//先引入类库
#import "EMSDK.h"
1.在AppDelegate.m中
//初始化一个环信对象
EMOptions *emOp =[EMOptionsoptionsWihtAppkey:@"lyf520zln#bjs160305"];
[[EMClient sharedClient] initializeSDKWithOptions : emOp];
//获取到keyWindow
[self.window makeKeyAndVisible];
//获取main.storyboard
UIStoryboard *main = [UIStoryboard storyboardWithName : @"Main" bundle : nil];
UINavigationController *loginNC = [main instanttiateInitialViewController];
//通过chat.storyboard的根视图控制器，模态推出下个界面
[self.window.rootViewController presentViewController : loginNC animated : YES completion : nil];
2.在viewController.m里
//声明两个插座变量
@property (weak, nonatomic) IBOutlet UITextField *userNameField;
@property (weak, nonatomic) IBOutlet UITextField *passwordField;
#pragma mark - 点击登录按钮
- (IBAction) loginButton : (id) sender {
if (self.userNameField.text.length == 0 || self.passwordField.text.length == 0){
NSLog(@"用户名密码不能为空");
return ;
}
//环信登录的方法
EMError *error = [[EMClient sharedClient] loginWithUserName : self.userNameField.text password : self.passwordField.text];
NSLog(@"error = %@",error);
if (!error){
NSLog(@"登录成功");
//返回会话列表
[self dismissViewControllerAnimated : YES completion : nil];
}
}
2.在RegisterViewController.m里
//声明两个插座变量
@property (weak, nonatomic) IBOutlet UITextField *userNameField;
@property (weak, nonatomic) IBOutlet UITextField *passwordField;
#pragma mark - 点击注册按钮
- (IBAction)didClickRegistButton : (UIButton *)sender {
if (self.userNameField.text.length == 0 || self.passwordField.text.length == 0) {
NSLog(@"用户名或密码不能为空");
return ;
}
//环信的注册
EMError *error =[ [EMClient sharedClient] registerWithUserName: self.userNameField.text password : self.passwordField.text];
NSLog(@"error = %@",error);
if (!error){
NSLog(@"注册成功");
}
}
3.在chatTableViewController.m里
//会话属性
@property (nonatomic,strong) EMConversation *conversation;
//消息数组
@property (nonatomic,strong) NSMutableArray *messageArray;
#pragma mark - 视图显示
- (void) viewDidAppear :(BOOL) animationed {
[super viewDidAppear : animated];
NSLog(@"%@",[EMClient sharedClient].currentUsername);
//创建一个会话
self.conversation = [[EMClient sharedClient].chatManager getConversation : @"[EMClicent sharedClient].currentUsername" type : EMConversationTypeChat createIfNotExist : YES];
//注册接收消息
[[EMClient sharedClient].chatManager addDelegate : self delegateQueue : nil];
//移除消息回调
[[EMClient sharedClient].chatManager removeDelegate : self];
}
- (void) viewDidLoad {
[super viewDidLoad];
self.messageArray = [NSMutableArray array];
//注册接收消息
[[EMClient sharedClient].chatManager addDelegate : self delegateQueue : nil];
//注册cell
[self.tableView registerClass : [UITableViewCell class] forCellReuseIdent ifier : @"cell"];
}
#pragma mark - 接收消息的代理方法
- (void) didReceiveMessages : (NSArray *)aMessages {
NSLog (@"接收到： %@",aMessages);
//刷新tableview
[self.tableView reloadData];
}
#pragma mark - 点击注销按钮
- (void)didClickLogoutButton :(UIBarButtonItem *)sender {
EMError *error = [[EMClient sharedClient]logout : YES];
if(!error){
NSLog(@"退出成功");
}
//返回登录页面
UIStoryboard *main = [UIStoryboard storyboardWithName : @"Main" bundle : nil];
UINavigationController *loginNC = [main instantiateInitialViewController];
[self pressentViewController :loginNC animated :YES completion : nil];
}
#pragma mark - 点击发送按钮
- (void) didClickSendMessageButton :(UIBarButtonItem *) sender {
//创建消息内容messageBody
EMTextMessageBody *body = [[EMTextMessageBody alloc] initWithText : @"向对方扔一坨屎"];
NSString *from = [[EMClient sharedClient] currentUsername];
//消息对象
EMMessage *message = [[EMMessage alloc] initWithConversationID : from from : from to : from body :body ext : nil];
message.chatType = EMChatTypeChat;
#pragma mark - 发送消息
[[EMClient sharedClient].chatManager asyncSendMessage:message progress:^(int progress) {
} completion:^(EMMessage *message, EMError *error) {
NSLog(@"发送的消息%@",message);
if (!error) {
NSLog(@"发送成功");
message.to = @"";
//设置发送方向
message.direction = EMMessageDirectionReceive;
[self.messageArray addObject:message];
//刷新tableview
[self.tableView reloadData];
}
}];
}
#pragma mark - 设置cell
分区：1
列数：self.messageArray.count
cell:用系统自带初始化
{
UITableViewCell = *cell = [tableView dequeueReusableCellWithIdentifier :@"cell" forIndexPath : indexPath];
EMMessage *message = self.messageArray[indexPath.row];
if (message.direction == EMMessageDirectionSend){
cell.textLabel.text = @"";
cell.detailTextLabel.text = [self textFromMessage : message];
cell.detailTextLabel.textColor = [UIColor magentaColor];
}else {
cell.textLabel.text = [self textFromMessage : message];
cell.detailTextLabel.text = @"";
}
return cell;
}
#pragma mark - 取出消息中的文本
- (NSString *)textFromMessage :(EMMessage *)message {
EMMessageBody *body = message.body;
EMTextMessageBody *textBody = (EMTextMessageBody *)body;
//输出文本内容
NSLog(@"textBody = %@",textBody.text);
NSString *text = textBody.text;
return text;
}