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Пример iOS-приложения для видеоконференции

Работа с кодом примера

Для разбора кода возьмем версию примера Conference, которая доступена для скачивания в сборке 2.5.2.

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1. Импорт API. код

Code Block

language	bashcpp
theme	RDark

#import <FPWCSApi2/FPWCSApi2.h>

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URL WCS-сервера
имя пользователя чат-комнаты

Code Block

language	bashcpp
theme	RDark

- (void)connect {
    FPWCSApi2RoomManagerOptions *options = [[FPWCSApi2RoomManagerOptions alloc] init];
    options.urlServer = _connectUrl.text;
    options.username = _connectLogin.input.text;
    NSError *error;
    roomManager = [FPWCSApi2 createRoomManager:options error:&error];
    if (!roomManager) {
        UIAlertController * alert = [UIAlertController
                                     alertControllerWithTitle:@"Failed to connect"
                                     message:error.localizedDescription
                                     preferredStyle:UIAlertControllerStyleAlert];
        
        UIAlertAction* okButton = [UIAlertAction
                                   actionWithTitle:@"Ok"
                                   style:UIAlertActionStyleDefault
                                   handler:^(UIAlertAction * action) {
                                       [self onDisconnected];
                                   }];
        
        [alert addAction:okButton];
        [self presentViewController:alert animated:YES completion:nil];
    }
    
    [roomManager on:kFPWCSRoomManagerEventConnected callback:^(FPWCSApi2RoomManager *rManager){
        [self changeConnectionStatus:kFPWCSRoomManagerEventConnected];
        [self onConnected:rManager];
    }];
    
    [roomManager on:kFPWCSRoomManagerEventFailed callback:^(FPWCSApi2RoomManager *rManager){
        [self changeConnectionStatus:kFPWCSRoomManagerEventDisconnected];
        [self onUnpublished];
        [self onLeaved];
        [self onDisconnected];
    }];
    
    [roomManager on:kFPWCSRoomManagerEventDisconnected callback:^(FPWCSApi2RoomManager *rManager){
        [self changeConnectionStatus:kFPWCSRoomManagerEventDisconnected];
        [self onUnpublished];
        [self onLeaved];
        [self onDisconnected];
    }];
}...
}

3. Присоединение к конференции.

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имя чат-комнаты

Code Block

language	bashcpp
theme	RDark

FPWCSApi2RoomOptions * options = [[FPWCSApi2RoomOptions alloc] init];
options.name = _joinRoomName.input.text;
room = [roomManager join:options];

...

Если текущий участник остается в комнате, запускается проигрывание потока от других участников при помощи метода FPWCSApi2RoomParticipant play

Code Block

language	bashcpp
theme	RDark

[room onStateCallback:^(FPWCSApi2Room *room) {
    NSDictionary *participants = [room getParticipants];
    if ([participants count] >= 3) {
        [room leave:nil];
        _joinStatus.text = @"Room is full";
        [self changeViewState:_joinButton enabled:YES];
        return;
                
    }
    NSString *chatState = @"participants: ";
    for (NSString* key in participants) {
        FPWCSApi2RoomParticipant *participant = [participants valueForKey:key];
        ParticipantView *pv = [freeViews pop];
        [busyViews setValue:pv forKey:[participant getName]];
        [participant play:pv.display];
        pv.login.text = [participant getName];
        chatState = [NSString stringWithFormat:@"%@%@, ", chatState, [participant getName]];
    }
    _joinStatus.text = @"JOINED";
    [self changeViewState:_joinButton enabled:YES];
    [_joinButton setTitle:@"LEAVE" forState:UIControlStateNormal];
    [self changeViewState:_publishButton enabled:YES];
    [self changeViewState:_sendButton enabled:YES];
    if ([participants count] == 0) {
        _messageHistory.text = [NSString stringWithFormat:@"%@\n%@ - %@", _messageHistory.text, @"chat", @"room is empty"];
    } else {
        _messageHistory.text = [NSString stringWithFormat:@"%@\n%@ - %@", _messageHistory.text, @"chat", [chatState substringToIndex:MAX((int)[chatState length]-2, 0)]];
    }
}];

5. Публикация видеопотока.

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вид для локального отображения публикуемого потока

Code Block

language	bashcpp
theme	RDark

- (void)publishButton:(UIButton *)button {
    [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text isEqualToString:@"STOP"]) {
        [room unpublish];
    } else {
        publishStream = [room publish:_localDisplay];
        [publishStream on:kFPWCSStreamStatusPublishing callback:^(FPWCSApi2Stream *rStream){
            [self changeViewState:_publishButton enabled:YES];
            [self changeLocalStatus:rStream];
            [_publishButton setTitle:@"STOP" forState:UIControlStateNormal];
            [self changeViewState:_muteAudio enabled:YES];
            [self changeViewState:_muteVideo enabled:YES];
        }];
        
        [publishStream on:kFPWCSStreamStatusUnpublished callback:^(FPWCSApi2Stream *rStream){
            [self onUnpublished];
            [self changeLocalStatus:rStream];
        }];
        
        [publishStream on:kFPWCSStreamStatusFailed callback:^(FPWCSApi2Stream *rStream){
            [self onUnpublished];
            [self changeLocalStatus:rStream];
    
        }];

    }
}...
    }
}

6. Получение от сервера события, сигнализирующего о присоединении к конференции другого участника

FPWCSApi2Room kFPWCSRoomParticipantEventJoined participantCallback код

Code Block

language	bashcpp
theme	RDark

[room on:kFPWCSRoomParticipantEventJoined participantCallback:^(FPWCSApi2Room *room, FPWCSApi2RoomParticipant *participant) {
    ParticipantView *pv = [freeViews pop];
    if (pv) {
        pv.login.text = [participant getName];
        _messageHistory.text = [NSString stringWithFormat:@"%@\n%@ - %@", _messageHistory.text, participant.getName, @"joined"];
        [busyViews setValue:pv forKey:[participant getName]];
    }
}];

...

