简单集成环信视频通话

之前在弄环信的视频通话,找了好久都没有找到资源,尤其是上面,虽然环信官方有集成音视频的视频,但是那个是在太模糊了,我这里只能被动接收视频,下面开始吧
我用的SDK是这个ios_IM_sdk_V3.1.4
1.将HyphenateFullSDK导入项目中然后

class.png

这些环信官方文档都有滴
2.登录注册的接口加入项目中
重点来了
3
ChatDemoHelper.h 我进行了删减

/************************************************************
 *  * Hyphenate CONFIDENTIAL
 * __________________
 * Copyright (C) 2016 Hyphenate Inc. All rights reserved.
 *
 * NOTICE: All information contained herein is, and remains
 * the property of Hyphenate Inc.
 * Dissemination of this information or reproduction of this material
 * is strictly forbidden unless prior written permission is obtained
 * from Hyphenate Inc.
 */

#import 

//#import "ConversationListController.h"
//#import "ContactListViewController.h"
#import "ViewController.h"
//#import "ChatViewController.h"

#define kHaveUnreadAtMessage    @"kHaveAtMessage"
#define kAtYouMessage           1
#define kAtAllMessage           2

#if DEMO_CALL == 1

#import "CallViewController.h"

@interface ChatDemoHelper : NSObject 

#else

@interface ChatDemoHelper : NSObject 

#endif
//
//@property (nonatomic, weak) ContactListViewController *contactViewVC;
//
//@property (nonatomic, weak) ConversationListController *conversationListVC;

@property (nonatomic, weak) ViewController  *mainVC;

//@property (nonatomic, weak) ChatViewController *chatVC;

#if DEMO_CALL == 1

@property (strong, nonatomic) EMCallSession *callSession;
@property (strong, nonatomic) CallViewController *callController;

#endif

+ (instancetype)shareHelper;


#if DEMO_CALL == 1

- (void)makeCallWithUsername:(NSString *)aUsername
                     isVideo:(BOOL)aIsVideo;

- (void)hangupCallWithReason:(EMCallEndReason)aReason;

- (void)answerCall;

#endif

@end

ChatDemoHelper.m

/************************************************************
 *  * Hyphenate CONFIDENTIAL
 * __________________
 * Copyright (C) 2016 Hyphenate Inc. All rights reserved.
 *
 * NOTICE: All information contained herein is, and remains
 * the property of Hyphenate Inc.
 * Dissemination of this information or reproduction of this material
 * is strictly forbidden unless prior written permission is obtained
 * from Hyphenate Inc.
 */

#import "ChatDemoHelper.h"

#import "AppDelegate.h"
#if DEMO_CALL == 1

#import "CallViewController.h"

@interface ChatDemoHelper()
{
    NSTimer *_callTimer;
}

@end

#endif

static ChatDemoHelper *helper = nil;

@implementation ChatDemoHelper

+ (instancetype)shareHelper
{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        helper = [[ChatDemoHelper alloc] init];
    });
    return helper;
}

- (void)dealloc
{
    [[EMClient sharedClient] removeDelegate:self];
    [[EMClient sharedClient].groupManager removeDelegate:self];
    [[EMClient sharedClient].contactManager removeDelegate:self];
    [[EMClient sharedClient].roomManager removeDelegate:self];
    [[EMClient sharedClient].chatManager removeDelegate:self];
    
#if DEMO_CALL == 1
    [[EMClient sharedClient].callManager removeDelegate:self];
#endif
}

- (id)init
{
    self = [super init];
    if (self) {
        [self initHelper];
    }
    return self;
}

- (void)initHelper
{
#ifdef REDPACKET_AVALABLE
    [[RedPacketUserConfig sharedConfig] beginObserveMessage];
#endif
    
    [[EMClient sharedClient] addDelegate:self delegateQueue:nil];
    [[EMClient sharedClient].groupManager addDelegate:self delegateQueue:nil];
    [[EMClient sharedClient].contactManager addDelegate:self delegateQueue:nil];
    [[EMClient sharedClient].roomManager addDelegate:self delegateQueue:nil];
    [[EMClient sharedClient].chatManager addDelegate:self delegateQueue:nil];
    
