Google Cast SDKを使ったAndroid／iOSアプリの作り方と注意点：Chromecastアプリ開発入門（終）（5/6 ページ）

self.deviceScanner = [[GCKDeviceScanner alloc] init];
GCKFilterCriteria *filterCriteria = [[GCKFilterCriteria alloc] init];
filterCriteria = [GCKFilterCriteria criteriaForAvailableApplicationWithID:@"APPLICATION_ID"];
self.deviceScanner.filterCriteria = filterCriteria;
[self.deviceScanner addListener:self];
[self.deviceScanner startScan];

#pragma mark - GCKDeviceScannerListener
- (void)deviceDidComeOnline:(GCKDevice *)device {
    // Chromecastデバイスが見つかったときに呼び出される
    NSLog(@"device found!!!");
}
 
- (void)deviceDidGoOffline:(GCKDevice *)device {
    // 見つかっていたChromecastデバイスを見失ったときに呼び出される
    NSLog(@"device disappeared!!!");
}

GCKDevice *selectedDevice = ...; //ユーザーが選択したデバイス
 
deviceManager = [[GCKDeviceManager alloc] initWithDevice:selectedDevice
   clientPackageName:[info objectForKey:@"CFBundleIdentifier"]];
 
deviceManager.delegate = self;
[self.deviceManager connect];

#pragma mark - GCKDeviceManagerDelegate
- (void)deviceManagerDidConnect:(GCKDeviceManager *)deviceManager {
    // 接続が成功したときに呼び出される
    NSLog(@"connected!!");
    // Receiverアプリを起動
    [self.deviceManager launchApplication:@"APPLICATION_ID"];
}
- (void)deviceManager:(GCKDeviceManager *)deviceManager
		didFailToConnectWithError:(NSError *)error{
    // 接続が失敗したときに呼び出される
    NSLog(@"Connection failed!!");
}
- (void)deviceManager:(GCKDeviceManager *)deviceManager
    didConnectToCastApplication:(GCKApplicationMetadata *)applicationMetadata
                      sessionID:(NSString *)sessionID
            launchedApplication:(BOOL)launchedApp {
    // Receiverアプリと接続したときに呼び出される
    NSLog(@"Application connected!!");
}

self.mediaControlChannel = [[GCKMediaControlChannel alloc] init];
self.mediaControlChannel.delegate = self;
[self.deviceManager addChannel:self.mediaControlChannel];

#pragma mark - GCKMediaControlChannelDelegate
 
- (void)mediaControlChannelDidUpdateStatus:(GCKMediaControlChannel *)mediaControlChannel
{
    // メディアプレーヤーの状態が更新されたときに呼び出される
    switch (mediaControlChannel.mediaStatus.playerState) {
        case GCKMediaPlayerStatePlaying:
            NSLog(@"Status : Playing");
            break;
        case GCKMediaPlayerStatePaused:
            NSLog(@"Status : Plaused");
            break;
        case GCKMediaPlayerStateIdle:
            NSLog(@"Status : Idle");
            break;
        case GCKMediaPlayerStateBuffering:
            NSLog(@"Status : Buffering");
            break;
        case GCKMediaPlayerStateUnknown:
        default:
            NSLog(@"Status : Unknown");
            break;
    }
}
 
- (void)mediaControlChannelDidUpdateMetadata:(GCKMediaControlChannel *)mediaControlChannel
{
    // メディアプレーヤーのメタデータが更新されたときに呼び出される
    NSLog(@"metadata updated.");
}

// メタデータの作成
GCKMediaMetadata *metadata = [[GCKMediaMetadata alloc] init];
[metadata setString:title forKey:kGCKMetadataKeyTitle];
[metadata setString:subtitle forKey:kGCKMetadataKeySubtitle];
[metadata addImage:[[GCKImage alloc] initWithURL:thumbnailURL width:200 height:100]];
 
// GCKMediaInformationインスタンス作成
GCKMediaInformation *mediaInformation =
    [[GCKMediaInformation alloc] initWithContentID:@"http://your.server.com/video.mp4"
                                        streamType:GCKMediaStreamTypeNone
                                       contentType:mimeType
                                          metadata:metaData
                                    streamDuration:123
                                        customData:customDataJson];
 
// 動画のロードと再生開始
[_mediaControlChannel loadMedia:mediaInformation autoplay:autoPlay playPosition:startTime];

// 一時停止
[_mediaControlChannel pause];
 
//シーク
NSTimeInterval position = 60.0;
[_mediaControlChannel seekToTimeInterval:position];