环信im Flutter sdk使用帮助

Posted 2022-06-15 环信即时通讯云

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篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了环信im Flutter sdk使用帮助相关的知识，希望对你有一定的参考价值。

文章主要讲解环信im Flutter sdk如何使用。

环信官网
 IMGeek问题反馈

环信iOS集成文档

环信Android集成文档

flutter sdk源码地址: Github
任何问题可以通过 Github Issues 提问

常见问题

前期准备

如果您还没有Appkey，可以前往环信官网注册即时通讯云。

进入console -> 添加应用 -> Appkey 获取Appkey。

通过pubdev集成

修改 pubspec.yaml;
```
dependencies:
im_flutter_sdk: ^3.9.0
```
执行flutter pub get;
导入头文件:

import 'package:im_flutter_sdk/im_flutter_sdk.dart'

通过git集成

修改 pubspec.yaml;

dependencies:
  im_flutter_sdk:  
    git:  
      url: https://github.com/easemob/im_flutter_sdk.git 
      ref: flutter2_stable

执行flutter pub get;
导入头文件:

import 'package:im_flutter_sdk/im_flutter_sdk.dart'

SDK讲解

EMClient 用于管理sdk各个模块和一些账号相关的操作，如注册，登录，退出;
EMChatManager用于管理聊天相关操作，如发送消息，接收消息，发送已读回执，获取会话列表等;
EMContactManager 用于管理通讯录相关操作，如获取通讯录列表，添加好友，删除好友等;
EMGroupManager用于群组相关操作，如获取群组列表，加入群组，离开群组等;
EMChatRoomManager用于管理聊天室，如获取聊天室列表;
EMPushManager用于管理推送配置，如设置推送昵称，推送免打扰时间段等;
EMUserInfoManager用于更新自己的用户属性，设置用户属性，获取其他用户的用户属性等;

EMClient

初始化

var options = EMOptions(appKey: "easemob-demo#easeim");
await EMClient.getInstance.init(options);

环信的推送只针对离线设备，如果您的app只是后台且没有被系统挂起，此时客户端的长连接仍然还在，这时消息仍然会直接走收消息的方法，并不会触发推送，这就要求您在收消息时判断App的状态，并实现本地推送。
推送证书申请上传，安卓端请参考文档第三方推送集成，ios请参考文档APNs推送。

注册

try 
  await EMClient.getInstance.createAccount(username, password);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

客户端注册需要将注册方式设置为开放注册，具体说明请参考文档用户管理。

获取当前登录环信id

String? currentUsername = await EMClient.getInstance.getCurrentUsername();

退出

try 
  await EMClient.getInstance.logout(true);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

退出也有失败的情况，需要确定是否失败。
注册环信id详细说明请参考文档用户体系集成。

UI 监听

当UI已经准备好后，需要主动调用该方法，调用之后，EMContactManagerListener、 EMGroupEventListener 、 EMChatRoomEventListener 回调才会开始执行。

EMClient.getInstance.startCallback();

监听服务器连接状态

class _PageState extends State<Page> implements EMConnectionListener 
  @override
  void initState() 
    super.initState();
    EMClient.getInstance.addConnectionListener(this);
  

  @override
  Widget build(BuildContext context) 
    return Container();
  

  @override
  void onConnected() 

  @override
  void onDisconnected(int? errorCode) 

  @override
  void onTokenDidExpire() 

  @override
  void onTokenWillExpire() 

  @override
  void dispose() 
    EMClient.getInstance.removeConnectionListener(this);
    super.dispose();

获取当前连接状态

bool isConnected = await EMClient.getInstance.isConnected();

EMChatManager

获取会话列表

List<EMConversation> conversations = await EMClient.getInstance.chatManager.loadAllConversations();

会话列表是存在本地的一种消息管理对象，如果您会话中没有消息，则表示会话不存在。

获取会话

EMConversation? conversation = await EMClient.getInstance.chatManager.getConversation(conversationId);

获取会话，如果会话目前不存在会创建。

获取会话中的消息

List<EMMessage>? messages = await conversation.loadMessages();

获取会话中未读消息数

int unreadCount = await conversation.unreadCount();

设置单条消息为已读

await conversation.markMessageAsRead(messageId);

设置所有消息为已读

await conversation.markAllMessagesAsRead();

发送消息已读状态

try 
  await EMClient.getInstance.chatManager.sendMessageReadAck(message);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

删除会话中的消息

await conversation.deleteAllMessages();

插入消息

await conversation.insertMessage(message);

SDK在您发送和接收消息(cmd类型消息除外)后会自动将消息插入数据库中，并不需要您自己将消息插入数据库，但如果您需要自己插入一条消息时可以调用该api。

更新消息

await conversation.updateMessage(message);

删除消息

await conversation.deleteMessage(messageId);

删除会话

await EMClient.getInstance.chatManager.deleteConversation(conversationId);

构建要发送的消息

// 文本消息
EMMessage msg = EMMessage.createTxtSendMessage(username: '接收方id', content: '消息内容');

// 图片消息
EMMessage msg = EMMessage.createImageSendMessage(username: '接收方id', filePath: '图片路径');

// 视频消息
EMMessage msg = EMMessage.createVideoSendMessage(username: '接收方id', filePath: '视频路径');

// 音频消息
EMMessage msg = EMMessage.createVoiceSendMessage(username: '接收方id', filePath: '语音路径');

// 位置消息
EMMessage msg = EMMessage.createLocationSendMessage(username: '接收方id', latitude: '纬度', longitude: '经度', address: '地址名称');

// cmd消息
EMMessage msg = EMMessage.createCmdSendMessage(username: '接收方id', action: '自定义事件');

// 自定义消息
EMMessage msg = EMMessage.createCustomSendMessage(username: '接收方id', event: '自定义事件');

如果您是要构建群组或者聊天室消息，需要修改消息的chatType属性, 如:
msg.chatType = EMMessageChatType.GroupChat;

发送消息

try 
  await EMClient.getInstance.chatManager.sendMessage(message);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

监听消息发送状态

message.setMessageStatusCallBack(MessageStatusCallBack(
  onError: (error) => ,
  onProgress: (progress) => ,
  onSuccess: () => ,
));

重发消息

try 
  await EMClient.getInstance.chatManager.resendMessage(message);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

撤回消息

try 
  await EMClient.getInstance.chatManager.recallMessage(messageId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

消息撤回为增值服务，您只能撤回2分钟内的消息，如需开通，请咨询商务。

收消息监听

class _PageState extends State<Page> implements EMChatManagerListener 
  @override
  void initState() 
    super.initState();
    EMClient.getInstance.chatManager.addChatManagerListener(this);
  

  @override
  Widget build(BuildContext context) 
    return Container();
  

  @override
  void dispose() 
    EMClient.getInstance.chatManager.removeChatManagerListener(this);
    super.dispose();
  

  @override
  void onCmdMessagesReceived(List<EMMessage> messages) 

  @override
  void onConversationRead(String from, String to) 

  @override
  void onConversationsUpdate() 

  @override
  void onGroupMessageRead(List<EMGroupMessageAck> groupMessageAcks) 

  @override
  void onMessagesDelivered(List<EMMessage> messages) 

  @override
  void onMessagesRead(List<EMMessage> messages) 

  @override
  void onMessagesRecalled(List<EMMessage> messages) 

  @override
  void onMessagesReceived(List<EMMessage> messages)

从服务器拉取会话列表

try 
  List<EMConversation>? conversations = await EMClient.getInstance.chatManager.getConversationsFromServer();
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

会话列表漫游为增值服务，需要单独开通。

从服务器拉取消息

try 
  EMCursorResult<EMMessage?> result = await EMClient.getInstance.chatManager.fetchHistoryMessages(conversationId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

消息漫游为增值服务，需要单独开通。

EMContactManager

从服务器获取通讯录中的用户列表

try 
  List<String> contacts =
      await EMClient.getInstance.contactManager.getAllContactsFromServer();
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

环信收发消息并不需要对方是您通讯录中的成员，只要知道对方的环信id就可以发送消息。

发送添加申请

try 
  await EMClient.getInstance.contactManager.addContact(userId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

