RecycleView PullToRefresh SwipeRefreshLayout

activity_my.xml

<android.support.v4.widget.SwipeRefreshLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/swipe_layout">

    <android.support.v7.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/recycler_view" />
</android.support.v4.widget.SwipeRefreshLayout>

MyActivity.java

import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;

import com.togethernetworks.basesdk.BaseActivity;
import com.togethernetworks.gallery.samples.mortar.UiModule;

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


public class MyActivity extends BaseActivity {

    private RecyclerView recyclerView;
    private SwipeRefreshLayout refreshLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my);
        refreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_layout);
        refreshLayout.setColorSchemeColors(Color.RED, Color.GREEN, Color.BLUE, Color.YELLOW);
        refreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
             
            }
        });

        recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
        final LinearLayoutManager layoutParams = new LinearLayoutManager(this);
        recyclerView.setLayoutManager(layoutParams);
        SomeAdapter adapter = new SomeAdapter(this);
        recyclerView.setAdapter(adapter);
        recyclerView.setOnScrollListener(new RecyclerView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(int newState) {
            }

            @Override
            public void onScrolled(int dx, int dy) {
                refreshLayout.setEnabled(layoutParams.findFirstCompletelyVisibleItemPosition() == 0);
            }
        });
    }
}

Thank you so much @VladSumtsov , very helpful gist

the last 2 method that is overrided should add a parameter in SDK 21:

            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState){ 
            @Override
            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {