MainActivity.java

package com.halzhang.android.example.swiperefreshlayoutexample;

import android.os.Bundle;
import android.os.Handler;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.AbsListView;
import android.widget.ArrayAdapter;
import android.widget.ListView;


public class MainActivity extends AppCompatActivity {

    private SwipeRefreshLayout swipeRefreshLayout;
    private ListView listView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.refresh);
        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                refresh();
            }
        });
        swipeRefreshLayout.setColorSchemeResources(R.color.orange, R.color.green, R.color.blue);
        listView = (ListView) findViewById(R.id.list);
        listView.setOnScrollListener(new AbsListView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(AbsListView view, int scrollState) {

            }

            @Override
            public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
                boolean enable = false;
                if (listView != null && listView.getChildCount() > 0) {
                    // check if the first item of the list is visible
                    boolean firstItemVisible = listView.getFirstVisiblePosition() == 0;
                    // check if the top of the first item is visible
                    boolean topOfFirstItemVisible = listView.getChildAt(0).getTop() == 0;
                    // enabling or disabling the refresh layout
                    enable = firstItemVisible && topOfFirstItemVisible;
                }
                swipeRefreshLayout.setEnabled(enable);
            }
        });
        setupData();

    }

    private void setupData() {
        listView.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, android.R.id.text1, getResources().getStringArray(R.array.cat_names)));
    }

    private void refresh() {
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                setupData();
                swipeRefreshLayout.setRefreshing(false);
            }
        }, 3000);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}