添加申请不会发推送，如果用户不在线，等上线后会收到。

删除通讯录中的成员

try 
  await EMClient.getInstance.contactManager.deleteContact(userId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

从服务器获取黑名单

try 
  List<String>blockList = await EMClient.getInstance.contactManager.getBlockListFromServer();
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

添加用户到黑名单中

try 
  await EMClient.getInstance.contactManager.addUserToBlockList(userId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

黑名单和通讯录是独立的，被添加人不需要在您的通讯录中，如果是通讯录中成员被加入到黑名单后，他仍然会出现在您的通讯录名单中，同时他也会出现在您的黑名单中。被添加到黑名单后，您双方均无法收发对方的消息。

将用户从黑名单中删除

try 
  await EMClient.getInstance.contactManager.removeUserFromBlockList(userId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

通讯录监听

如果想要收到 EMContactManagerListener 回调,需要先调用 EMClient.getInstance.startCallback(); 方法。

class _PageState extends State<Page> implements EMContactManagerListener 
  @override
  void initState() 
    super.initState();
    EMClient.getInstance.contactManager.addContactListener(this);
  

  @override
  Widget build(BuildContext context) 
    return Container();
  

  @override
  void dispose() 
    EMClient.getInstance.contactManager.removeContactListener(this);
    super.dispose();
  

  @override
  void onContactAdded(String userName) 

  

  @override
  void onContactDeleted(String? userName) 

  

  @override
  void onContactInvited(String userName, String? reason) 

  

  @override
  void onFriendRequestAccepted(String userName) 

  

  @override
  void onFriendRequestDeclined(String userName)

同意添加申请

try 
  await EMClient.getInstance.contactManager.acceptInvitation(userId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

拒绝添加申请

try 
  await EMClient.getInstance.contactManager.declineInvitation(userId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

EMGroupManager

从服务器获取已加入群组列表

try 
  List<EMGroup> groups = await EMClient.getInstance.groupManager.fetchJoinedGroupsFromServer();
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

从缓存中获取已加入群组列表

try 
  List<EMGroup> groups = await EMClient.getInstance.groupManager.getJoinedGroups();
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

从服务器获取公开群组列表

try 
  EMCursorResult<EMGroup> groups = await EMClient.getInstance.groupManager.fetchPublicGroupsFromServer();
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

创建群组

try 
  EMGroup group = await EMClient.getInstance.groupManager
      .createGroup(options: EMGroupOptions(), groupName: groupName);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

EMGroupOptions可以对群类型EMGroupStyle等参数进行设置，群组有四种，分别是:
PrivateOnlyOwnerInvite私有群，只有群主和管理员能邀请他人进群，被邀请人会收到邀请信息，同意后可入群;
PrivateMemberCanInvite私有群，所有人都可以邀请他人进群，被邀请人会收到邀请信息，同意后可入群;
PublicJoinNeedApproval公开群，可以通过获取公开群列表api取的，申请加入时需要群主或管理员同意;
PublicOpenJoin公开群，可以通过获取公开群列表api取，可以直接进入;

获取群组详情

try 
  EMGroup group = await EMClient.getInstance.groupManager.fetchGroupInfoFromServer(groupId)
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

获取群成员列表

try 
  EMCursorResult<String> result = await EMClient.getInstance.groupManager.fetchMemberListFromServer(groupId)
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

加入公开群组

try 
  await EMClient.getInstance.groupManager.joinPublicGroup(groupId)
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

需要群组类型是PublicOpenJoin ,调用后直接加入群组。

申请加入公开群

try 
  await EMClient.getInstance.groupManager.requestToJoinPublicGroup(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

需要群组类型是PublicJoinNeedApproval,申请后，群主和管理员会收到加群邀请，同意后入群。

邀请用户入群

try 
  await EMClient.getInstance.groupManager.inviterUser(groupId, members);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

需要群组类型是PrivateOnlyOwnerInvite或PrivateMemberCanInvite,
PrivateOnlyOwnerInvite时，群主和管理员可以调用；
`PrivateMemberCanInvite 时，群中任何人都可以调用；
被邀请方会收到邀请通知，同意后进群。邀请通知并不会以推送的形式发出，如果用户不在线，等上线后会收到，用户同意后入群。

try 
  await EMClient.getInstance.groupManager.addMembers(groupId, members);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

