李洪强iOS开发之-环信02.1_环信 SDK 2.x到3.0升级文档
SDK 2.x 至 3.0 升级指南
环信 SDK 3.0 升级文档
3.0 中的核心类为 EMClient 类，通过 EMClient 类可以获取到 chatManager、groupManager、contactManager、roomManager对象。原来 2.0 版本的 SDK 很多方法提供了同步、异步回调、异步（block）三种方法，3.0 版只提供同步方法（async开头的方法为异步方法）。
例如：
//2.0版本登录方法，提供了同步、异步、异步block三种方法
- (NSDictionary *)loginWithUsername:(NSString *)username
password:(NSString *)password
error:(EMError **)pError;
- (void)asyncLoginWithUsername:(NSString *)username
password:(NSString *)password;
- (void)asyncLoginWithUsername:(NSString *)username
password:(NSString *)password
completion:(void (^)(NSDictionary *loginInfo, EMError *error))completion
onQueue:(dispatch_queue_t)aQueue;
//3.0版本，网络请求的方法只提供了同步方法
- (EMError *)loginWithUsername:(NSString *)aUsername
password:(NSString *)aPassword;
注册回调，3.0 SDK 对功能进行了模块化，将不同功能回调封装到不同模块。
//2.0版本回调注册
[[EaseMob sharedInstance].chatManager addDelegate:self delegateQueue:nil];
//3.0版本回调注册需要分模块注册
[[EMClient sharedClient] addDelegate:self delegateQueue:nil];//登录相关的回调
[[EMClient sharedClient].groupManager addDelegate:self delegateQueue:nil];//群组回调
[[EMClient sharedClient].contactManager addDelegate:self delegateQueue:nil];//联系人回调
[[EMClient sharedClient].roomManager addDelegate:self delegateQueue:nil];//聊天室回调
[[EMClient sharedClient].chatManager addDelegate:self delegateQueue:nil];//消息回调
使用升级替换脚本
3.0 升级辅助工具（替换枚举、属性、方法名称等）：
python EMReplace.py replacePath
xcode 编译提示工具：
//1. Xcode->build Phases
//2. 添加一个新的Run Script
//3. 填写脚本：python ${路径}/EMChecker.py
//编译运行会有提示
代码升级替换文档
3.0 SDK 大部分代码与 2.0 SDK 比较，逻辑没有变化，为了统一修改了名称。2.0 版本提供的异步方法，对应的回调 3.0 不再支持（注意：3.0 只提供同步方法）。
入口的变化，2.0 版本 [EaseMob shareInstance] → 3.0 版本 [EMClient sharedClient]。
| 2.0版本 | 3.0版本 |
|---|---|
| 登录相关 | |
| 2.0版本，当前登录的用户信息 [[[EaseMob sharedInstance] chatManager] loginInfo] | 3.0版本，只提供当前登录账号 [[EMClient sharedClient] currentUsername] |
| 2.0版本，当前是否已有登录的用户 [[[EaseMob sharedInstance] chatManager] isLoggedIn] | 3.0版本 [[EMClient sharedClient] isLoggedIn] |
| 2.0版本，是否连上聊天服务器 [[[EaseMob sharedInstance] chatManager] isConnected] | 3.0版本 [[EMClient sharedClient] isConnected] |
| 2.0版本，将数据库数据导入新的数据库 [[EaseMob sharedInstance].chatManager importDataToNewDatabase] | 3.0版本，升级到SDK 3.0版本需要调用该方法，开发者需要等该方法执行完后再进行数据库查询操作 [[EMClient sharedClient] dataMigrationTo3] |
| 2.0版本，从数据库获取信息 [[EaseMob sharedInstance].chatManager loadDataFromDatabase] | 3.0版本不再支持 |
| 2.0版本，在聊天服务器上创建账号 - (BOOL)registerNewAccount:(NSString *)username password:(NSString *)password error:(EMError **)pError; - (void)asyncRegisterNewAccount:(NSString *)username password:(NSString *)password; - (void)asyncRegisterNewAccount:(NSString *)username password:(NSString *)password withCompletion:(void (^)(NSString *username,NSString *password,EMError *error))completion onQueue:(dispatch_queue_t)aQueue; | 3.0版本，只提供同步方法 EMError *error = [[EMClient sharedClient] registerWithUsername:@"username"password:@"password"] |
| 2.0版本，使用用户名密码登录聊天服务器 - (NSDictionary *)loginWithUsername:(NSString *)username password:(NSString *)password error:(EMError **)pError - (void)asyncLoginWithUsername:(NSString *)username password:(NSString *)password; - (void)asyncLoginWithUsername:(NSString *)username password:(NSString *)password completion:(void (^)(NSDictionary *loginInfo, EMError *error))completion onQueue:(dispatch_queue_t)aQueue | 3.0版本，只提供同步方法 - (EMError *)loginWithUsername:(NSString *)aUsername password:(NSString *)aPassword //调用方法:EMError *error = [[EMClient sharedClient] loginWithUsername:@"username" password:@"password"] |
