1.布局文件

 <android.support.v4.widget.NestedScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent">
        <LinearLayout
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
        <android.support.v7.widget.RecyclerView
            android:id="@+id/gv"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:numColumns="3"
            android:paddingLeft="15dp"
            android:paddingRight="15dp" />
        </LinearLayout>
        </android.support.v4.widget.NestedScrollView>

2.activity代码

         gv = findViewById(R.id.gv);
         gv.setNestedScrollingEnabled(false);
         GridLayoutManager layoutManage = new 
         GridLayoutManager(wylzgzryactivity.this, 3);//3代表一行3列
         gv.setLayoutManager(layoutManage);
         Adapter adapter = new Adapter(this,hysyyMenuBeanList);//点击事件
        gv.setAdapter(adapter);
        adapter.notifyDataSetChanged();
        adapter.setOnItemClickListener(new Adapter.OnItemClickListener() {
            @Override
            public void setOnclickItem(View view, int position) {
     }
            }
        });

3.adapter 代码

public class Adapter extends RecyclerView.Adapter<Adapter.ViewHolder> {
    Context mcontext;
    List<hysyyMenuBean> pllist;
    private int num, service;
    private OnItemClickListener onItemOnclick;;
    public OldWYLVZHIAdapter(Context context, List<hysyyMenuBean> pllist) {
            this.mcontext = context;
            this.pllist = pllist;

    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
       View view = View.inflate(mcontext, R.layout.item_hysyymenu, null);
       ViewHolder holder = new ViewHolder(view);
        return holder;
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder,int position) {
        hysyyMenuBean hysyyMenuBean = pllist.get(position);

        holder.name.setText(hysyyMenuBean.getName());
        String code = hysyyMenuBean.getCode();
  holder.all.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (onItemOnclick!=null){
                    onItemOnclick.setOnclickItem(view,holder.getAdapterPosition());
                }
            }
        });
    }

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


    static class ViewHolder extends RecyclerView.ViewHolder{
        TextView name;
        TextView shenhesum_view;
        RelativeLayout all;
        public ViewHolder (View rootView)
        {
            super(rootView);
            name = rootView.findViewById(R.id.name);
            shenhesum_view = rootView.findViewById(R.id.shenhesum_view);
            all = rootView.findViewById(R.id.all);
        }

    }

    public  interface OnItemClickListener{
        void setOnclickItem(View view, int position);
    }
    public void setOnItemClickListener(OnItemClickListener onItemOnclick) {
        this.onItemOnclick = onItemOnclick;
    }

4.item_hysyymenu布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    android:id="@+id/all"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
   >

        <TextView
            android:drawablePadding="3dp"
            android:layout_marginTop="35dp"
            android:id="@+id/name"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentStart="true"
            android:layout_alignParentTop="true"
            android:layout_gravity="center"
            android:drawableTop="@drawable/hysyy_yysh1"
            android:gravity="center_horizontal"
            android:src="@drawable/nodata"
            android:textColor="#000"
            android:textSize="14sp" />

    <TextView
        android:layout_marginTop="35dp"
        android:id="@+id/shenhesum_view"
        android:layout_width="23.5dp"
        android:layout_height="21dp"
        android:layout_alignParentEnd="true"
        android:layout_marginEnd="17dp"
        android:layout_alignParentTop="true"
        android:background="@drawable/jb"
        android:gravity="center"
        android:text="0"
        android:textColor="@color/color_white"
        android:textSize="10sp" />
</RelativeLayout>