需要群组类型是PublicJoinNeedApproval 或 PublicOpenJoin，

PublicJoinNeedApproval时,被邀请人同意后会进群；

从群组中移除用户

try 
  await EMClient.getInstance.groupManager.removeMembers(groupId, members);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

群主和管理员可以调用。

添加管理员

try 
  await EMClient.getInstance.groupManager.addAdmin(groupId, memberId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

群主可以调用。被操作人会收到被添加为管理员回调，该回调无推送，如用户不在线，上线后会收到。

移除管理员

try 
  await EMClient.getInstance.groupManager.removeAdmin(groupId, memberId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

群主可以调用。被操作人会收到被移除管理员回调，该回调无推送，如用户不在线，上线后会收到。

退出群组

try 
  await EMClient.getInstance.groupManager.leaveGroup(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

解散群组

try 
  await EMClient.getInstance.groupManager.destroyGroup(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

只有群主可以调用。

转移群组

try 
  await EMClient.getInstance.groupManager.changeOwner(groupId, newOwnerId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

只有群主可以调用。

获取群组黑名单列表

try 
  List<String>? blockList = await EMClient.getInstance.groupManager.fetchBlockListFromServer(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

将群成员添加到群黑名单

try 
  await EMClient.getInstance.groupManager.blockMembers(groupId, members);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

该方法只有群主和管理员可以调用，被操作用户当前必须是群成员，当用户被加入到群黑名单后，该用户将从群成员中移除并加入到当前群的黑名单中。同时该用户将无法再进入该群。

将用户从黑名单移除

try 
  await EMClient.getInstance.groupManager.unblockMembers(groupId, members);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

该方法只有群主和管理员可以调用，当账号从黑名单中移除后可以再允许申请加群。

获取群禁言列表

try 
  List<String>? list = await EMClient.getInstance.groupManager
      .fetchMuteListFromServer(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

对成员禁言

try 
  await EMClient.getInstance.groupManager.muteMembers(groupId, members);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

该方法只有群主和管理员可以调用，被禁言的用户仍然可以收到群中的消息，但是无法发出消息，白名单中的用户即使被加入到禁言列表中也不受影响。

对成员解除禁言

try 
  await EMClient.getInstance.groupManager.unMuteMembers(groupId, members);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

该方法只有群主和管理员可以调用。

对所有成员禁言

try 
  await EMClient.getInstance.groupManager.muteAllMembers(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

该方法只有群主和管理员可以调用，对群主，管理员，白名单中的成员无效，且针对所有人的禁言操作与muteMembers、unMuteMembers接口不冲突，该接口的操作并不会导致getGroupMuteListFromServer接口的返回的数据变化。

对所有成员解除禁言

try 
  await EMClient.getInstance.groupManager.unMuteAllMembers(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

该方法只有群主和管理员可以调用，且针对所有人的解除禁言操作与muteMembers、unMuteMembers接口不冲突，该接口的操作并不会导致getGroupMuteListFromServer接口的返回的数据变化。当调用该方法后，之前在禁言列表中的用户仍在禁言列表中，且仍处于禁言状态。

获取白名单列表

try 
  List<String>? list = await EMClient.getInstance.groupManager.fetchWhiteListFromServer(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

将用户添加到白名单中

try 
  await EMClient.getInstance.groupManager.addWhiteList(groupId, members);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

该方法只有群主和管理员可以调用，当用户被加入到白名单后，当群组全部禁言或者被添加到禁言列表后仍可以发言。

将用户从白名单中移除

try 
  await EMClient.getInstance.groupManager.removeWhiteList(groupId, members);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

该方法只有群主和管理员可以调用。

判断自己是否在白名单中

try 
  bool inWhiteList = await EMClient.getInstance.groupManager.isMemberInWhiteListFromServer(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

不接收群消息

try 
  await EMClient.getInstance.groupManager.blockGroup(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

