@Override
protected FilterResults performFiltering(CharSequence prefix) {
FilterResults results = new FilterResults();
if (mOriginalValues == null) {
mOriginalValues = new ArrayList<EMConversation>();
}
if (prefix == null || prefix.length() == 0) {
results.values = copyConversationList;
results.count = copyConversationList.size();
} else {
String prefixString = prefix.toString();
final int count = mOriginalValues.size();
final ArrayList<EMConversation> newValues = new ArrayList<EMConversation>();
for (int i = 0; i < count; i++) {
final EMConversation value = mOriginalValues.get(i);
String username = value.getUserName();
EMGroup group = EMClient.getInstance().groupManager().getGroup(username);
if (group != null) {
username = group.getGroupName();
} else {
EaseUser user = EaseUserUtils.getUserInfo(username);
// TODO: not support Nick anymore
// if(user != null && user.getNick() != null)
// username = user.getNick();
}
// First match against the whole ,non-splitted value
if (username.startsWith(prefixString)) {
newValues.add(value);
} else {
final String[] words = username.split(" ");
final int wordCount = words.length;
// Start at index 0, in case valueText starts with space(s)
for (int k = 0; k < wordCount; k++) {
if (words[k].startsWith(prefixString)) {
newValues.add(value);
break;
}
}
}
}
results.values = newValues;
results.count = newValues.size();
}
return results;
}
@Override
public int getItemViewType(int position) {
EMMessage message = mConversation.getAllMessages().get(position);
MessageViewType type = MessageViewType.parse(message);
if (type != null) {
return type.ordinal();
}
return 0;
}
protected void onConversationInit() {
conversation =
EMClient.getInstance()
.chatManager()
.getConversation(toChatUsername, EaseCommonUtils.getConversationType(chatType), true);
conversation.markAllMessagesAsRead();
// the number of messages loaded into conversation is getChatOptions().getNumberOfMessagesLoaded
// you can change this number
final List<EMMessage> msgs = conversation.getAllMessages();
int msgCount = msgs != null ? msgs.size() : 0;
if (msgCount < conversation.getAllMsgCount() && msgCount < pagesize) {
String msgId = null;
if (msgs != null && msgs.size() > 0) {
msgId = msgs.get(0).getMsgId();
}
conversation.loadMoreMsgFromDB(msgId, pagesize - msgCount);
}
}
public BaseLazyChatMessageAdapter(
Context cxt,
String username,
EMConversation.EMConversationType type,
int firstLoadDataCount) {
this.mContext = cxt;
this.mUserName = username;
this.mConversation = EMClient.getInstance().chatManager().getConversation(username, type, true);
// 首次加载
mConversation.loadMoreMsgFromDB("", firstLoadDataCount);
}
protected void onConversationInit() {
// 获取当前conversation对象
conversation =
EMClient.getInstance()
.chatManager()
.getConversation(toChatUsername, EaseCommonUtils.getConversationType(chatType), true);
// 把此会话的未读数置为0
conversation.markAllMessagesAsRead();
// 初始化db时，每个conversation加载数目是getChatOptions().getNumberOfMessagesLoaded
// 这个数目如果比用户期望进入会话界面时显示的个数不一样，就多加载一些
final List<EMMessage> msgs = conversation.getAllMessages();
int msgCount = msgs != null ? msgs.size() : 0;
if (msgCount < conversation.getAllMsgCount() && msgCount < pagesize) {
String msgId = null;
if (msgs != null && msgs.size() > 0) {
msgId = msgs.get(0).getMsgId();
}
conversation.loadMoreMsgFromDB(msgId, pagesize - msgCount);
}
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView =
LayoutInflater.from(getContext()).inflate(R.layout.ease_row_chat_history, parent, false);
}