#if DEMO_CALL == 1
    [[EMClient sharedClient].callManager addDelegate:self delegateQueue:nil];
    
   // [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(makeCall:) name:KNOTIFICATION_CALL object:nil];
#endif
}

- (void)asyncPushOptions
{
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        EMError *error = nil;
        [[EMClient sharedClient] getPushOptionsFromServerWithError:&error];
    });
}


#pragma mark - EMCallManagerDelegate

#if DEMO_CALL == 1

- (void)didReceiveCallIncoming:(EMCallSession *)aSession
{
    
    if(_callSession && _callSession.status != EMCallSessionStatusDisconnected){
        [[EMClient sharedClient].callManager endCall:aSession.sessionId reason:EMCallEndReasonBusy];
    }
    
    if ([[UIApplication sharedApplication] applicationState] != UIApplicationStateActive) {
        [[EMClient sharedClient].callManager endCall:aSession.sessionId reason:EMCallEndReasonFailed];
    }
    
    _callSession = aSession;
    if(_callSession){
        [self _startCallTimer];
        
        _callController = [[CallViewController alloc] initWithSession:_callSession isCaller:NO status:@"连接建立完成"];
        _callController.modalPresentationStyle = UIModalPresentationOverFullScreen;
       // _mainVC = [[MainViewController alloc]init];
        [_mainVC presentViewController:_callController animated:NO completion:nil];
    }
}

- (void)didReceiveCallConnected:(EMCallSession *)aSession
{
    if ([aSession.sessionId isEqualToString:_callSession.sessionId]) {
        _callController.statusLabel.text = @"连接建立完成";
        
        AVAudioSession *audioSession = [AVAudioSession sharedInstance];
        [audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
        [audioSession setActive:YES error:nil];
    }
}

- (void)didReceiveCallAccepted:(EMCallSession *)aSession
{
    if ([[UIApplication sharedApplication] applicationState] != UIApplicationStateActive) {
        [[EMClient sharedClient].callManager endCall:aSession.sessionId reason:EMCallEndReasonFailed];
    }
    
    if ([aSession.sessionId isEqualToString:_callSession.sessionId]) {
        [self _stopCallTimer];
        
        NSString *connectStr = aSession.connectType == EMCallConnectTypeRelay ? @"Relay" : @"Direct";
        _callController.statusLabel.text = [NSString stringWithFormat:@"%@ %@",@"可以说话了...", connectStr];
        _callController.timeLabel.hidden = NO;
        [_callController startTimer];
        [_callController startShowInfo];
        _callController.cancelButton.hidden = NO;
        _callController.rejectButton.hidden = YES;
        _callController.answerButton.hidden = YES;
    }
}

- (void)didReceiveCallTerminated:(EMCallSession *)aSession
                          reason:(EMCallEndReason)aReason
                           error:(EMError *)aError
{
    if ([aSession.sessionId isEqualToString:_callSession.sessionId]) {
        [self _stopCallTimer];
        
        _callSession = nil;
        
        [_callController close];
        _callController = nil;
        
        if (aReason != EMCallEndReasonHangup) {
            NSString *reasonStr = @"";
            switch (aReason) {
                case EMCallEndReasonNoResponse:
                {
                    reasonStr = @"对方没有回应";
                }
                    break;
                case EMCallEndReasonDecline:
                {
                    reasonStr = @"拒接通话";
                }
                    break;
                case EMCallEndReasonBusy:
                {
                    reasonStr = @"正在通话中...";
                }
                    break;
                case EMCallEndReasonFailed:
                {
                    reasonStr = @"建立连接失败";
                }
                    break;
                default:
                    break;
            }
            
            if (aError) {
                UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error" message:aError.errorDescription delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
                [alertView show];
            }
            else{
                UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:nil message:reasonStr delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
                [alertView show];
            }
        }
    }
}

- (void)didReceiveCallNetworkChanged:(EMCallSession *)aSession status:(EMCallNetworkStatus)aStatus
{
    if ([aSession.sessionId isEqualToString:_callSession.sessionId]) {
        [_callController setNetwork:aStatus];
    }
}