设置后群组中的所有消息都无法收到，用户不在线时也不会有推送告知。

恢复接收群消息

try 
  await EMClient.getInstance.groupManager.unblockGroup(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

消息免打扰

try 
  await EMClient.getInstance.pushManager.updatePushServiceForGroup(
      groupIds: groupIds, enablePush: false);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

设置后用户在线时可以正常接收群消息，当用户不在线时，该群组有新消息时不会有推送告知。

更新群名称

try 
  await EMClient.getInstance.groupManager.changeGroupName(groupId, newName);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

群主或管理员可以调用。

更新群描述

try 
  await EMClient.getInstance.groupManager.changeGroupDescription(groupId, newDesc);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

群主或管理员可以调用。

获取群组公告

try 
  String? announcement =await EMClient.getInstance.groupManager.fetchAnnouncementFromServer(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

更新群公告

try 
  await EMClient.getInstance.groupManager.updateGroupAnnouncement(groupId, newAnnouncement);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

群主或管理员可以调用。

获取群共享文件列表

try 
  List<EMGroupSharedFile> fileList =await EMClient.getInstance.groupManager.fetchGroupFileListFromServer(groupId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

上传群共享文件

try 
  await EMClient.getInstance.groupManager.uploadGroupSharedFile(groupId, filePath);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

下载群共享文件

try 
  await EMClient.getInstance.groupManager.downloadGroupSharedFile(groupId, filePath, savePath);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

删除群共享文件

try 
  await EMClient.getInstance.groupManager.removeGroupSharedFile(groupId, fileId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

群主，管理员，文件上传者可以调用。

群回调监听

如果想要收到 EMGroupEventListener 回调,需要先调用 EMClient.getInstance.startCallback(); 方法。

class _PageState extends State<Page> implements EMGroupEventListener 
  @override
  void initState() 
    super.initState();
    EMClient.getInstance.groupManager.addGroupChangeListener(this);
  

  @override
  Widget build(BuildContext context) 
    return Container();
  

  @override
  void dispose() 
    EMClient.getInstance.groupManager.removeGroupChangeListener(this);
    super.dispose();
  

  @override
  void onAdminAddedFromGroup(String groupId, String admin) 

  @override
  void onAdminRemovedFromGroup(String groupId, String admin) 

  @override
  void onAllGroupMemberMuteStateChanged(String groupId, bool isAllMuted) 

  @override
  void onAnnouncementChangedFromGroup(String groupId, String announcement) 

  @override
  void onAutoAcceptInvitationFromGroup(
      String groupId, String inviter, String? inviteMessage) 

  @override
  void onGroupDestroyed(String groupId, String? groupName) 

  @override
  void onInvitationAcceptedFromGroup(
      String groupId, String invitee, String? reason) 

  @override
  void onInvitationDeclinedFromGroup(
      String groupId, String invitee, String? reason) 

  @override
  void onInvitationReceivedFromGroup(
      String groupId, String? groupName, String inviter, String? reason) 

  @override
  void onMemberExitedFromGroup(String groupId, String member) 

  @override
  void onMemberJoinedFromGroup(String groupId, String member) 

  @override
  void onMuteListAddedFromGroup(
      String groupId, List<String> mutes, int? muteExpire) 

  @override
  void onMuteListRemovedFromGroup(String groupId, List<String> mutes) 

  @override
  void onOwnerChangedFromGroup(
      String groupId, String newOwner, String oldOwner) 

  @override
  void onRequestToJoinAcceptedFromGroup(
      String groupId, String? groupName, String accepter) 

  @override
  void onRequestToJoinDeclinedFromGroup(
      String groupId, String? groupName, String decliner, String? reason) 

  @override
  void onRequestToJoinReceivedFromGroup(
      String groupId, String? groupName, String applicant, String? reason) 

  @override
  void onSharedFileAddedFromGroup(
      String groupId, EMGroupSharedFile sharedFile) 

  @override
  void onSharedFileDeletedFromGroup(String groupId, String fileId) 

  @override
  void onUserRemovedFromGroup(String groupId, String? groupName) 

  @override
  void onWhiteListAddedFromGroup(String groupId, List<String> members) 