| 2.0版本，注销当前登录用户 - (NSDictionary *)logoffWithUnbindDeviceToken:(BOOL)isUnbind error:(EMError **)pError; - (void)asyncLogoffWithUnbindDeviceToken:(BOOL)isUnbind; - (void)asyncLogoffWithUnbindDeviceToken:(BOOL)isUnbind completion:(void (^)(NSDictionary *info, EMError *error))completion onQueue:(dispatch_queue_t)aQueue; | 3.0版本，只提供同步方法 - (EMError *)logout:(BOOL)bIsUnbindDeviceToken; //调用方法:EMError *error = [[EMClient sharedClient] logout:NO]; |
| 登录回调 | |
| 2.0版本->EMChatManagerLoginDelegate | 3.0版本->EMClientDelegate |
| 用户将要进行自动登录操作的回调 - (void)willAutoLoginWithInfo:(NSDictionary *)loginInfo error:(EMError *)error; 用户登录后的回调 - (void)didLoginWithInfo:(NSDictionary *)loginInfo error:(EMError *)error; 用户注销后的回调 - (void)didLogoffWithError:(EMError *)error; 注册新用户后的回调 - (void)didRegisterNewAccount:(NSString *)username password:(NSString *)password error:(EMError *)error; | 3.0版本不再支持的回调 |
| 2.0版本，用户自动登录完成后的回调 - (void)didAutoLoginWithInfo:(NSDictionary *)loginInfo error:(EMError *)error; | 3.0版本使用EMClientDelegate - (void)didAutoLoginWithError:(EMError *)error; |
| 2.0版本,当前登录账号在其它设备登录时的通知回调 - (void)didLoginFromOtherDevice; 2.0版本,当前登录账号已经被从服务器端删除 - (void)didRemovedFromServer; | 3.0版本使用EMClientDelegate，回调行为与2.0保持一致 |
| 2.0版本，将要发起自动重连操作的回调 - (void)willAutoReconnect; 自动重连操作完成后的回调 - (void)didAutoReconnectFinishedWithError:(NSError *)error; | 3.0版本使用EMClientDelegate - (void)didConnectionStateChanged:(EMConnectionState)connectionState; |
| 消息相关 | |
| 2.0版本IChatManagerChat | 3.0版本IEMChatManager |
| 2.0版本，发送消息的方法 - (EMMessage *)sendMessage:(EMMessage *)message progress:(id)progress error:(EMError **)pError; - (EMMessage *)asyncSendMessage:(EMMessage *)message progress:(id)progress; - (EMMessage *)asyncSendMessage:(EMMessage *)message progress:(id)progress prepare:(void (^)(EMMessage *message, EMError *error))prepare onQueue:(dispatch_queue_t)aPrepareQueue completion:(void (^)(EMMessage *message, EMError *error))completion onQueue:(dispatch_queue_t)aCompletionQueue; | 3.0版本 - (void)asyncSendMessage:(EMMessage *)aMessage progress:(void (^)(int progress))aProgress completion:(void (^)(EMMessage *message, EMError *error))aProgressCompletion; //调用： //[[EMClient sharedClient].chatManager asyncSendMessage:message progress:nil completion:^(EMMessage *aMessage, EMError *aError) {}]; |
| 2.0版本，发送一个"已读消息"（在UI上显示了或者阅后即焚的销毁的时候发送）的回执到服务器 - (void)sendReadAckForMessage:(EMMessage *)message; | 3.0版本 - (void)asyncSendReadAckForMessage:(EMMessage *)message; //调用： //[[EMClient sharedClient].chatManager asyncSendReadAckForMessage:message]; |
| 2.0版本，重新发送某一条消息 - (EMMessage *)resendMessage:(EMMessage *)message progress:(id)progress error:(EMError **)pError; - (EMMessage *)asyncResendMessage:(EMMessage *)message progress:(id)progress; - (EMMessage *)asyncResendMessage:(EMMessage *)message progress:(id)progress prepare:(void (^)(EMMessage *message, EMError *error))prepare onQueue:(dispatch_queue_t)aPrepareQueue completion:(void (^)(EMMessage *message, EMError *error))completion onQueue:(dispatch_queue_t)aCompletionQueue; | 3.0版本 */ - (void)asyncResendMessage:(EMMessage *)aMessage progress:(void (^)(int progress))aProgressCompletion completion:(void (^)(EMMessage *message, EMError *error))aCompletion; //调用: //[[EMClient sharedClient].chatManager asyncResendMessage:message progress:nil completion:^(EMMessage *aMessage, EMError *aError) {}]; |
