im::floo::floolib::BMXConversation

会话

Inherits from BMXBaseObject

Public Functions

Protected Functions

Public Functions Documentation

function delete

inline synchronized void delete()

Example:

function conversationId

inline long conversationId()

会话Id

Return: int64_t

Example:

    return;
}
ListOfLongLong rosterIds = new ListOfLongLong();
ListOfLongLong groupIds = new ListOfLongLong();
for (int i = 0; i < conversationList.size(); i++) {
    BMXConversation conversation = conversationList.get(i);
    if (conversation == null) {
        continue;
    }
    if (conversation.type() == BMXConversation.Type.Single) {
        if (RosterFetcher.getFetcher().getRoster(conversation.conversationId()) == null) {
            rosterIds.add(conversation.conversationId());
        }
    } else if (conversation.type() == BMXConversation.Type.Group) {
        if (RosterFetcher.getFetcher().getGroup(conversation.conversationId()) == null) {
            groupIds.add(conversation.conversationId());
        }
    }
}
if (!rosterIds.isEmpty()) {

}
ListOfLongLong rosterIds = new ListOfLongLong();
ListOfLongLong groupIds = new ListOfLongLong();
for (int i = 0; i < conversationList.size(); i++) {
    BMXConversation conversation = conversationList.get(i);
    if (conversation == null) {
        continue;
    }
    if (conversation.type() == BMXConversation.Type.Single) {
        if (RosterFetcher.getFetcher().getRoster(conversation.conversationId()) == null) {
            rosterIds.add(conversation.conversationId());
        }
    } else if (conversation.type() == BMXConversation.Type.Group) {
        if (RosterFetcher.getFetcher().getGroup(conversation.conversationId()) == null) {
            groupIds.add(conversation.conversationId());
        }
    }
}
if (!rosterIds.isEmpty()) {
    RosterManager.getInstance().getRosterList(rosterIds, true, (bmxErrorCode, itemList) -> {

for (int i = 0; i < conversationList.size(); i++) {
    BMXConversation conversation = conversationList.get(i);
    if (conversation == null) {
        continue;
    }
    if (conversation.type() == BMXConversation.Type.Single) {
        if (RosterFetcher.getFetcher().getRoster(conversation.conversationId()) == null) {
            rosterIds.add(conversation.conversationId());
        }
    } else if (conversation.type() == BMXConversation.Type.Group) {
        if (RosterFetcher.getFetcher().getGroup(conversation.conversationId()) == null) {
            groupIds.add(conversation.conversationId());
        }
    }
}
if (!rosterIds.isEmpty()) {
    RosterManager.getInstance().getRosterList(rosterIds, true, (bmxErrorCode, itemList) -> {
        if (BaseManager.bmxFinish(bmxErrorCode)) {
            RosterFetcher.getFetcher().putRosters(itemList);
            if (mAdapter != null) {

    BMXConversation conversation = conversationList.get(i);
    if (conversation == null) {
        continue;
    }
    if (conversation.type() == BMXConversation.Type.Single) {
        if (RosterFetcher.getFetcher().getRoster(conversation.conversationId()) == null) {
            rosterIds.add(conversation.conversationId());
        }
    } else if (conversation.type() == BMXConversation.Type.Group) {
        if (RosterFetcher.getFetcher().getGroup(conversation.conversationId()) == null) {
            groupIds.add(conversation.conversationId());
        }
    }
}
if (!rosterIds.isEmpty()) {
    RosterManager.getInstance().getRosterList(rosterIds, true, (bmxErrorCode, itemList) -> {
        if (BaseManager.bmxFinish(bmxErrorCode)) {
            RosterFetcher.getFetcher().putRosters(itemList);
            if (mAdapter != null) {
                mAdapter.notifyDataSetChanged();

TextView time = holder.findViewById(R.id.session_time);
TextView tvUnReadCount = holder.findViewById(R.id.session_unread_num);
ImageView ivDisturb = holder.findViewById(R.id.session_disturb);

