web-dev-qa-db-ja.com

ヘッドフォンは接続されていますか？ iOS7

ヘッドフォンでも聞く必要があるオーディオファイルを使用したiPhone用アプリの開発。

ヘッドフォンが接続されていないかどうかを確認して、ユーザーにヘッドフォンを接続するように指示するにはどうすればよいですか。

別のスレッドからの次のコードがありますが、audioSessionGetPropertyメソッドは非推奨です。この作業を行うために次のコードを変更する方法は誰でも知っていますOR独自のコード/ソリューションがあります。

ありがとう。

- (BOOL)isHeadsetPluggedIn {
    UInt32 routeSize = sizeof (CFStringRef);
    CFStringRef route;


    //Maybe changing it to something like the following would work for iOS7?
    //AVAudioSession* session = [AVAudioSession sharedInstance];
    //OSStatus error = [session setCategory:kAudioSessionProperty_AudioRoute...?


    //the line below is whats giving me the warning
    OSStatus error = AudioSessionGetProperty (kAudioSessionProperty_AudioRoute,
                                              &routeSize,
                                              &route);

    /* Known values of route:
     * "Headset"
     * "Headphone"
     * "Speaker"
     * "SpeakerAndMicrophone"
     * "HeadphonesAndMicrophone"
     * "HeadsetInOut"
     * "ReceiverAndMicrophone"
     * "Lineout"
     */

    if (!error && (route != NULL)) {

        NSString* routeStr = (__bridge NSString*)route;

        NSRange headphoneRange = [routeStr rangeOfString : @"Head"];

        if (headphoneRange.location != NSNotFound) return YES;

    }

    return NO;
}
iosios7avaudioplayeravaudiosessionheadphones
63
4GetFullOf

これは機能するはずですが、今はテストできません。夕方にテストします。

- (BOOL)isHeadsetPluggedIn {
    AVAudioSessionRouteDescription* route = [[AVAudioSession sharedInstance] currentRoute];
    for (AVAudioSessionPortDescription* desc in [route outputs]) {
        if ([[desc portType] isEqualToString:AVAudioSessionPortHeadphones])
            return YES;
    }
    return NO;
}
116
Antonio E.

@Antonioの答えを拡張するだけです。ユーザーがヘッドフォンを抜き取ったか、差し込んだかどうかを検出する必要がある場合。

#import <AVFoundation/AVFoundation.h>

// [AVAudioSession sharedInstance]; // @Boris edited: you may need it if there is no `AVAudioSession instance` created before. If doesn't work, uncomment this line.
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioRouteChangeListenerCallback:)
                                             name:AVAudioSessionRouteChangeNotification
                                           object:nil];
// don't forget to `removeObserver:`

// If the user pulls out he headphone jack, stop playing.
- (void)audioRouteChangeListenerCallback:(NSNotification*)notification
{
    NSDictionary *interuptionDict = notification.userInfo;

    NSInteger routeChangeReason = [[interuptionDict valueForKey:AVAudioSessionRouteChangeReasonKey] integerValue];

    switch (routeChangeReason) {

        case AVAudioSessionRouteChangeReasonNewDeviceAvailable:
            NSLog(@"AVAudioSessionRouteChangeReasonNewDeviceAvailable");
            NSLog(@"Headphone/Line plugged in");
            break;

        case AVAudioSessionRouteChangeReasonOldDeviceUnavailable:
            NSLog(@"AVAudioSessionRouteChangeReasonOldDeviceUnavailable");
            NSLog(@"Headphone/Line was pulled. Stopping player....");
            break;

        case AVAudioSessionRouteChangeReasonCategoryChange:
            // called at start - also when other audio wants to play
            NSLog(@"AVAudioSessionRouteChangeReasonCategoryChange");
            break;
    }
}
59
Warif Akhand Rishi

スウィフト3：

ヘッドフォンが接続されているかどうかを確認するには

_extension AVAudioSession {

    static var isHeadphonesConnected: Bool {
        return sharedInstance().isHeadphonesConnected
    }

    var isHeadphonesConnected: Bool {
        return !currentRoute.outputs.filter { $0.isHeadphones }.isEmpty
    }

}

extension AVAudioSessionPortDescription {
    var isHeadphones: Bool {
        return portType == AVAudioSessionPortHeadphones
    }
}
_

