Java tutorial
/* * Copyright 2013 Department of Computer Science and Technology, Guangxi University * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ package gxu.software_engineering.market.android.ui; import gxu.software_engineering.market.android.adapter.UsersAdapter; import gxu.software_engineering.market.android.provider.MarketProvider; import gxu.software_engineering.market.android.service.FetchService; import gxu.software_engineering.market.android.util.C; import gxu.software_engineering.market.android.util.ServiceHelper; import android.content.Intent; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.ListFragment; import android.support.v4.app.LoaderManager.LoaderCallbacks; import android.support.v4.content.CursorLoader; import android.support.v4.content.Loader; import android.support.v4.view.MenuItemCompat; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.widget.ArrayAdapter; import android.widget.ListView; /** * ? * * @author longkai() * @email im.longkai@gmail.com * @since 2013-6-23 */ public class UsersFragment extends ListFragment implements LoaderCallbacks<Cursor> { private UsersAdapter mAdapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRetainInstance(true); setHasOptionsMenu(true); mAdapter = new UsersAdapter(getActivity()); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { MenuItem populateItem = menu.add(Menu.NONE, 1, 0, "Populate"); MenuItemCompat.setShowAsAction(populateItem, MenuItemCompat.SHOW_AS_ACTION_IF_ROOM); MenuItem clearItem = menu.add(Menu.NONE, 2, 0, "Clear"); MenuItemCompat.setShowAsAction(clearItem, MenuItemCompat.SHOW_AS_ACTION_IF_ROOM); } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); setListAdapter(mAdapter); getLoaderManager().initLoader(0, null, this); } @Override public void onListItemClick(ListView l, View v, int position, long id) { Bundle args = new Bundle(); args.putLong(C.ID, id); UserInfoBoxFragment fragment = new UserInfoBoxFragment(); fragment.setArguments(args); fragment.show(getFragmentManager(), "user_info"); } @Override public Loader<Cursor> onCreateLoader(int arg0, Bundle arg1) { Uri data = Uri.parse(C.BASE_URI + C.USERS); // Intent intent = new Intent(getActivity(), FetchService.class); // intent.setData(data); // intent.putExtra(C.TARGET_ENTITY, ServiceHelper.LASTEST_USERS); // getActivity().startService(intent); return new CursorLoader(getActivity(), data, null, null, null, null); } @Override public void onLoadFinished(Loader<Cursor> arg0, Cursor arg1) { mAdapter.swapCursor(arg1); } @Override public void onLoaderReset(Loader<Cursor> arg0) { mAdapter.swapCursor(null); } }