BMXConversation item = getItem(position);
// 是否开启免打扰
boolean isDisturb = false;
BMXConversation.Type type = item == null ? null : item.type();
String name = "";
if (type != null && type == BMXConversation.Type.Single) {
    BMXRosterItem rosterItem = RosterFetcher.getFetcher().getRoster(item.conversationId());
    if (rosterItem != null && !TextUtils.isEmpty(rosterItem.alias())) {
        name = rosterItem.alias();
    } else if (rosterItem != null && !TextUtils.isEmpty(rosterItem.nickname())) {
        name = rosterItem.nickname();
    } else if (rosterItem != null) {
        name = rosterItem.username();
    }
    if (item.conversationId() == 0){
        name = mContext.getString(R.string.sys_msg);

String name = "";
if (type != null && type == BMXConversation.Type.Single) {
    BMXRosterItem rosterItem = RosterFetcher.getFetcher().getRoster(item.conversationId());
    if (rosterItem != null && !TextUtils.isEmpty(rosterItem.alias())) {
        name = rosterItem.alias();
    } else if (rosterItem != null && !TextUtils.isEmpty(rosterItem.nickname())) {
        name = rosterItem.nickname();
    } else if (rosterItem != null) {
        name = rosterItem.username();
    }
    if (item.conversationId() == 0){
        name = mContext.getString(R.string.sys_msg);
    }
    ChatUtils.getInstance().showRosterAvatar(rosterItem, avatar, mConfig);
    isDisturb = rosterItem != null && rosterItem.isMuteNotification();
} else if (type != null && type == BMXConversation.Type.Group) {
    BMXGroup groupItem = RosterFetcher.getFetcher().getGroup(item.conversationId());
    name = groupItem != null ? groupItem.name() : "";
    ChatUtils.getInstance().showGroupAvatar(groupItem, avatar, mGroupConfig);
    isDisturb = groupItem != null && groupItem.msgMuteMode() != null

        name = rosterItem.nickname();
    } else if (rosterItem != null) {
        name = rosterItem.username();
    }
    if (item.conversationId() == 0){
        name = mContext.getString(R.string.sys_msg);
    }
    ChatUtils.getInstance().showRosterAvatar(rosterItem, avatar, mConfig);
    isDisturb = rosterItem != null && rosterItem.isMuteNotification();
} else if (type != null && type == BMXConversation.Type.Group) {
    BMXGroup groupItem = RosterFetcher.getFetcher().getGroup(item.conversationId());
    name = groupItem != null ? groupItem.name() : "";
    ChatUtils.getInstance().showGroupAvatar(groupItem, avatar, mGroupConfig);
    isDisturb = groupItem != null && groupItem.msgMuteMode() != null
            && groupItem.msgMuteMode() == BMXGroup.MsgMuteMode.MuteChat;
} else {
    ChatUtils.getInstance().showRosterAvatar(null, avatar, mConfig);
}
BMXMessage lastMsg = item == null ? null : item.lastMsg();
int unReadCount = item == null ? 0 : item.unreadNumber();

@Override
public void setChatInfo(BMXMessage.MessageType chatType, final long myUserId, long chatId) {
    mChatType = chatType;
    mMyUserId = myUserId;
    mChatId = chatId;
    mSendUtils = new MessageSendUtils();
    if (mConversation == null || mConversation.conversationId() != chatId) {
        BMXDataCallBack<BMXConversation> callBack = (bmxErrorCode, bmxConversation) -> {
            if (BaseManager.bmxFinish(bmxErrorCode) && bmxConversation != null) {
                mConversation = bmxConversation;
                // 设置已读
                if (mConversation.unreadNumber() > 0) {
                    mConversation.setAllMessagesRead(null);
                }
                // 获取草稿
                if (mView != null) {
                    mView.setControlBarText(mConversation.editMessage());
                }
                if (chatType != null && chatType == BMXMessage.MessageType.Single) {
                    initChatData(0);

function type

inline BMXConversation.Type type()

会话类型

Return: [Type]

Example:

if (conversationList == null || conversationList.isEmpty()) {
    return;
}
ListOfLongLong rosterIds = new ListOfLongLong();
ListOfLongLong groupIds = new ListOfLongLong();
for (int i = 0; i < conversationList.size(); i++) {
    BMXConversation conversation = conversationList.get(i);
    if (conversation == null) {
        continue;
    }
    if (conversation.type() == BMXConversation.Type.Single) {
        if (RosterFetcher.getFetcher().getRoster(conversation.conversationId()) == null) {
            rosterIds.add(conversation.conversationId());
        }
    } else if (conversation.type() == BMXConversation.Type.Group) {
        if (RosterFetcher.getFetcher().getGroup(conversation.conversationId()) == null) {
            groupIds.add(conversation.conversationId());
        }
    }

