利用环信实现类似聊天的工具

环信移动客服是全球首创的全媒体智能云客服平台。支持全媒体接入，包括网页在线客服、社交媒体客服（微博、微信）和移动端客服等多种渠道。基于环信业界领先的IM长连接技术保证消息必达，并通过独创的智能机器人技术极大降低人工客服工作量。

1.首先打开环信网站:http://www.easemob.com/?utm_source=baidu&utm_medium=sem&utm_term=环信&utm_campaign=PC%2D品牌词&utm_content=环信品牌

2.通过Cocoapods下载地址,导入框架:具体步骤如下:3.使用时必须导入框架:#import <EaseMobSDK/EaseMob.h>

下面是具体简单使用的代码:

#import "AppDelegate.h"
#import <UIImageView+WebCache.h>
#import <EaseMobSDKFull/EaseMob.h>
#import <AVFoundation/AVFoundation.h>
@interface AppDelegate ()<UIAlertViewDelegate, EMChatManagerDelegate>

@property (nonatomic, copy)NSString *userName;
@property (nonatomic, strong)AVPlayer *player;
@end

@implementation AppDelegate

- (void)didReceiveMessage:(EMMessage *)message {
     NSString *fromUser = message.from;
    if ([message.messageBodies.firstObject isKindOfClass:[EMTextMessageBody class]]) {
        [[[UIAlertView alloc] initWithTitle:[NSString stringWithFormat:@"接收到%@消息",fromUser] message:[[message.messageBodies firstObject] text] delegate:nil cancelButtonTitle:@"好的" otherButtonTitles:nil] show];
    }else if([message.messageBodies.firstObject isKindOfClass:[EMImageMessageBody class]]){
        EMImageMessageBody *body = message.messageBodies.firstObject;
        NSLog(@"%@, remotePath:%@",body.image, body.thumbnailRemotePath);
        UIImageView *imageView = [[UIImageView alloc] initWithFrame:self.window.bounds];
        [imageView sd_setImageWithURL:[NSURL URLWithString:body.thumbnailRemotePath]];
        [self.window addSubview:imageView];
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            [imageView removeFromSuperview];
        });
    }else if ([message.messageBodies.firstObject isKindOfClass:[EMVoiceMessageBody class]]){
        EMVoiceMessageBody *body = message.messageBodies.firstObject;
        NSLog(@"%@",body.remotePath);
        //下载以后再播放
        NSLog(@"语音附件是否下载完成:%lu",(unsigned long)body.attachmentDownloadStatus);
    }
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    //registerSDKWithAppKey:注册的appKey，详细见下面注释。
    //apnsCertName:推送证书名(不需要加后缀)，详细见下面注释。
    [[EaseMob sharedInstance] registerSDKWithAppKey:@"liu123#liujunchendemo" apnsCertName:@"liutest"];
    [[EaseMob sharedInstance] application:application didFinishLaunchingWithOptions:launchOptions];
    
    //注册chatManage 监听
    [[EaseMob sharedInstance].chatManager addDelegate:self delegateQueue:dispatch_get_main_queue()];
    return YES;
}

//收到好友请求
- (void)didReceiveBuddyRequest:(NSString *)username
                       message:(NSString *)message{
    self.userName = username;
    [[[UIAlertView alloc] initWithTitle:@"添加好友请求" message:[NSString stringWithFormat:@"%@请求添加您为好友",username] delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"同意",@"拒绝", nil] show];
}

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
    if (buttonIndex == 1) {
        //同意添加
        EMError *error = nil;
        BOOL isSuccess = [[EaseMob sharedInstance].chatManager acceptBuddyRequest:self.userName error:&error];
        if (isSuccess && !error) {
            NSLog(@"发送同意成功");
        }
    }else if (buttonIndex == 2){
        //拒绝
        EMError *error = nil;
        BOOL isSuccess = [[EaseMob sharedInstance].chatManager rejectBuddyRequest:self.userName reason:@"111111" error:&error];
        if (isSuccess && !error) {
            NSLog(@"发送拒绝成功");
        }
    }
}
//别人同意加我为好友
-(void)didAcceptBuddySucceed:(NSString *)username {
    
