android，SwipeRefreshLayout，listview下拉刷新

利用SwipeRefreshLayout官方控件给listview添加下拉刷新组件，MainActivity.xml如下

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.SwipeRefreshLayout //需要在litview外套住他
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/swipe_container2"
android:layout_width="match_parent"
android:layout_height="wrap_content" >

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layoutAnimation="@anim/anim_layout" >
    </ListView>
</android.support.v4.widget.SwipeRefreshLayout>

MainActivity.java中代码如下

//定义listview和SwipeRefreshLayout
private ListView listView;
private SwipeRefreshLayout swipeRefreshLayout;
//oncreate中如下
swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_container2);//关联刷新布局
swipeRefreshLayout.setColorScheme( // 刷新条上色
            android.R.color.holo_blue_light, android.R.color.holo_green_light, android.R.color.holo_orange_light,
            android.R.color.holo_red_light);
//设置监听
swipeRefreshLayout.setOnRefreshListener(new OnRefreshListener() {

        public void onRefresh() {
            // TODO Auto-generated method stub
            new Handler().postDelayed(new Runnable() {

                @Override
                public void run() {// while pushing down need to do
                    //下拉后执行的操作在这里写
                    // TODO Auto-generated method stub
                    swipeRefreshLayout.setRefreshing(false);//刷新结束
                }
            }, 1500);//为刷新条存在时间，单位毫秒
        }
    });