Recycleview demo with List and Grid

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
     tools:context="com.srtpl.recycleandgriddemo.MainActivity">

    <Button
        android:id="@+id/bt_list"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="LIST"/>
    <Button
        android:id="@+id/bt_grid"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@+id/bt_list"
        android:text="GRID"/>
    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycle"
        android:layout_below="@+id/bt_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        />
    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycle_grid"
        android:layout_below="@+id/bt_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="gone"
        />
</RelativeLayout>

Employee.java

package com.srtpl.recycleandgriddemo;

 public class Employee {
    String name;
    String position;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPosition() {
        return position;
    }

    public void setPosition(String position) {
        this.position = position;
    }
}



import android.support.v7.widget.RecyclerView;
import android.view.View;
import android.widget.TextView;

EmployeeRowHolder.java
 
public class EmployeeRowHolder extends RecyclerView.ViewHolder {


    public TextView mTextViewOne;
    public TextView mTextViewTwo;


    public EmployeeRowHolder(View convertView) {
        super(convertView);

        this.mTextViewOne = (TextView) convertView.findViewById(R.id.txt_1);
        this.mTextViewTwo = (TextView) convertView.findViewById(R.id.txt_2);

    }

}


MainActivity.java
 

import android.content.Context;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    RecyclerView mRecyclerView;
    RecyclerView mRecyclerViewGrid;

    ArrayList<Employee> mArrayListEmployees;
    EmployeeRecyclerAdapter mEmployeeRecyclerAdapter;
    Button mButtonList;
    Button mButtonGrid;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mRecyclerView = (RecyclerView) findViewById(R.id.recycle);
        mRecyclerViewGrid = (RecyclerView) findViewById(R.id.recycle_grid);
        mButtonList = (Button) findViewById(R.id.bt_list);
        mButtonGrid = (Button) findViewById(R.id.bt_grid);

        mArrayListEmployees = new ArrayList<>();

        Employee mEmployee = new Employee();
        mEmployee.setName("EMp 1");
        mEmployee.setPosition("Team Leader");
        mArrayListEmployees.add(mEmployee);

        Employee mEmployee1 = new Employee();
        mEmployee1.setName("EMp 2");
        mEmployee1.setPosition("Developer");
        mArrayListEmployees.add(mEmployee1);

        Employee mEmployee2 = new Employee();
        mEmployee2.setName("EMp 3");
        mEmployee2.setPosition("Tester");
        mArrayListEmployees.add(mEmployee2);

        Employee mEmployee3 = new Employee();
        mEmployee3.setName("EMp 4");
        mEmployee3.setPosition("Support");
        mArrayListEmployees.add(mEmployee3);

        Employee mEmployee4 = new Employee();
        mEmployee4.setName("EMp 5");
        mEmployee4.setPosition("Designer");
        mArrayListEmployees.add(mEmployee4);

        Employee mEmployee5 = new Employee();
        mEmployee5.setName("EMp 6");
        mEmployee5.setPosition("BDM");
        mArrayListEmployees.add(mEmployee5);

        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
        mRecyclerViewGrid.setLayoutManager(new GridLayoutManager(this, 2));

        mEmployeeRecyclerAdapter = new EmployeeRecyclerAdapter(MainActivity.this, mArrayListEmployees);
        mRecyclerView.setAdapter(mEmployeeRecyclerAdapter);
        mRecyclerViewGrid.setAdapter(mEmployeeRecyclerAdapter);
        mButtonList.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mRecyclerView.setVisibility(View.VISIBLE);
                mRecyclerViewGrid.setVisibility(View.GONE);
            }
        });
        mButtonGrid.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mRecyclerView.setVisibility(View.GONE);
                mRecyclerViewGrid.setVisibility(View.VISIBLE);
            }
        });
    }

    public class EmployeeRecyclerAdapter extends RecyclerView.Adapter<EmployeeRowHolder> {


        private List<Employee> list;

        private Context mContext;

        public EmployeeRecyclerAdapter(Context context, List<Employee> feedItemList) {
            this.list = feedItemList;
            this.mContext = context;

        }


        @Override
        public EmployeeRowHolder onCreateViewHolder(ViewGroup viewGroup, final int i) {
            View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.row_item, null);
            EmployeeRowHolder mh = new EmployeeRowHolder(v);

            return mh;
        }

        @Override
        public void onBindViewHolder(final EmployeeRowHolder queryListRowHolder, final int i) {
            queryListRowHolder.mTextViewOne.setText(list.get(i).getName());
            queryListRowHolder.mTextViewTwo.setText(list.get(i).getPosition());

        }


        @Override
        public int getItemCount() {
            return (null != list ? list.size() : 0);
        }
    }

}