    [[[UIAlertView alloc] initWithTitle:@"添加好友请求" message:[NSString stringWithFormat:@"%@请求添加您为好友",username] delegate:nil cancelButtonTitle:@"取消" otherButtonTitles:@"同意",@"拒绝", nil] show];
}
//别人拒绝加我为好友
-(void)didRejectedByBuddy:(NSString *)username{
    [[[UIAlertView alloc] initWithTitle:@"拒绝好友请求" message:[NSString stringWithFormat:@"%@拒绝添加您为好友",username] delegate:nil cancelButtonTitle:@"取消" otherButtonTitles:@"好的",@"拒绝", nil] show];
    
}
// App进入后台
- (void)applicationDidEnterBackground:(UIApplication *)application
{
    [[EaseMob sharedInstance] applicationDidEnterBackground:application];
}

// App将要从后台返回
- (void)applicationWillEnterForeground:(UIApplication *)application
{
    [[EaseMob sharedInstance] applicationWillEnterForeground:application];
}

// 申请处理时间
- (void)applicationWillTerminate:(UIApplication *)application
{
    [[EaseMob sharedInstance] applicationWillTerminate:application];
}




#import "LoginViewController.h"
#import <EaseMobSDKFull/EaseMob.h>

@interface LoginViewController ()
@property (weak, nonatomic) IBOutlet UITextField *idTextField;
@property (weak, nonatomic) IBOutlet UITextField *pswTextFiled;

@end

@implementation LoginViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    
}
- (IBAction)logIn:(id)sender {
    
    [[EaseMob sharedInstance].chatManager asyncLoginWithUsername:self.idTextField.text password:self.pswTextFiled.text completion:^(NSDictionary *loginInfo, EMError *error) {
        if (!error && loginInfo) {
            NSLog(@"登陆成功");
            //跳转页面
            [self performSegueWithIdentifier:@"pushToList" sender:nil];
        }else{
            NSLog(@"%@",error);
        }
    } onQueue:nil];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end




#import "RegisterViewController.h"
#import <EaseMobSDKFull/EaseMob.h>

@interface RegisterViewController ()
@property (weak, nonatomic) IBOutlet UITextField *idTextField;

@property (weak, nonatomic) IBOutlet UITextField *psdTextField;
@end

@implementation RegisterViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
}
- (IBAction)registerClick:(id)sender {
    
    [[EaseMob sharedInstance].chatManager asyncRegisterNewAccount:self.idTextField.text password:self.psdTextField.text withCompletion:^(NSString *username, NSString *password, EMError *error) {
        if (!error) {
            NSLog(@"注册成功");
        }else{
            NSLog(@"error:%@",error);
        }
    } onQueue:nil];
    
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end





#import "FriendsViewController.h"
#import <EaseMobSDKFull/EaseMob.h>
#import "ChatDetailViewController.h"
@interface FriendsViewController ()<UITableViewDelegate, UITableViewDataSource>

@property (weak, nonatomic) IBOutlet UITableView *tableView;
@property (nonatomic, strong) NSMutableArray *friendsList;

@end

@implementation FriendsViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.friendsList = [@[] mutableCopy];
    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cellID"];
    
    [[EaseMob sharedInstance].chatManager asyncFetchBuddyListWithCompletion:^(NSArray *buddyList, EMError *error) {
        if (!error) {
            NSLog(@"获取成功 -- %@",buddyList);
            [self.friendsList addObjectsFromArray:buddyList];
            [self.tableView reloadData];
        }
    } onQueue:nil];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return self.friendsList.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cellID" forIndexPath:indexPath];
    EMBuddy *buddy = self.friendsList[indexPath.row];
    cell.textLabel.text = buddy.username;
    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    [self performSegueWithIdentifier:@"pushToDetail" sender:indexPath];
}