ViewHolder holder = (ViewHolder) convertView.getTag();
if (holder == null) {
holder = new ViewHolder();
holder.name = (TextView) convertView.findViewById(R.id.name);
holder.unreadLabel = (TextView) convertView.findViewById(R.id.unread_msg_number);
holder.message = (TextView) convertView.findViewById(R.id.message);
holder.time = (TextView) convertView.findViewById(R.id.time);
holder.avatar = (ImageView) convertView.findViewById(R.id.avatar);
holder.msgState = convertView.findViewById(R.id.msg_state);
holder.list_itease_layout =
(RelativeLayout) convertView.findViewById(R.id.list_itease_layout);
convertView.setTag(holder);
}
holder.list_itease_layout.setBackgroundResource(R.drawable.ease_mm_listitem);
// 获取与此用户/群组的会话
EMConversation conversation = getItem(position);
// 获取用户username或者群组groupid
String username = conversation.getUserName();
if (conversation.getType() == EMConversationType.GroupChat) {
// 群聊消息，显示群聊头像
holder.avatar.setImageResource(R.drawable.ease_group_icon);
EMGroup group = EMClient.getInstance().groupManager().getGroup(username);
holder.name.setText(group != null ? group.getGroupName() : username);
} else if (conversation.getType() == EMConversationType.ChatRoom) {
holder.avatar.setImageResource(R.drawable.ease_group_icon);
EMChatRoom room = EMClient.getInstance().chatroomManager().getChatRoom(username);
holder.name.setText(
room != null && !TextUtils.isEmpty(room.getName()) ? room.getName() : username);
} else {
EaseUserUtils.setUserAvatar(getContext(), username, holder.avatar);
EaseUserUtils.setUserNick(username, holder.name);
}
if (conversation.getUnreadMsgCount() > 0) {
// 显示与此用户的消息未读数
holder.unreadLabel.setText(String.valueOf(conversation.getUnreadMsgCount()));
holder.unreadLabel.setVisibility(View.VISIBLE);
} else {
holder.unreadLabel.setVisibility(View.INVISIBLE);
}
if (conversation.getAllMsgCount() != 0) {
// 把最后一条消息的内容作为item的message内容
EMMessage lastMessage = conversation.getLastMessage();
holder.message.setText(
EaseSmileUtils.getSmiledText(
getContext(), EaseCommonUtils.getMessageDigest(lastMessage, (this.getContext()))),
BufferType.SPANNABLE);
holder.time.setText(DateUtils.getTimestampString(new Date(lastMessage.getMsgTime())));
if (lastMessage.direct() == EMMessage.Direct.SEND
&& lastMessage.status() == EMMessage.Status.FAIL) {
holder.msgState.setVisibility(View.VISIBLE);
} else {
holder.msgState.setVisibility(View.GONE);
}
}
// 设置自定义属性
holder.name.setTextColor(primaryColor);
holder.message.setTextColor(secondaryColor);
holder.time.setTextColor(timeColor);
if (primarySize != 0) holder.name.setTextSize(TypedValue.COMPLEX_UNIT_PX, primarySize);
if (secondarySize != 0) holder.message.setTextSize(TypedValue.COMPLEX_UNIT_PX, secondarySize);
if (timeSize != 0) holder.time.setTextSize(TypedValue.COMPLEX_UNIT_PX, timeSize);
return convertView;
}
@Override
public Object getItem(int position) {
return mConversation.getAllMessages().get(position);
}
@Override
public int getCount() {
return mConversation.getAllMessages().size();
}
/** 清空消息的内存缓存 */
public void clearAllMessagesMemoryCache() {
mConversation.clear();
}
/**
* 获取所有消息
*
* @return 所有消息
*/
public List<EMMessage> getAllMessages() {
return mConversation.getAllMessages();
}
/** 加载所有新消息并且显示数据 建议在子线程中加载 */
public void loadAllNewAndShowData() {
mConversation.markAllMessagesAsRead();
refreshOnUIThread();
}
/**
* 加载更多旧消息并且显示数据 建议在子线程中加载
*
* @param count 要再加载的数量
*/
public void loadOldAndShowData(int count) {
mConversation.loadMoreMsgFromDB(getAllMessages().get(0).getMsgId(), count);
refreshOnUIThread();
}