ListOfLongLong groupIds = new ListOfLongLong();
for (int i = 0; i < conversationList.size(); i++) {
    BMXConversation conversation = conversationList.get(i);
    if (conversation == null) {
        continue;
    }
    if (conversation.type() == BMXConversation.Type.Single) {
        if (RosterFetcher.getFetcher().getRoster(conversation.conversationId()) == null) {
            rosterIds.add(conversation.conversationId());
        }
    } else if (conversation.type() == BMXConversation.Type.Group) {
        if (RosterFetcher.getFetcher().getGroup(conversation.conversationId()) == null) {
            groupIds.add(conversation.conversationId());
        }
    }
}
if (!rosterIds.isEmpty()) {
    RosterManager.getInstance().getRosterList(rosterIds, true, (bmxErrorCode, itemList) -> {
        if (BaseManager.bmxFinish(bmxErrorCode)) {
            RosterFetcher.getFetcher().putRosters(itemList);

ShapeImageView avatar = holder.findViewById(R.id.session_avatar);
TextView tvTitle = holder.findViewById(R.id.session_title);
TextView desc = holder.findViewById(R.id.session_desc);
TextView time = holder.findViewById(R.id.session_time);
TextView tvUnReadCount = holder.findViewById(R.id.session_unread_num);
ImageView ivDisturb = holder.findViewById(R.id.session_disturb);

BMXConversation item = getItem(position);
// 是否开启免打扰
boolean isDisturb = false;
BMXConversation.Type type = item == null ? null : item.type();
String name = "";
if (type != null && type == BMXConversation.Type.Single) {
    BMXRosterItem rosterItem = RosterFetcher.getFetcher().getRoster(item.conversationId());
    if (rosterItem != null && !TextUtils.isEmpty(rosterItem.alias())) {
        name = rosterItem.alias();
    } else if (rosterItem != null && !TextUtils.isEmpty(rosterItem.nickname())) {
        name = rosterItem.nickname();
    } else if (rosterItem != null) {
        name = rosterItem.username();

if (conversationList == null || conversationList.isEmpty()) {
    return;
}
ListOfLongLong rosterIds = new ListOfLongLong();
ListOfLongLong groupIds = new ListOfLongLong();
for (int i = 0; i < conversationList.size(); i++) {
    BMXConversation conversation = conversationList.get(i);
    if (conversation == null) {
        continue;
    }
    if (conversation.type() == BMXConversation.Type.Single) {
        if (RosterFetcher.getFetcher().getRoster(conversation.conversationId()) == null) {
            rosterIds.add(conversation.conversationId());
        }
    } else if (conversation.type() == BMXConversation.Type.Group) {
        if (RosterFetcher.getFetcher().getGroup(conversation.conversationId()) == null) {
            groupIds.add(conversation.conversationId());
        }
    }

ListOfLongLong groupIds = new ListOfLongLong();
for (int i = 0; i < conversationList.size(); i++) {
    BMXConversation conversation = conversationList.get(i);
    if (conversation == null) {
        continue;
    }
    if (conversation.type() == BMXConversation.Type.Single) {
        if (RosterFetcher.getFetcher().getRoster(conversation.conversationId()) == null) {
            rosterIds.add(conversation.conversationId());
        }
    } else if (conversation.type() == BMXConversation.Type.Group) {
        if (RosterFetcher.getFetcher().getGroup(conversation.conversationId()) == null) {
            groupIds.add(conversation.conversationId());
        }
    }
}
if (!rosterIds.isEmpty()) {
    RosterManager.getInstance().getRosterList(rosterIds, true, (bmxErrorCode, itemList) -> {
        if (BaseManager.bmxFinish(bmxErrorCode)) {
            RosterFetcher.getFetcher().putRosters(itemList);

function lastMsg

inline BMXMessage lastMsg()

