import com.handmark.pulltorefresh.extras.listfragment.PullToRefreshListFragment; //导入依赖的package包/类
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_ptr_list_fragment);

	mPullRefreshListFragment = (PullToRefreshListFragment) getSupportFragmentManager().findFragmentById(
			R.id.frag_ptr_list);

	// Get PullToRefreshListView from Fragment
	mPullRefreshListView = mPullRefreshListFragment.getPullToRefreshListView();

	// Set a listener to be invoked when the list should be refreshed.
	mPullRefreshListView.setOnRefreshListener(this);

	// You can also just use mPullRefreshListFragment.getListView()
	ListView actualListView = mPullRefreshListView.getRefreshableView();

	mListItems = new LinkedList<String>();
	mListItems.addAll(Arrays.asList(mStrings));
	mAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, mListItems);

	// You can also just use setListAdapter(mAdapter) or
	// mPullRefreshListView.setAdapter(mAdapter)
	actualListView.setAdapter(mAdapter);

	mPullRefreshListFragment.setListShown(true);
}