package com.ccxt.whl.activity;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.text.Editable;
import android.text.TextWatcher;
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.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.ccxt.whl.DemoApplication;
import com.ccxt.whl.R;
import com.ccxt.whl.adapter.ChatAllHistoryAdapter;
import com.ccxt.whl.db.InviteMessgeDao;
import com.ccxt.whl.domain.User;
/**
* 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
*
*/
public class ChatAllHistoryFragment extends Fragment {
private InputMethodManager inputMethodManager;
private ListView listView;
private Map<String, User> contactList;
private ChatAllHistoryAdapter adapter;
private EditText query;
private ImageButton clearSearch;
public RelativeLayout errorItem;
public TextView errorText;
private boolean hidden;
private List<EMGroup> groups;
@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);
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);
// contact list
contactList = DemoApplication.getInstance().getContactList();
listView = (ListView) getView().findViewById(R.id.list);
adapter = new ChatAllHistoryAdapter(getActivity(), 1, loadConversationsWithRecentChat());
groups = EMGroupManager.getInstance().getAllGroups();
// 设置adapter
listView.setAdapter(adapter);
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(DemoApplication.getInstance().getUser()))
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
if (getActivity().getWindow().getAttributes().softInputMode != WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN) {
if (getActivity().getCurrentFocus() != null)
inputMethodManager.hideSoftInputFromWindow(getActivity().getCurrentFocus().getWindowToken(),
InputMethodManager.HIDE_NOT_ALWAYS);
}
return false;
}
});
// 搜索框
query = (EditText) getView().findViewById(R.id.query);
// 搜索框中清除button
clearSearch = (ImageButton) getView().findViewById(R.id.search_clear);
query.addTextChangedListener(new TextWatcher() {
public void onTextChanged(CharSequence s, int start, int before, int count) {
adapter.getFilter().filter(s);
if (s.length() > 0) {
clearSearch.setVisibility(View.VISIBLE);
} else {
clearSearch.setVisibility(View.INVISIBLE);
}
}
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
public void afterTextChanged(Editable s) {
}
});
clearSearch.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
query.getText().clear();
}
});
}
@Override
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
super.onCreateContextMenu(menu, v, menuInfo);
// if(((AdapterContextMenuInfo)menuInfo).position > 0){ m,
getActivity().getMenuInflater().inflate(R.menu.delete_message, 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() {
adapter = new ChatAllHistoryAdapter(getActivity(), R.layout.row_chat_history, loadConversationsWithRecentChat());
listView.setAdapter(adapter);
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> conversationList = new ArrayList<EMConversation>();
//过滤掉messages seize为0的conversation
for(EMConversation conversation : conversations.values()){
if(conversation.getAllMessages().size() != 0)
conversationList.add(conversation);
}
// 排序
sortConversationByLastChatTime(conversationList);
return conversationList;
}
/**
* 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();
}
}
@Override
public void onResume() {
super.onResume();
if (!hidden) {
refresh();
}
}
}