最新消息

Return: BMXMessagePtr

Example:

    isDisturb = rosterItem != null && rosterItem.isMuteNotification();
} else if (type != null && type == BMXConversation.Type.Group) {
    BMXGroup groupItem = RosterFetcher.getFetcher().getGroup(item.conversationId());
    name = groupItem != null ? groupItem.name() : "";
    ChatUtils.getInstance().showGroupAvatar(groupItem, avatar, mGroupConfig);
    isDisturb = groupItem != null && groupItem.msgMuteMode() != null
            && groupItem.msgMuteMode() == BMXGroup.MsgMuteMode.MuteChat;
} else {
    ChatUtils.getInstance().showRosterAvatar(null, avatar, mConfig);
}
BMXMessage lastMsg = item == null ? null : item.lastMsg();
int unReadCount = item == null ? 0 : item.unreadNumber();
if (isDisturb) {
    tvUnReadCount.setVisibility(View.GONE);
    ivDisturb.setVisibility(unReadCount > 0 ? View.VISIBLE : View.GONE);
} else {
    ivDisturb.setVisibility(View.GONE);
    if (unReadCount > 0) {
        tvUnReadCount.setVisibility(View.VISIBLE);
        tvUnReadCount.setText(String.valueOf(unReadCount));

function unreadNumber

inline int unreadNumber()

未读消息数

Return: int32_t

Example:

} else if (type != null && type == BMXConversation.Type.Group) {
    BMXGroup groupItem = RosterFetcher.getFetcher().getGroup(item.conversationId());
    name = groupItem != null ? groupItem.name() : "";
    ChatUtils.getInstance().showGroupAvatar(groupItem, avatar, mGroupConfig);
    isDisturb = groupItem != null && groupItem.msgMuteMode() != null
            && groupItem.msgMuteMode() == BMXGroup.MsgMuteMode.MuteChat;
} else {
    ChatUtils.getInstance().showRosterAvatar(null, avatar, mConfig);
}
BMXMessage lastMsg = item == null ? null : item.lastMsg();
int unReadCount = item == null ? 0 : item.unreadNumber();
if (isDisturb) {
    tvUnReadCount.setVisibility(View.GONE);
    ivDisturb.setVisibility(unReadCount > 0 ? View.VISIBLE : View.GONE);
} else {
    ivDisturb.setVisibility(View.GONE);
    if (unReadCount > 0) {
        tvUnReadCount.setVisibility(View.VISIBLE);
        tvUnReadCount.setText(String.valueOf(unReadCount));
    } else {

    };
    if (chatType != null && chatType == BMXMessage.MessageType.Single) {
        ChatManager.getInstance().openConversation(chatId, BMXConversation.Type.Single,
                true, callBack);
    } else if (chatType != null && chatType == BMXMessage.MessageType.Group) {
        ChatManager.getInstance().openConversation(chatId, BMXConversation.Type.Group, true,
                callBack);
    }
} else {
    // 设置已读
    if (mConversation.unreadNumber() > 0) {
        mConversation.setAllMessagesRead(null);
    }
    // 获取草稿
    if (mView != null) {
        mView.setControlBarText(mConversation.editMessage());
    }
    if (chatType != null && chatType == BMXMessage.MessageType.Single) {
        initChatData(0);

if (mConversation.unreadNumber() > 0) {

function messageCount

inline int messageCount()

会话中所有消息的数量

Return: int32_t

Example:

function isMuteNotification

inline boolean isMuteNotification()

是否提醒用户消息,不提醒的情况下会话总未读数不会统计该会话计数。

Return: bool

Example:

function extension

inline String extension()

扩展信息

Return: JSON(std::string)

Example:

function setExtension

inline BMXErrorCode setExtension(
    String ext
)

设置扩展信息

Parameters:

• ext 会话扩展消息

Return: [BMXErrorCode]

Example:

function editMessage

inline String editMessage()

编辑消息

Return: std::string

Example:

    ivDisturb.setVisibility(View.GONE);
    if (unReadCount > 0) {
        tvUnReadCount.setVisibility(View.VISIBLE);
        tvUnReadCount.setText(String.valueOf(unReadCount));
    } else {
        tvUnReadCount.setVisibility(View.GONE);
    }
}
tvTitle.setText(TextUtils.isEmpty(name) ? "" : name);
time.setText(lastMsg != null ? TimeUtils.millis2StringOnConversationList(mContext, lastMsg.serverTimestamp()) : "");
String draft = item == null ? "" : item.editMessage();
if (!TextUtils.isEmpty(draft)) {
    // 有草稿
    SpannableStringBuilder spannable = new SpannableStringBuilder();
    String draftText = mContext.getString(R.string.draft);
    SpannableString spannableString = new SpannableString(draftText);
    spannableString.setSpan(new ForegroundColorSpan(Color.RED), 0, draftText.length(),
            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    spannable.append(spannableString).append(draft);
    desc.setText(spannable);

