ChatAllHistoryFragment.java

package com.easemob.chatuidemo.activity;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Hashtable;
import java.util.List;

import android.app.Fragment;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.easemob.chat.EMChatManager;
import com.easemob.chat.EMContact;
import com.easemob.chat.EMConversation;
import com.easemob.chat.EMGroup;
import com.easemob.chat.EMGroupManager;
import com.easemob.chat.EMMessage;
import com.easemob.chatuidemo.Constant;
import com.parttime.IM.ChatActivity;
import com.parttime.main.adapter.ChatAllHistoryAdapter;
import com.easemob.chatuidemo.db.InviteMessgeDao;
import com.qingmu.jianzhidaren.R;
import com.quark.jianzhidaren.ApplicationControl;
import com.parttime.main.MainTabActivity;
import com.quark.quanzi.MyContactlistFragment;

/**
 * 显示所有会话记录，比较简单的实现，更好的可能是把陌生人存入本地，这样取到的聊天记录是可控的 圈子首页
 * 
 */
public class ChatAllHistoryFragment extends Fragment {

	private InputMethodManager inputMethodManager;
	private ListView listView;
	private ChatAllHistoryAdapter adapter;
	private EditText query;
	private ImageButton clearSearch;
	public RelativeLayout errorItem;
	public TextView errorText;
	private boolean hidden;
	private List<EMGroup> groups;
	private List<EMConversation> conversationList = null;
	private ImageView contact_hongdian_imv;// 右上角通讯录小红点图标

	public static ChatAllHistoryFragment newInstance(String param1,
			String param2) {
		ChatAllHistoryFragment fragment = new ChatAllHistoryFragment();
		return fragment;
	}

	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
			Bundle savedInstanceState) {
		return inflater.inflate(R.layout.fragment_conversation_history,
				container, false);
	}

	@Override
	public void onActivityCreated(Bundle savedInstanceState) {
		super.onActivityCreated(savedInstanceState);
		if (savedInstanceState != null
				&& savedInstanceState.getBoolean("isConflict", false))
			return;
		inputMethodManager = (InputMethodManager) getActivity()
				.getSystemService(Context.INPUT_METHOD_SERVICE);
		errorItem = (RelativeLayout) getView().findViewById(R.id.rl_error_item);
		errorText = (TextView) errorItem.findViewById(R.id.tv_connect_errormsg);
		// 进入联系人列表
		ImageView contactsView = (ImageView) getView().findViewById(
				R.id.contactsView);
		contactsView.setOnClickListener(toContextView);
		// 联系人小红点
		contact_hongdian_imv = (ImageView) getView().findViewById(
				R.id.contacts_hongdian_imv);
		update_unread_notication();// 更新小红点

		conversationList = loadConversationsWithRecentChat();
		listView = (ListView) getView().findViewById(R.id.list);
		adapter = new ChatAllHistoryAdapter(getActivity(), 1, conversationList);
		// 设置adapter
		listView.setAdapter(adapter);

		groups = EMGroupManager.getInstance().getAllGroups();

		listView.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> parent, View view,
					int position, long id) {
				EMConversation conversation = adapter.getItem(position);
				String username = conversation.getUserName();
				if (username.equals(ApplicationControl.getInstance()
						.getUserName()))
					Toast.makeText(getActivity(), "不能和自己聊天", 0).show();
				else {
					// 进入聊天页面
					Intent intent = new Intent(getActivity(),
							ChatActivity.class);
					EMContact emContact = null;
					groups = EMGroupManager.getInstance().getAllGroups();
					for (EMGroup group : groups) {
						if (group.getGroupId().equals(username)) {
							emContact = group;
							break;
						}
					}
					if (emContact != null && emContact instanceof EMGroup) {
						// it is group chat
						intent.putExtra("chatType", ChatActivity.CHATTYPE_GROUP);
						intent.putExtra("groupId",
								((EMGroup) emContact).getGroupId());
					} else {
						// it is single chat
						intent.putExtra("userId", username);
					}
					startActivity(intent);
				}
			}
		});
		// 注册上下文菜单
		registerForContextMenu(listView);

		listView.setOnTouchListener(new OnTouchListener() {

			@Override
			public boolean onTouch(View v, MotionEvent event) {
				// 隐藏软键盘
				hideSoftKeyboard();
				return false;
			}
		});
	}

	/**
	 * 前往联系人
	 */
	OnClickListener toContextView = new OnClickListener() {

		@Override
		public void onClick(View v) {

			Intent intent = new Intent();
			intent.setClass(getActivity(), MyContactlistFragment.class);
			startActivity(intent);
			// if (NetWorkCheck.isOpenNetwork(getActivity())) {
			// } else {
			// Toast mToast = Toast.makeText(ApplicationControl.getInstance(),
			// "不能连接到网络", 0);
			// mToast.setGravity(Gravity.CENTER, 0, 0);
			// mToast.show();
			// }
		}
	};

	void hideSoftKeyboard() {
		if (getActivity().getWindow().getAttributes().softInputMode != WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN) {
			if (getActivity().getCurrentFocus() != null)
				inputMethodManager.hideSoftInputFromWindow(getActivity()
						.getCurrentFocus().getWindowToken(),
						InputMethodManager.HIDE_NOT_ALWAYS);
		}
	}