-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([segue.identifier isEqualToString:@"pushToDetail"]) {
        ChatDetailViewController *detailVC = segue.destinationViewController;
        EMBuddy *buddy = self.friendsList[[sender row]];
        detailVC.userName = buddy.username;
    }
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end



#import "AddFriendViewController.h"
#import <EaseMobSDKFull/EaseMob.h>

@interface AddFriendViewController ()
@property (weak, nonatomic) IBOutlet UITextField *idTF;

@end

@implementation AddFriendViewController
- (IBAction)addFriend:(id)sender {
    
    EMError *error = nil;
    BOOL isSuccess = [[EaseMob sharedInstance].chatManager addBuddy:self.idTF.text message:@"我想加您为好友" error:&error];
    if (isSuccess && !error) {
        NSLog(@"添加成功");
    }else{
        NSLog(@"添加好友失败");
    }
}
- (IBAction)scan:(id)sender {
}

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/
@end

#import "ChatListViewController.h"

@interface ChatListViewController ()<UITableViewDelegate, UITableViewDataSource>
@property (weak, nonatomic) IBOutlet UITableView *tableView;

@end

@implementation ChatListViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cellID"];

    // Do any additional setup after loading the view.
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return 10;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cellID" forIndexPath:indexPath];
    return cell;
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/
@end



#import "ChatDetailViewController.h"
#import <EaseMobSDKFull/EaseMob.h>
#import <UIImageView+WebCache.h>
@interface ChatDetailViewController ()<UITableViewDataSource, UITableViewDelegate>
- (IBAction)addBlackList:(id)sender;
- (IBAction)deleteFriend:(id)sender;
- (IBAction)sendVoice:(id)sender;
- (IBAction)sendText:(id)sender;
- (IBAction)sendImage:(id)sender;
@property (weak, nonatomic) IBOutlet UITableView *tableView;
@property (nonatomic, strong)NSMutableArray *chatMessageList;

@end

@implementation ChatDetailViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    NSLog(@"+++++++++++++:%@", self.userName);
    //会话
    EMConversation *conversation = [[EaseMob sharedInstance].chatManager conversationForChatter:self.userName conversationType:eConversationTypeChat];
    NSLog(@"聊天记录:%@", [conversation loadAllMessages]);
    
    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"cell"];
    self.chatMessageList = [NSMutableArray arrayWithArray:[conversation loadAllMessages]];
}
-(NSInteger )tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    return self.chatMessageList.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];
//    for (id obj in self.chatMessageList) {
//        NSLog(@"%@",[obj class]);
//    }
    EMMessage *message = self.chatMessageList[indexPath.row];
    if ([message.messageBodies.firstObject isKindOfClass:[EMTextMessageBody class]]) {
        EMTextMessageBody *body = message.messageBodies.firstObject;
        cell.textLabel.text = body.text;
    }else if ([message.messageBodies.firstObject isKindOfClass:[EMImageMessageBody class]]){
        EMImageMessageBody *body = message.messageBodies.firstObject;
        //加载图片
        [cell.imageView sd_setImageWithURL:[NSURL URLWithString:body.thumbnailRemotePath]];
        cell.textLabel.text = @"这是图片";
    }else if ([message.messageBodies.firstObject isKindOfClass:[EMVoiceMessageBody class]]){
        cell.imageView.image = [UIImage imageNamed:@"1.jpg"];
        cell.textLabel.text = @"这是语音";
    }
    return cell;
}
- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (IBAction)addBlackList:(id)sender {
    //    将6001加入黑名单
    EMError *error = [[EaseMob sharedInstance].chatManager blockBuddy:self.userName relationship:eRelationshipBoth];
    if (!error) {
        NSLog(@"发送成功");
    }
}

- (IBAction)deleteFriend:(id)sender {
    
    
    EMError *error = nil;
    // 删除好友
    BOOL isSuccess = [[EaseMob sharedInstance].chatManager removeBuddy:self.userName removeFromRemote:YES error:&error];
    if (isSuccess && !error) {
        NSLog(@"删除成功");
    }
    [self.tableView reloadData];
    
