearLayoutManager.VERTICAL:LinearLayoutManager.HORIZONTAL);
            //设置（标准）还是反向
            layoutManager.setReverseLayout(isReverse);
            mlist.setLayoutManager(layoutManager);
            mAdapter = new GridAdapter(itembs);
            mlist.setAdapter(mAdapter);
            iniltListener();
        }
    }

父适配器

public abstract class RecyclerViewBaseAdapter extends RecyclerView.Adapter<RecyclerViewBaseAdapter.InnerHoder> {
 private  List<itemb> itembs;
    private OnItemClickListener mOnItemClicklListener;

    //构建方法是获得数据
    public  RecyclerViewBaseAdapter(List<itemb> itembs){

        this.itembs=itembs;
    }
    @NonNull
    @Override
    //创建条目的界面
    public RecyclerViewBaseAdapter.InnerHoder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
       View view=getsubView(parent,viewType);
        return new InnerHoder(view);
    }

    protected abstract View getsubView(ViewGroup parent,int viewType);

    //这里用来绑定Hoder,来设置数据的
    @Override
    public void onBindViewHolder(@NonNull RecyclerViewBaseAdapter.InnerHoder holder, int position) {
        //设置数据
        holder.setData(itembs.get(position),position);
    }
  //条目个数
    @Override
    public int getItemCount() {
        if(itembs!=null){
            return  itembs.size();
        }
        return 0;
    }

    public void setOnItemClickListener(OnItemClickListener listener) {
        //设置一个监听，其实就是一个接口，一个回调的接口
        this.mOnItemClicklListener =listener;
        Log.d("MainActivity","运行不");
    }


    /*
    *编写回调的步骤
    * 1、创建这个接口
    * 2、定义接口内部的方法
    * 3、提供设置接口的方法（其实是外部实现）
    * 4、接口方法的调用
    * */
   public interface OnItemClickListener{
       void  onItemClick(int position);
    }



    public  class InnerHoder extends  RecyclerView.ViewHolder{
        ImageView icon;
        TextView text;
        int mposition;
        public InnerHoder(@NonNull View itemView) {
            super(itemView);
            //绑定设置数据的控件
            icon = (ImageView) itemView.findViewById(R.id.icon);
            text = (TextView) itemView.findViewById(R.id.title);
           itemView.setOnClickListener(new View.OnClickListener() {
               @Override
               public void onClick(View v) {
                   if (mOnItemClicklListener!=null){
                       mOnItemClicklListener.onItemClick(mposition);
                       Log.d("MainActivity","行不？");

                   }
               }
           });
        }
      //给控件设置值
        public void setData(itemb itemb,int position)  {
           this.mposition=position;

            icon.setImageResource(itemb.icon);
            text.setText(itemb.text);
        }
    }
}