//在项目下的build.gradle allprojects{repositories{... maven{url 'https://jitpack.io' } } } //在app模块下的build.gradle dependencies{compile 'com.github.open-android:PullToRefresh:v1.0' } 

<?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:id="@+id/activity_main" android:layout_width="match_parent" android:layout_height="match_parent"> <com.itheima.pulltorefreshlib.PullToRefreshListView android:id="@+id/pull_to_refresh_list_view" android:layout_width="wrap_content" android:layout_height="wrap_content"/> </RelativeLayout> 

private ArrayAdapter mArrayAdapter; private PullToRefreshListView mPullToRefreshListView; mPullToRefreshListView = (PullToRefreshListView) findViewById(R.id.pull_to_refresh_list_view); mArrayAdapter = new ArrayAdapter(this, android.R.layout.simple_list_item_1, mockList(0, 30)); mPullToRefreshListView.setAdapter(mArrayAdapter); 

private ArrayList<String> mItems = new ArrayList<String>(); /** * 创建或动态添加测试用的数据列表 * @param start 数据的起始位置 * @param count 数据的个数 * @return 当前的数据列表 */ private List<String> mockList(int start, int count){for (int i = start; i < start + count; i++){mItems.add("黑马程序员:" + i)} return mItems} 

//设置模式BOTH: 既能上拉也能下拉， mPullToRefreshListView.setMode(PullToRefreshBase.Mode.BOTH); 

//设置刷新监听 mPullToRefreshListView.setOnRefreshListener(mListViewOnRefreshListener2); private PullToRefreshBase.OnRefreshListener2<ListView> mListViewOnRefreshListener2 = new PullToRefreshBase.OnRefreshListener2<ListView>(){/** * 下拉刷新回调 * @param refreshView */ @Override public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView){//模拟延时三秒刷新 mPullToRefreshListView.postDelayed(new Runnable(){@Override public void run(){mItems.clear(); mockList(0, 20); mArrayAdapter.notifyDataSetChanged(); mPullToRefreshListView.onRefreshComplete();//下拉刷新结束，下拉刷新头复位 } }, 3000)} /** * 上拉加载更多回调 * @param refreshView */ @Override public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView){//模拟延时三秒加载更多数据 mPullToRefreshListView.postDelayed(new Runnable(){@Override public void run(){mockList(mItems.size(), 20); mArrayAdapter.notifyDataSetChanged(); mPullToRefreshListView.onRefreshComplete();//上拉加载更多结束，上拉加载头复位 } }, 3000)} };