//removeBuddy:要删除的用户
//removeFromRemote:是否将自己从对方好友列表中移除
//error:错误信息
//    

}

- (IBAction)sendVoice:(id)sender {
    NSString *path = [[NSBundle mainBundle] pathForResource:@"爱的供养" ofType:@"mp3"];
    
    EMChatVoice *voice = [[EMChatVoice alloc] initWithFile:path displayName:@"audio"];
    voice.duration = 100;
    EMVoiceMessageBody *body = [[EMVoiceMessageBody alloc] initWithChatObject:voice];
    
    // 生成message
    EMMessage *message = [[EMMessage alloc] initWithReceiver:self.userName bodies:@[body]];
    message.messageType = eMessageTypeChat; // 设置为单聊消息
    //message.messageType = eConversationTypeGroupChat;// 设置为群聊消息
    //message.messageType = eConversationTypeChatRoom;// 设置为聊天室消息
    
    //发送消息
    [[EaseMob sharedInstance].chatManager asyncSendMessage:message progress:nil prepare:^(EMMessage *message, EMError *error) {
        
    } onQueue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0) completion:^(EMMessage *message, EMError *error) {
        
        [[[UIAlertView alloc] initWithTitle:@"消息发送成功" message:@"" delegate:nil cancelButtonTitle:@"好的" otherButtonTitles:nil] show];
    } onQueue:dispatch_get_main_queue()];
}

- (IBAction)sendText:(id)sender {
    EMChatText *txtChat = [[EMChatText alloc] initWithText:@"你好哦"];
    EMTextMessageBody *body = [[EMTextMessageBody alloc] initWithChatObject:txtChat];
    // 生成message
    EMMessage *message = [[EMMessage alloc] initWithReceiver:self.userName bodies:@[body]];
    message.messageType = eMessageTypeChat; // 设置为单聊消息
    //message.messageType = eConversationTypeGroupChat;// 设置为群聊消息
    //message.messageType = eConversationTypeChatRoom;// 设置为聊天室消息
    
    //发送消息
    [[EaseMob sharedInstance].chatManager asyncSendMessage:message progress:nil prepare:^(EMMessage *message, EMError *error) {
        
    } onQueue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0) completion:^(EMMessage *message, EMError *error) {
        
        [[[UIAlertView alloc] initWithTitle:@"消息发送成功" message:@"" delegate:nil cancelButtonTitle:@"好的" otherButtonTitles:nil] show];
    } onQueue:dispatch_get_main_queue()];
}

- (IBAction)sendImage:(id)sender {
    UIImage *image = [UIImage imageNamed:@"1.jpg"];
    EMChatImage *imgChat = [[EMChatImage alloc] initWithUIImage:image displayName:@"displayName"];
    EMImageMessageBody *body = [[EMImageMessageBody alloc] initWithChatObject:imgChat];
    
    // 生成message
    EMMessage *message = [[EMMessage alloc] initWithReceiver:@"6001" bodies:@[body]];
    message.messageType = eMessageTypeChat; // 设置为单聊消息
    //message.messageType = eConversationTypeGroupChat;// 设置为群聊消息
    //message.messageType = eConversationTypeChatRoom;// 设置为聊天室消息
    
    //发送消息
    [[EaseMob sharedInstance].chatManager asyncSendMessage:message progress:nil prepare:^(EMMessage *message, EMError *error) {
        
    } onQueue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0) completion:^(EMMessage *message, EMError *error) {
        
        [[[UIAlertView alloc] initWithTitle:@"消息发送成功" message:@"" delegate:nil cancelButtonTitle:@"好的" otherButtonTitles:nil] show];
    } onQueue:dispatch_get_main_queue()];
    
}
@end

该Demo所用到的类如下

注意:该Demo的所有控件都是在storyBoard中实现的