	@Override
	public void onCreateContextMenu(ContextMenu menu, View v,
			ContextMenuInfo menuInfo) {
		super.onCreateContextMenu(menu, v, menuInfo);
		getActivity().getMenuInflater().inflate(R.menu.delete_message_and_top, menu);
	}

	@Override
	public boolean onContextItemSelected(MenuItem item) {
		if (item.getItemId() == R.id.delete_message) {
			EMConversation tobeDeleteCons = adapter
					.getItem(((AdapterContextMenuInfo) item.getMenuInfo()).position);
			// 删除此会话
			EMChatManager.getInstance().deleteConversation(
					tobeDeleteCons.getUserName(), tobeDeleteCons.isGroup());
			InviteMessgeDao inviteMessgeDao = new InviteMessgeDao(getActivity());
			inviteMessgeDao.deleteMessage(tobeDeleteCons.getUserName());
			adapter.remove(tobeDeleteCons);
			adapter.notifyDataSetChanged();
			// 更新消息未读数
			// ((MainActivity) getActivity()).updateUnreadLabel();
			return true;
		}
		return super.onContextItemSelected(item);
	}

	/**
	 * 刷新页面
	 */
	public void refresh() {
		if (conversationList != null) {
			conversationList.clear();
			List<EMConversation> sd = loadConversationsWithRecentChat();
			conversationList.addAll(sd);
			adapter.notifyDataSetChanged();
		}
	}

	/**
	 * 获取所有会话
	 * 
	 * @param context
	 * @return
	 */
	private List<EMConversation> loadConversationsWithRecentChat() {
		// 获取所有会话，包括陌生人
		Hashtable<String, EMConversation> conversations = EMChatManager
				.getInstance().getAllConversations();
		List<EMConversation> list = new ArrayList<EMConversation>();
		// 过滤掉messages seize为0的conversation
		for (EMConversation conversation : conversations.values()) {
			if (conversation.getAllMessages().size() != 0)
				list.add(conversation);
		}
		// 排序
		sortConversationByLastChatTime(list);
		return list;
	}

	/**
	 * 根据最后一条消息的时间排序
	 * 
	 * @param usernames
	 */
	private void sortConversationByLastChatTime(
			List<EMConversation> conversationList) {
		Collections.sort(conversationList, new Comparator<EMConversation>() {
			@Override
			public int compare(final EMConversation con1,
					final EMConversation con2) {
				EMMessage con2LastMessage = con2.getLastMessage();
				EMMessage con1LastMessage = con1.getLastMessage();
				if (con2LastMessage.getMsgTime() == con1LastMessage
						.getMsgTime()) {
					return 0;
				} else if (con2LastMessage.getMsgTime() > con1LastMessage
						.getMsgTime()) {
					return 1;
				} else {
					return -1;
				}
			}

		});
	}

	@Override
	public void onHiddenChanged(boolean hidden) {
		super.onHiddenChanged(hidden);

		this.hidden = hidden;
		if (!hidden) {
			refresh();
		}
	}

	/**
	 * 获取未读申请与通知消息
	 * 
	 * @return
	 */
	private int getUnreadNotionCountTotal() {
		int unreadAddressCountTotal = 0;
		if (ApplicationControl.getInstance().getContactList()
				.get(Constant.NEW_FRIENDS_USERNAME) != null)
			unreadAddressCountTotal = ApplicationControl.getInstance()
					.getContactList().get(Constant.NEW_FRIENDS_USERNAME)
					.getUnreadMsgCount();
		return unreadAddressCountTotal;
	}

	/**
	 * 更新右上角通讯录红点 carson
	 */
	private void update_unread_notication() {

		int carson_unread_notion_count = getUnreadNotionCountTotal();//
		if (carson_unread_notion_count > 0) {
			contact_hongdian_imv.setVisibility(View.VISIBLE);
		} else {
			contact_hongdian_imv.setVisibility(View.GONE);
		}
	}

	@Override
	public void onResume() {
		super.onResume();
		SharedPreferences sp = getActivity().getSharedPreferences(
				"jrdr.setting", getActivity().MODE_PRIVATE);
		if (!hidden && !((MainTabActivity) getActivity()).isConflict) {
			refresh();
			update_unread_notication();
		}
	}

	@Override
	public void onSaveInstanceState(Bundle outState) {
		super.onSaveInstanceState(outState);
		SharedPreferences sp = getActivity().getSharedPreferences(
				"jrdr.setting", getActivity().MODE_PRIVATE);
			if (((MainTabActivity) getActivity()).isConflict) {
				outState.putBoolean("isConflict", true);
			} else if (((MainTabActivity) getActivity())
					.getCurrentAccountRemoved()) {
				outState.putBoolean(Constant.ACCOUNT_REMOVED, true);
			}
		
	}

}