FPWCSApi2Room kFPWCSRoomParticipantEventPublished participantCallback, FPWCSApi2RoomParticipant play код

Code Block

language	bashcpp
theme	RDark

FPWCSApi2Room kFPWCSRoomParticipantEventPublished participantCallback, FPWCSApi2RoomParticipant play код

[room on:kFPWCSRoomParticipantEventPublished participantCallback:^(FPWCSApi2Room *room, FPWCSApi2RoomParticipant *participant) {
    ParticipantView *pv = [busyViews valueForKey:[participant getName]];
    if (pv) {
        [participant play:pv.display];
    }
}];

...

FPWCSApi2Room onMessageCallback код

Code Block

language	bashcpp
theme	RDark

[room onMessageCallback:^(FPWCSApi2Room *room, FPWCSApi2RoomMessage *message) {
    _messageHistory.text = [NSString stringWithFormat:@"%@\n%@ - %@", _messageHistory.text, message.from, message.text];
}];

...

Методу передается текст сообщения.

Code Block

language	bashcpp
theme	RDark

- (void)sendButton:(UIButton *)button {
    for (NSString *name in [room getParticipants]) {
        FPWCSApi2RoomParticipant *participant = [room getParticipants][name];
        [participant sendMessage:_messageBody.text];
    }
    _messageHistory.text = [NSString stringWithFormat:@"%@\n%@ - %@", _messageHistory.text, _connectLogin.input.text, _messageBody.text];
    _messageBody.text = @"";
}

...

FPWCSApi2Stream unmuteAudio, muteAudio, unmuteVideo, muteVideo код

Code Block

language	bashcpp
theme	RDark

- (void)muteAudioChanged:(id)sender {
    if (publishStream) {
        if (_muteAudio.control.isOn) {
            [publishStream muteAudio];
        } else {
            [publishStream unmuteAudio];
        }
    }
}

- (void)muteVideoChanged:(id)sender {
    if (publishStream) {
        if (_muteVideo.control.isOn) {
            [publishStream muteVideo];
        } else {
            [publishStream unmuteVideo];
        }
    }
}

...

FPWCSApi2Room unpublish

Code Block

language	bashcpp
theme	RDark

- (void)publishButton:(UIButton *)button {
    [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text isEqualToString:@"STOP"]) {
        [room unpublish];
    } else {
        FPWCSApi2StreamOptions * options = [[FPWCSApi2StreamOptions alloc] init];
        options.record = [_record.control isOn];
        publishStream = [room publish:_localDisplay withOptions:options];
        [publishStream on:kFPWCSStreamStatusPublishing callback:^(FPWCSApi2Stream *rStream){
            [self changeViewState:_publishButton enabled:YES];
            [self changeLocalStatus:rStream];
            [_publishButton setTitle:@"STOP" forState:UIControlStateNormal];
            [self changeViewState:_muteAudio enabled:YES];
            [self changeViewState:_muteVideo enabled:YES];
            [self changeViewState:_record enabled:NO];
        }];
        
        [publishStream on:kFPWCSStreamStatusUnpublished callback:^(FPWCSApi2Stream *rStream){
            [self onUnpublished];
            [self changeLocalStatus:rStream];
        }];
        
        [publishStream on:kFPWCSStreamStatusFailed callback:^(FPWCSApi2Stream *rStream){
            [self onUnpublished];
            [self changeLocalStatus:rStream];
    
        }];

    ...
    }
}

12. Выход из комнаты конференции.

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Методу передается хэндлер для обработки ответа REST-приложения WCS-сервера.

Code Block

language	bashcpp
theme	RDark

if ([button.titleLabel.text isEqualToString:@"LEAVE"]) {
    if (room) {
        FPWCSApi2DataHandler *handler = [[FPWCSApi2DataHandler alloc] init];
        handler.onAccepted = ^(FPWCSApi2Session *session, FPWCSApi2Data *data){
            [self onUnpublished];
            [self onLeaved];
        };
        handler.onRejected = ^(FPWCSApi2Session *session, FPWCSApi2Data *data){
            [self onUnpublished];
            [self onLeaved];
        };
        [room leave:handler];
        room = nil;
    }
}

...

FPWCSApi2RoomManager disconnect код

Code Block

language	bashcpp
theme	RDark

- (void)connectButton:(UIButton *)button {
    [self changeViewState:button enabled:NO];
    if ([button.titleLabel.text isEqualToString:@"DISCONNECT"]) {
        if (roomManager) {
            [roomManager disconnect];
        }
    } else {
        //todo check url is not empty
        [self changeViewState:_connectUrl enabled:NO];
        [self changeViewState:_connectLogin.input enabled:NO];
        [self connect];  ...
    }
}

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Old Version 4

New Version 5

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Пример iOS-приложения для видеоконференции

Работа с кодом примера