使用Android-PullToRefresh实现下拉刷新功能

源代码：https://github.com/chrisbanes/Android-PullToRefresh

一.导入类库

将Library文件夹作为Android项目Import到Eclipse。
在要用的项目上右键Properties，Android一栏，Add。

二.Layout

将ListView取代为PullToRefreshListView：

<com.handmark.pulltorefresh.library.PullToRefreshListView android:id="@+id/pull_to_refresh_listview" android:layout_height="fill_parent" android:layout_width="fill_parent" />

三. Activity

// Set a listener to be invoked when the list should be refreshed. PullToRefreshListView pullToRefreshView = (PullToRefreshListView) findViewById(R.id.pull_to_refresh_listview); pullToRefreshView.setOnRefreshListener(new OnRefreshListener<ListView>() { @Override public void onRefresh(PullToRefreshBase<ListView> refreshView) { // Do work to refresh the list here. new GetDataTask().execute(); } }); private class GetDataTask extends AsyncTask<Void, Void, String[]> { ... @Override protected void onPostExecute(String[] result) { // Call onRefreshComplete when the list has been refreshed. pullToRefreshView.onRefreshComplete(); super.onPostExecute(result); } }
四. 取得内部控件

The first thing to know about this library is that it is a wrapper around the existing View classes.
So if you use this library and want to get access to the internal ListView/GridView/etc then simply call getRefreshableView(). You can then call all of your usual methods such as setOnClickListener() etc.

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