Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2012-2014 lacolaco.net * * 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 net.lacolaco.smileessence.view; import android.widget.ListView; import com.handmark.pulltorefresh.library.PullToRefreshBase; import net.lacolaco.smileessence.activity.MainActivity; import net.lacolaco.smileessence.entity.Account; import net.lacolaco.smileessence.twitter.TwitterApi; import net.lacolaco.smileessence.twitter.task.DirectMessagesTask; import net.lacolaco.smileessence.twitter.util.TwitterUtils; import net.lacolaco.smileessence.view.adapter.MessageListAdapter; import net.lacolaco.smileessence.viewmodel.MessageViewModel; import twitter4j.DirectMessage; import twitter4j.Paging; import twitter4j.Twitter; /** * Fragment of messages list */ public class MessagesFragment extends CustomListFragment { // --------------------- GETTER / SETTER METHODS --------------------- @Override protected PullToRefreshBase.Mode getRefreshMode() { return PullToRefreshBase.Mode.BOTH; } // ------------------------ INTERFACE METHODS ------------------------ // --------------------- Interface OnRefreshListener2 --------------------- @Override public void onPullDownToRefresh(final PullToRefreshBase<ListView> refreshView) { final MainActivity activity = (MainActivity) getActivity(); final Account currentAccount = activity.getCurrentAccount(); Twitter twitter = TwitterApi.getTwitter(currentAccount); final MessageListAdapter adapter = getListAdapter(activity); Paging paging = TwitterUtils.getPaging(TwitterUtils.getPagingCount(activity)); if (adapter.getCount() > 0) { paging.setSinceId(adapter.getTopID()); } new DirectMessagesTask(twitter, activity, paging) { @Override protected void onPostExecute(DirectMessage[] directMessages) { super.onPostExecute(directMessages); for (int i = directMessages.length - 1; i >= 0; i--) { adapter.addToTop(new MessageViewModel(directMessages[i], currentAccount)); } updateListViewWithNotice(refreshView.getRefreshableView(), adapter, true); refreshView.onRefreshComplete(); } }.execute(); } @Override public void onPullUpToRefresh(final PullToRefreshBase<ListView> refreshView) { final MainActivity activity = (MainActivity) getActivity(); final Account currentAccount = activity.getCurrentAccount(); Twitter twitter = TwitterApi.getTwitter(currentAccount); final MessageListAdapter adapter = getListAdapter(activity); Paging paging = TwitterUtils.getPaging(TwitterUtils.getPagingCount(activity)); if (adapter.getCount() > 0) { paging.setMaxId(adapter.getLastID() - 1); } new DirectMessagesTask(twitter, activity, paging) { @Override protected void onPostExecute(DirectMessage[] directMessages) { super.onPostExecute(directMessages); for (DirectMessage directMessage : directMessages) { adapter.addToBottom(new MessageViewModel(directMessage, currentAccount)); } updateListViewWithNotice(refreshView.getRefreshableView(), adapter, false); refreshView.onRefreshComplete(); } }.execute(); } private MessageListAdapter getListAdapter(MainActivity activity) { return (MessageListAdapter) activity.getListAdapter(MainActivity.ADAPTER_MESSAGES); } }