#endif

#pragma mark - public 

#if DEMO_CALL == 1

- (void)makeCall:(NSNotification*)notify
{
    if (notify.object) {
        [self makeCallWithUsername:[notify.object valueForKey:@"chatter"] isVideo:[[notify.object objectForKey:@"type"] boolValue]];
    }
}

- (void)_startCallTimer
{
    _callTimer = [NSTimer scheduledTimerWithTimeInterval:50 target:self selector:@selector(_cancelCall) userInfo:nil repeats:NO];
}

- (void)_stopCallTimer
{
    if (_callTimer == nil) {
        return;
    }
    
    [_callTimer invalidate];
    _callTimer = nil;
}

- (void)_cancelCall
{
    [self hangupCallWithReason:EMCallEndReasonNoResponse];
    
    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:nil message:@"没有响应,自动挂断" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
    [alertView show];
}

- (void)makeCallWithUsername:(NSString *)aUsername
                     isVideo:(BOOL)aIsVideo
{
    if ([aUsername length] == 0) {
        return;
    }
    //是视频
    if (aIsVideo) {
        _callSession = [[EMClient sharedClient].callManager makeVideoCall:aUsername error:nil];
    }
    else{
        _callSession = [[EMClient sharedClient].callManager makeVoiceCall:aUsername error:nil];
    }
    
    if(_callSession){
        [self _startCallTimer];
        
        _callController = [[CallViewController alloc] initWithSession:_callSession isCaller:YES status:@"正在建立连接..."];
        [_mainVC presentViewController:_callController animated:NO completion:nil];
    }
    else{
        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:nil message:@"创建实时通话失败,请稍后重试" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
        [alertView show];
    }
    
}

- (void)hangupCallWithReason:(EMCallEndReason)aReason
{
    [self _stopCallTimer];
    
    if (_callSession) {
        [[EMClient sharedClient].callManager endCall:_callSession.sessionId reason:aReason];
    }
    
    _callSession = nil;
    [_callController close];
    _callController = nil;
}

- (void)answerCall
{
    if (_callSession) {
        dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
            EMError *error = [[EMClient sharedClient].callManager answerIncomingCall:_callSession.sessionId];
            if (error) {
                NSLog(@"错了");
                dispatch_async(dispatch_get_main_queue(), ^{
                    if (error.code == EMErrorNetworkUnavailable) {
                        UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:nil message:@"网络连接失败" delegate:nil cancelButtonTitle:@"OK"otherButtonTitles:nil, nil];
                        [alertView show];
                    }
                    else{
                        NSLog(@"挂断");
                        [self hangupCallWithReason:EMCallEndReasonFailed];
                    }
                });
            }
        });
    }
}

#endif

#pragma mark - private
- (BOOL)_needShowNotification:(NSString *)fromChatter
{
    BOOL ret = YES;
    NSArray *igGroupIds = [[EMClient sharedClient].groupManager getAllIgnoredGroupIds];
    for (NSString *str in igGroupIds) {
        if ([str isEqualToString:fromChatter]) {
            ret = NO;
            break;
        }
    }
    return ret;
}

@end

这里需要注意一点,ViewController.h 是根据你的主视图控制器来进行更改,环信上面是UITabBarController,随你喜欢了。。。
ViewController.m

//
//  ViewController.m
//  Two
//
//  Created by maxh on 16/8/4.
//  Copyright © 2016年 merise. All rights reserved.
//

#import "ViewController.h"
#import "ChatDemoHelper.h"
@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    [ChatDemoHelper shareHelper].mainVC = self;
}

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

@end

这里是给主视图控制器赋值
最后不要忘了创建PCH文件把#import "EMSDKFull.h"

define DEMO_CALL 1 这两个放进去哈,,啦啦啦,完成了,可以接听视频了

更新:
环信3.2.0之后新增加了DemoCallManager这个类,然而并不用担心,你直接把环信demo里面的call那个文件里面的类导入工程,其他的不用动,就和原来的一样的

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