  @override
  void onWhiteListRemovedFromGroup(String groupId, List<String> members)

同意加群申请

try 
  await EMClient.getInstance.groupManager.acceptJoinApplication(groupId, userId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

群主和管理员可以调用。

拒绝加群申请

try 
  await EMClient.getInstance.groupManager.declineJoinApplication(groupId, userId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

群主和管理员可以调用。

同意加群邀请

try 
  await EMClient.getInstance.groupManager.acceptInvitation(groupId, userId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

拒绝加群邀请

try 
  await EMClient.getInstance.groupManager.declineInvitation(groupId, userId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

EMChatRoomManager

从服务器获取聊天室列表

try 
  EMPageResult<EMChatRoom> result = await EMClient.getInstance.chatRoomManager.fetchPublicChatRoomsFromServer();
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

创建聊天室

try 
  EMChatRoom room = await EMClient.getInstance.chatRoomManager.createChatRoom(subject);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

聊天室创建需要单独拥有权限，具体可以参考文档聊天室管理。

加入聊天室

try 
  await EMClient.getInstance.chatRoomManager.joinChatRoom(roomId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

离开聊天室

try 
  await EMClient.getInstance.chatRoomManager.leaveChatRoom(roomId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

销毁聊天室

try 
  await EMClient.getInstance.chatRoomManager.destroyChatRoom(roomId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

聊天室销毁需要单独拥有权限，具体可以参考文档聊天室管理。

转移聊天室

try 
  await EMClient.getInstance.chatRoomManager.changeOwner(roomId, newOwnerId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

聊天室转移需要单独拥有权限，具体可以参考文档聊天室管理。

获取聊天室详情

try 
  EMChatRoom room =await EMClient.getInstance.chatRoomManager.fetchChatRoomInfoFromServer(roomId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

获取聊天室成员

try 
  EMCursorResult<String> result = await EMClient.getInstance.chatRoomManager.fetchChatRoomMembers(roomId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

移除聊天室成员

try
  await EMClient.getInstance.roomManager.removeChatRoomMembers(roomId, membersList);
 on EMError catch(e) 
  print('操作失败，原因是: $e');

创建者或管理员调用。

添加管理员

try 
  await EMClient.getInstance.chatRoomManager.addChatRoomAdmin(roomId, memberId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

创建者调用，被操作者会收到回调。

移除管理员

try 
  await EMClient.getInstance.chatRoomManager.removeChatRoomAdmin(roomId, AdminId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

创建者调用，被操作者会收到回调。

获取禁言列表

try 
  List<String>? list =await EMClient.getInstance.chatRoomManager.fetchChatRoomMuteList(roomId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

设置禁言

try 
  await EMClient.getInstance.chatRoomManager.muteChatRoomMembers(roomId, memberIds);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

创建者或者管理员调用。

解除禁言

try 
  await EMClient.getInstance.chatRoomManager.unMuteChatRoomMembers(roomId, memberIds);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

创建者或者管理员调用。

获取黑名单列表

try 
  List<String>? list = await EMClient.getInstance.chatRoomManager.fetchChatRoomBlockList(roomId);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

添加黑名单

try 
  await EMClient.getInstance.chatRoomManager.blockChatRoomMembers(roomId, memberIds);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

创建者或管理员调用。

移除黑名单

try 
  await EMClient.getInstance.chatRoomManager.unBlockChatRoomMembers(roomId, memberIds);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

创建者或管理员调用。

修改聊天室标题

try 
  await EMClient.getInstance.chatRoomManager.changeChatRoomSubject(roomId, newSubject);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

创建者或管理员调用。

修改聊天室描述

try
  await EMClient.getInstance.roomManager.changeChatRoomDescription(roomId, desc);
 on EMError catch(e) 
  print('操作失败，原因是: $e');

创建者或管理员调用。

获取聊天室公告

try 
  await EMClient.getInstance.chatRoomManager.changeChatRoomDescription(omId, newDesc);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

修改聊天室公告

try 
  await EMClient.getInstance.chatRoomManager.updateChatRoomAnnouncement(chatRoomId, newAnnouncement);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

