iOS基础--环信

我回来了

简介：

• 环信是移动即时通讯能力的云计算PaaS( Platform as a Service, 平台服务)平台服务商

• 环信将基于移动互联网的即时通讯能力, 如单聊, 群聊, 语音, 图片, 位置, 实时音频, 实时视频等, 通过云端开放的 Rest API 和客户端 SDK 包的方式提供给开发者和企业. 让App内置聊天功能和以前网页中嵌入分享功能一样简单. 让移动开发者摆脱繁重的移动IM通讯底层开发, 极大限度地缩短产品开发周期, 极短的时间内让App拥有移动IM能力

• IOS SDK中有三个子文件夹: include, lib, resources
• lib 包含两个静态库libEaseMobClientSDK.a 和 libEaseMobClientSDKLite.a

1、libEaseMobClientSDKLite.a不包括实时语音功能
2、libEaseMobClientSDK.a包含所有功能
3、如果app中不需要实时语音功能,删掉libEaseMobClientSDK.a只使用libEaseMobClientSDKLite.a即可

• resources idk的bundle,包含旧版的数据库,消息提示音, idk配置文件.
• include 包含idk的头文件. 所有接口都在这个文件中

---

---

初始化SDK

• 1、引入头文件
  #import
• 2、初始化
  // 参数 1 : APPkey 由应用名字#公司的ID构成
  // 参数 2 : 如果使用
  [[EaseMob sharedInstance]registerSDKWithAppKey:@"lutianyi#easemobsample" apnsCertName:@""];

// 进入后台
- (void)applicationDidEnterBackground:(UIApplication *)application {
[[EaseMob sharedInstance]applicationDidEnterBackground:application];}
// 进入前台
- (void)applicationWillEnterForeground:(UIApplication *)application {
[[EaseMob sharedInstance]applicationWillEnterForeground:application];}
// 申请处理时间
- (void)applicationWillTerminate:(UIApplication *)application {
[[EaseMob sharedInstance] applicationWillTerminate:application];
}`
//注册—异步的Block方式
- (IBAction)registerButtonAction:(id)sender {
[[EaseMob sharedInstance].chatManager asyncRegisterNewAccount:self.userNameTF.text password:self.passWordTF.text withCompletion:^(NSString *username, NSString *password, EMError *error) {
if (error == nil) {
[self.delegate passValueUserName:self.userNameTF.text PassWord:self.passWordTF.text];
[self dismissViewControllerAnimated:YES completion:nil]; }
onQueue:dispatch_get_main_queue()];
}
// 登录---异步的Block方法
- (IBAction)loginButtonAction:(id)sender {
[[EaseMob sharedInstance].chatManager asyncLoginWithUsername:self.userNameTF.text password:self.passWordTF.text completion:^(NSDictionary *loginInfo, EMError *error) {
if (error == nil) {
AppDelegate *app = [UIApplication sharedApplication].delegate;
[app createTabBar];
NSLog(@"登录成功"); } }
onQueue:dispatch_get_main_queue()];}

// 添加好友 ---
- (IBAction)addRosterAction:(id)sender {
EMError *error = nil;
BOOL succeed = [[EaseMob sharedInstance].chatManager addBuddy:self.nameTF.text message:@"约吗?" error:&error];
if (succeed && !error) {
[self.navigationController popToRootViewControllerAnimated:YES]; }}

---

#pragma mark ---EMChatManagerDelegate 代理方法

---

 //设置代理

 [[EaseMob sharedInstance].chatManager addDelegate:self delegateQueue:dispatch_get_main_queue()];

// 收到好友请求
- (void)didReceiveBuddyRequest:(NSString *)username message:(NSString *)message{

NSString *title = [NSString stringWithFormat:@"%@ 跪求添加您为好友", username]; 

UIAlertController *controller = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:(UIAlertControllerStyleAlert)];

UIAlertAction *actionAgree = [UIAlertAction actionWithTitle:@"行吧" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction * _Nonnull action) {       

//环信里错误类 相当于NSError

 EMError *error = nil;
 BOOL succeed = [[EaseMob sharedInstance].chatManager acceptBuddyRequest:username error:&error];       
 if (succeed && !error) {            
NSLog(@"接收成功");        } else 
{            NSLog(@"接收失败");        }    }];  

UIAlertAction *actionDisagree = [UIAlertAction actionWithTitle:@"丑拒" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction * _Nonnull action) {              
 EMError *error = nil;       
 BOOL succeed = [[EaseMob sharedInstance].chatManager rejectBuddyRequest:username reason:@"呵呵呵" error:&error];        
if (succeed && !error) {            
NSLog(@"已拒绝成功"); }
 else {  NSLog(@"拒绝失败");        }    }];     
 [controller addAction:actionAgree];    
[controller addAction:actionDisagree];   
 [self presentViewController:controller animated:YES completion:nil];}

• 消息: IM交互实体,在SDK中对应的类型是EMMessage, EMMessage可以由多个符合协议的body组成,推荐使用一个body.

//发送消息
- (void)sendMessage{
EMChatText *text = [[EMChatText alloc]initWithText:@"收到请回复,OVER"];
EMTextMessageBody *textMessageBody = [[EMTextMessageBody alloc]initWithChatObject:text];

 EMMessage *message = [[EMMessage alloc]initWithReceiver:self.chatter bodies:@[textMessageBody]]; 

// 发送这条消息

[[EaseMob sharedInstance].chatManager asyncSendMessage:message progress:nil prepare:^(EMMessage *message, EMError *error)
 {     
 //准备发送   
 } 
onQueue:dispatch_get_main_queue() completion:^(EMMessage *message, EMError *error) 
{       
 // 发送成功        
if (!error) {            
[self reloadMessage];        }    }   
 onQueue:dispatch_get_main_queue()];}

// 接收到消息

- (void)didReceiveMessage:(EMMessage *)message{  
  [self reloadMessage];
}

// 获取某聊天对象的所有聊天信息

- (void)reloadMessage{      
 self.dataArray = [[EaseMob sharedInstance].chatManager conversationForChatter:self.chatter conversationType:(eConversationTypeChat)];

}