android 官方的下拉刷新:SwipeRefreshLayout

效果如图:

<android.support.v4.widget.SwipeRefreshLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:id="@+id/swipe">
    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Random number:"
                android:id="@+id/lbl"/>

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/rndNum"
                android:layout_toRightOf="@id/lbl"/>


            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@id/lbl"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="20dp"
                android:text="Swipe to Refresh"
                style="@android:style/TextAppearance.Medium"/>



        </RelativeLayout>
    </ScrollView>
</android.support.v4.widget.SwipeRefreshLayout>

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.widget.SwipeRefreshLayout;
import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;
import android.widget.TextView;


public class MainActivity extends Activity {

    private SwipeRefreshLayout swipe_container;
    private TextView tv;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        swipe_container = (SwipeRefreshLayout) findViewById(R.id.swipe_container);
        tv = (TextView)findViewById(R.id.textView1);

        swipe_container.setColorSchemeResources(android.R.color.holo_blue_light, android.R.color.holo_red_light, android.R.color.holo_orange_light, android.R.color.holo_green_light);
        swipe_container.setOnRefreshListener(new OnRefreshListener() {
            @Override
            public void onRefresh() {
                tv.setText("正在刷新");
                new Handler().postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        tv.setText("刷新完成");
                        swipe_container.setRefreshing(false);
                    }
                }, 5000);
            }
        });
    }

}

在listView滑动的时候会有些问题，增加listview的一个监听，如下：

listView.setOnScrollListener(new AbsListView.OnScrollListener() {
      @Override
      public void onScrollStateChanged(AbsListView absListView, int i) {
      }
      @Override
      public void onScroll(AbsListView absListView, int firstVisibleItem,
          int visibleItemCount, int totalItemCount) {
        if (firstVisibleItem == 0)
          swipe_container.setEnabled(true);
        else
          swipe_container.setEnabled(false);
      }
    });