创建者或管理员调用

添加聊天室监听

如果想要收到 EMChatRoomEventListener 回调,需要先调用 EMClient.getInstance.startCallback(); 方法。

class _PageState extends State<Page> implements EMChatRoomEventListener 
  @override
  void initState() 
    super.initState();
    EMClient.getInstance.chatRoomManager.addChatRoomChangeListener(this);
  

  @override
  Widget build(BuildContext context) 
    return Container();
  

  @override
  void dispose() 
    EMClient.getInstance.chatRoomManager.removeChatRoomListener(this);
    super.dispose();
  

  @override
  void onAdminAddedFromChatRoom(String roomId, String admin) 

  @override
  void onAdminRemovedFromChatRoom(String roomId, String admin) 

  @override
  void onAllChatRoomMemberMuteStateChanged(String roomId, bool isAllMuted) 

  @override
  void onAnnouncementChangedFromChatRoom(String roomId, String announcement) 

  @override
  void onChatRoomDestroyed(String roomId, String? roomName) 

  @override
  void onMemberExitedFromChatRoom(
      String roomId, String? roomName, String participant) 

  @override
  void onMemberJoinedFromChatRoom(String roomId, String participant) 

  @override
  void onMuteListAddedFromChatRoom(
      String roomId, List<String> mutes, String? expireTime) 

  @override
  void onMuteListRemovedFromChatRoom(String roomId, List<String> mutes) 

  @override
  void onOwnerChangedFromChatRoom(
      String roomId, String newOwner, String oldOwner) 

  @override
  void onRemovedFromChatRoom(
      String roomId, String? roomName, String? participant) 

  @override
  void onWhiteListAddedFromChatRoom(String roomId, List<String> members) 

  @override
  void onWhiteListRemovedFromChatRoom(String roomId, List<String> members)

推送

设置推送昵称

try 
  await EMClient.getInstance.pushManager.updatePushNickname(pushDisplayName);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

推送昵称是指当前账号给其他用户发消息，对方不在线，收到推送时显示在推送中的名字，如果没设置，将显示环信id。

从服务器获取推送配置

try 
  EMPushConfigs configs = await EMClient.getInstance.pushManager.fetchPushConfigsFromServer();
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

从本地缓存获取推送配置

EMPushConfigs? configs = await EMClient.getInstance.pushManager.getPushConfigsFromCache();

设置推送显示样式

try 
  await EMClient.getInstance.pushManager.updatePushDisplayStyle(DisplayStyle.Simple);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

DisplayStyle是收推送时样式，目前有两种样式：
Simple显示“您有一条新消息”;
Summary显示推送详情;

设置消息免打扰

try 
  await EMClient.getInstance.pushManager.disableOfflinePush(start: 10, end: 22);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

10点到22点之间不接收消息推送。如果是全天不想接收推送，可以设置时间为0到24。

关闭消息免打扰

try 
  await EMClient.getInstance.pushManager.enableOfflinePush();
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

设置群组免打扰

try 
  await EMClient.getInstance.pushManager.updatePushServiceForGroup(groupIds: groupIds, enablePush: false);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

获取免打扰群组列表

List<String> list = await EMClient.getInstance.pushManager.getNoPushGroupsFromCache();

设置用户免打扰

try 
  await EMClient.getInstance.pushManager.updatePushServiceFroUsers(userIds: userIds, enablePush: false);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

获取免打扰用户列表

List<String> list = await EMClient.getInstance.pushManager.getNoPushUsersFromCache();

EMUserInfoManager

更新自己的用户属性

String? currentUser = await EMClient.getInstance.getCurrentUsername();
if (currentUser == null) 
  return;

try 
  EMUserInfo userInfo = EMUserInfo(currentUser);
  userInfo = userInfo.copyWith(nickName: nickname, avatarUrl: avatarUrl);
  await EMClient.getInstance.userInfoManager.updateOwnUserInfo(userInfo);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

获取多用户的用户属性

try 
  Map<String, EMUserInfo> map = await EMClient.getInstance.userInfoManager.fetchUserInfoById(userIds);
 on EMError catch (e) 
  debugPrint("error code: $e.code, desc: $e.description");

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