        ChatManager.getInstance().openConversation(chatId, BMXConversation.Type.Group, true,
                callBack);
    }
} else {
    // 设置已读
    if (mConversation.unreadNumber() > 0) {
        mConversation.setAllMessagesRead(null);
    }
    // 获取草稿
    if (mView != null) {
        mView.setControlBarText(mConversation.editMessage());
    }
    if (chatType != null && chatType == BMXMessage.MessageType.Single) {
        initChatData(0);
    }
}
UserManager.getInstance().getProfile(false, (bmxErrorCode, bmxUserProfile) -> {
    if (BaseManager.bmxFinish(bmxErrorCode)) {
        myUserName = bmxUserProfile == null ? "" : bmxUserProfile.username();

mView.setControlBarText(mConversation.editMessage());

function setEditMessage

inline BMXErrorCode setEditMessage(
    String editMessage
)

设置编辑消息

Parameters:

• editMessage 会话正在编辑的文本消息

Return: [BMXErrorCode]

Example:

@Override
public void onPause() {
    stopAudio();
    // 聊天页面返回需要更新会话的草稿
    if (mConversation != null) {
        mConversation.setEditMessage(mView == null ? "" : mView.getControlBarText());
    }
    // 同步未读
    readAllMessage();

function searchMessagesByKeyWords

inline BMXErrorCode searchMessagesByKeyWords(
    String keywords,
    long refTime,
    long size,
    BMXMessageList result,
    BMXConversation.Direction arg4
)

搜索消息，如果不指定则从最新消息开始

Parameters:

• keywords 搜索消息的关键字
• refTime 搜索消息的起始时间
• size 最大加载消息条数
• result 搜索到的消息结果列表
• arg4 消息搜索方向，默认（Direction::Up）是从更早的消息中搜索

Return: [BMXErrorCode]

Example:

function searchMessagesByKeyWords

inline BMXErrorCode searchMessagesByKeyWords(
    String keywords,
    long refTime,
    long size,
    BMXMessageList result
)

Example:

function searchMessagesByType

inline BMXErrorCode searchMessagesByType(
    BMXMessage.ContentType type,
    long refTime,
    long size,
    BMXMessageList result,
    BMXConversation.Direction arg4
)

按照类型搜索消息，如果不指定则从最新消息开始

Parameters:

• type 搜索消息的类型
• refTime 搜索消息的起始时间
• size 最大加载消息条数
• result 搜索到的消息结果列表
• arg4 消息搜索方向，默认（Direction::Up）是从更早的消息中搜索

Return: [BMXErrorCode]

Example:

function searchMessagesByType

inline BMXErrorCode searchMessagesByType(
    BMXMessage.ContentType type,
    long refTime,
    long size,
    BMXMessageList result
)

Example:

function setMessagePlayedStatus

inline void setMessagePlayedStatus(
    final BMXMessage msg,
    final boolean status,
    final BMXCallBack callBack
)

设置消息播放状态（只对语音/视频消息有效）

Parameters:

• msg 需要设置播放状态的消息
• status 消息是否已经播放
• callBack 回调

Example:

function setMessageReadStatus

inline void setMessageReadStatus(
    final BMXMessage msg,
    final boolean status,
    final BMXCallBack callBack
)

设置消息未读状态，更新未读消息数

Parameters:

• msg 需要设置消息已读状态的消息
• status 消息是否设置已读
• callBack 回调

Example:

function setAllMessagesRead

inline void setAllMessagesRead(
    final BMXCallBack callBack
)

把所有消息设置为已读，更新未读消息数

Parameters:

• callBack 回调

Example:

    if (chatType != null && chatType == BMXMessage.MessageType.Single) {
        ChatManager.getInstance().openConversation(chatId, BMXConversation.Type.Single,
                true, callBack);
    } else if (chatType != null && chatType == BMXMessage.MessageType.Group) {
        ChatManager.getInstance().openConversation(chatId, BMXConversation.Type.Group, true,
                callBack);
    }
} else {
    // 设置已读
    if (mConversation.unreadNumber() > 0) {
        mConversation.setAllMessagesRead(null);
    }
    // 获取草稿
    if (mView != null) {
        mView.setControlBarText(mConversation.editMessage());
    }
    if (chatType != null && chatType == BMXMessage.MessageType.Single) {
        initChatData(0);
    }

mConversation.setAllMessagesRead(null);

function updateMessageExtension

inline void updateMessageExtension(
    final BMXMessage msg,
    final BMXCallBack callBack
)

更新一条数据库存储消息的扩展字段信息

Parameters:

• msg 需要更改扩展信息的消息此时msg部分已经更新扩展字椴信息
• callBack 回调

Example:

function insertMessage

inline void insertMessage(
    final BMXMessage msg,
    final BMXCallBack callBack
)

插入一条消息

Parameters:

• msg 插入的消息
• callBack 回调

Example:

function loadMessage

inline void loadMessage(
    final long msgId,
    final BMXDataCallBack< BMXMessage > callBack
)

读取一条消息

Parameters:

• msgId 需要读取的消息的消息id
• callBack 回调

Example:

function removeAllMessages

inline void removeAllMessages(
    final BMXCallBack callBack
)

删除会话中的所有消息

Parameters:

• callBack 回调

Example:

function loadMessages

inline void loadMessages(
    final long refMsgId,
    final long size,
    final BMXConversation.Direction arg3,
    final BMXDataCallBack< BMXMessageList > callBack
)

加载消息，如果不指定则从最新消息开始

Parameters:

• refMsgId 加载消息的起始id
• size 最大加载消息条数
• arg3 加载消息的方向，默认是加载更早的消息
• callBack 回调

Example:

mConversation.loadMessages(msgId, MessageConfig.DEFAULT_PAGE_SIZE,

mConversation.loadMessages(msgId, MessageConfig.DEFAULT_PAGE_SIZE,

function loadMessages

inline void loadMessages(
    final long refMsgId,
    final long size,
    final BMXDataCallBack< BMXMessageList > callBack
)

Example:

mConversation.loadMessages(msgId, MessageConfig.DEFAULT_PAGE_SIZE,

mConversation.loadMessages(msgId, MessageConfig.DEFAULT_PAGE_SIZE,

function searchMessages

inline void searchMessages(
    final String keywords,
    final long refTime,
    final long size,
    final BMXConversation.Direction arg4,
    final BMXDataCallBack< BMXMessageList > callBack
)

搜索消息，如果不指定则从最新消息开始

Parameters:

• keywords 搜索消息的关键字
• refTime 搜索消息的起始时间
• size 最大加载消息条数
• arg4 消息搜索方向，默认（Direction::Up）是从更早的消息中搜索
• callBack 回调

Example:

function searchMessages

inline void searchMessages(
    final String keywords,
    final long refTime,
    final long size,
    final BMXDataCallBack< BMXMessageList > callBack
)

Example:

function searchMessages

inline void searchMessages(
    final BMXMessage.ContentType type,
    final long refTime,
    final long size,
    final BMXConversation.Direction arg4,
    final BMXDataCallBack< BMXMessageList > callBack
)

按照类型搜索消息，如果不指定则从最新消息开始

Parameters:

• type 搜索消息的类型
• refTime 搜索消息的起始时间
• size 最大加载消息条数
• arg4 消息搜索方向，默认（Direction::Up）是从更早的消息中搜索
• callBack 回调

Example:

function searchMessages

inline void searchMessages(
    final BMXMessage.ContentType type,
    final long refTime,
    final long size,
    final BMXDataCallBack< BMXMessageList > callBack
)

Example:

function refreshConversation

inline void refreshConversation(
    final BMXCallBack callBack
)

读取数据库当前会话所有消息数量，强制更新conversation的消息总数和未读消息数。

Parameters:

• callBack 回调

Protected Functions Documentation

Example:

function BMXConversation

inline BMXConversation(
    long cPtr,
    boolean cMemoryOwn
)

Example:

function finalize

inline void finalize()

Example:

function getCPtr

static inline long getCPtr(
    BMXConversation obj
)

Example:

Updated on 2022-01-26 at 17:18:31 +0800