| 聊天室相关 | |
| 2.0版本 | 3.0版本 |
| 2.0版本，聊天室的主题 @property (nonatomic, strong, readonly) NSString *chatroomSubject; | 3.0版本 @property (nonatomic, copy, readonly) NSString *subject; |
| 2.0版本，聊天室的描述 @property (nonatomic, strong, readonly) NSString *chatroomDescription; | 3.0版本 @property (nonatomic, copy, readonly) NSString *description; |
| 2.0版本，聊天室的最大人数 @property (nonatomic, readonly) NSInteger chatroomMaxOccupantsCount; | 3.0版本 @property (nonatomic, readonly) NSInteger maxOccupantsCount; |
| 群组相关 | |
| 2.0版本 | 3.0版本 |
| 2.0版本，从数据库获取与登录者相关的群组 - (NSArray *)loadAllMyGroupsFromDatabaseWithAppend2Chat:(BOOL)append2Chat; | 3.0版本 - (NSArray *)loadAllMyGroupsFromDB; //调用:[[EMClient sharedClient].groupManager loadAllMyGroupsFromDB]; |
| 2.0版本，创建群组 - (EMGroup *)createGroupWithSubject:(NSString *)subject description:(NSString *)description invitees:(NSArray *)invitees initialWelcomeMessage:(NSString *)welcomeMessage styleSetting:(EMGroupStyleSetting *)styleSetting error:(EMError **)pError; - (void)asyncCreateGroupWithSubject:(NSString *)subject description:(NSString *)description invitees:(NSArray *)invitees initialWelcomeMessage:(NSString *)welcomeMessage styleSetting:(EMGroupStyleSetting *)styleSetting; - (void)asyncCreateGroupWithSubject:(NSString *)subject description:(NSString *)description invitees:(NSArray *)invitees initialWelcomeMessage:(NSString *)welcomeMessage styleSetting:(EMGroupStyleSetting *)styleSetting completion:(void (^)(EMGroup *group, EMError *error))completion onQueue:(dispatch_queue_t)aQueue; | 3.0版本 - (EMGroup *)createGroupWithSubject:(NSString *)aSubject description:(NSString *)aDescription invitees:(NSArray *)aInvitees message:(NSString *)aMessage setting:(EMGroupOptions *)aSetting error:(EMError **)pError; //调用: //EMError *error = nil; //EMGroup *group = [[EMClient sharedClient].groupManager createGroupWithSubject:@"subject" description:@"desc" invitees:source message:@"message" setting:setting error:&error]; |
| 2.0版本，创建匿名群组 | 3.0版本不再提供 |
| 2.0版本，加入一个匿名公开群组 | 3.0版本不再提供 |
| 2.0版本，退出群组（需要非owner的权限） - (EMGroup *)leaveGroup:(NSString *)groupId error:(EMError **)pError; - (void)asyncLeaveGroup:(NSString *)groupId; - (void)asyncLeaveGroup:(NSString *)groupId completion:(void (^)(EMGroup *group, EMGroupLeaveReason reason, EMError *error))completion onQueue:(dispatch_queue_t)aQueue; | 3.0版本 - (EMGroup *)leaveGroup:(NSString *)aGroupId error:(EMError **)pError; //调用: //EMError *error = nil; //[[EMClient sharedClient].groupManager leaveGroup:@"groupId" error:&error]; |
| 2.0版本，解散群组，需要owner权限 - (EMGroup *)destroyGroup:(NSString *)groupId error:(EMError **)pError; - (void)asyncDestroyGroup:(NSString *)groupId; - (void)asyncDestroyGroup:(NSString *)groupId completion:(void (^)(EMGroup *group, EMGroupLeaveReason reason, EMError *error))completion onQueue:(dispatch_queue_t)aQueue; | 3.0版本 - (EMGroup *)destroyGroup:(NSString *)aGroupId error:(EMError **)pError; //调用： //EMError *error = nil; //[[EMClient sharedClient].groupManager destroyGroup:@"groupId" error:&error]; |