その後、あなたはただprint("isHeadphones connected: \(AVAudioSession.isHeadphonesConnected)")

変更を聞く

Swiftでは、構文は次のとおりです。

_func handleRouteChange(_ notification: Notification) {
    guard
    let userInfo = notification.userInfo,
    let reasonRaw = userInfo[AVAudioSessionRouteChangeReasonKey] as? NSNumber,
    let reason = AVAudioSessionRouteChangeReason(rawValue: reasonRaw.uintValue)
    else { fatalError("Strange... could not get routeChange") }
    switch reason {
    case .oldDeviceUnavailable:
        print("oldDeviceUnavailable")
    case .newDeviceAvailable:
        print("newDeviceAvailable") 
        if AVAudioSession.isHeadphonesConnected {
             print("Just connected headphones")
        } 
    case .routeConfigurationChange:
        print("routeConfigurationChange")
    case .categoryChange:
        print("categoryChange")
    default:
        print("not handling reason")
    }
}

func listenForNotifications() {
    NotificationCenter.default.addObserver(self, selector: #selector(handleRouteChange(_:)), name: NSNotification.Name.AVAudioSessionRouteChange, object: nil)
}
_

以下の使用に注意してください。

_ if AVAudioSession.isHeadphonesConnected {
    print("Just connected headphones")
 }
_
10
Sajjon

Swift 2.の@Warifのコードはほとんど変更なし...

func audioRouteChangeListenerCallback (notif: NSNotification){
        let userInfo:[NSObject:AnyObject] = notif.userInfo!
        println("\(userInfo)")
        let routChangeReason = UInt((userInfo[AVAudioSessionRouteChangeReasonKey]?.integerValue)!)
        switch routChangeReason {
        case AVAudioSessionRouteChangeReason.NewDeviceAvailable.rawValue:
            self.println("Headphone/Line plugged in");
            break;

        case AVAudioSessionRouteChangeReason.OldDeviceUnavailable.rawValue:
            //If the headphones was pulled move to speaker
            do {
                try AVAudioSession.sharedInstance().overrideOutputAudioPort(AVAudioSessionPortOverride.Speaker)
            } catch _ {
            }
            self.println("Headphone/Line was pulled. Stopping player....");
            break;

        case AVAudioSessionRouteChangeReason.CategoryChange.rawValue:
            // called at start - also when other audio wants to play
            self.println("AVAudioSessionRouteChangeReasonCategoryChange");
            break;
        default:
            break;
        }
    }

：D

4
Husam

In Swift（1.2現在）：

    func headsetPluggedIn() -> Bool {
    let route = AVAudioSession.sharedInstance().currentRoute
    return (route.outputs as! [AVAudioSessionPortDescription]).filter({ $0.portType == AVAudioSessionPortHeadphones }).count > 0
}
3
Mike Sprague

Swift 3.0バージョン

  • ヘッドフォンが接続されているか、オーディオ出力が接続されているBluetoothデバイスを確認する方法
 func bluetoothOrHeadphonesConnected（）-> Bool {
 
 let outputs = AVAudioSession.sharedInstance（）。currentRoute.outputs 
 
 
 
 output.portType == AVAudioSessionPortBluetoothA2DP || 
 output.portType == AVAudioSessionPortBluetoothHFP || 
 output.portType == AVAudioSessionPortBluetoothLE || 
 output.portType == AVAudioSessionPortHeadphones {
 return true 
} 
 
} 
 
 return false 
}
  • 音声を聞きながらヘッドフォンが接続されているかどうかを確認することが重要です。
 
 private func setupObservers（）{
 
 NotificationCenter.default.addObserver（self、selector：#selector（self.audioRouteChangeListener）、name：.AVAudioSessionRouteChange、object：nil）
 
} 
 
 func audioRouteChangeListener（notification：Notification）{
 
 guard let audioRouteChangeReason = notification.userInfo！[AVAudioSessionRouteChangeReasonKey] as？ Int else {return} 
 
 switch audioRouteChangeReason {
 
 case AVAudioSessionRouteChangeReason.oldDeviceUnavailable.hashValue：
 // plugged out 
 
 default：
 break 
 
} 
 
}
3
Pedro Silva
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(plugout:) name:AVAudioSessionRouteChangeNotification object:nil];
-(void)plugout:(NSNotification*)notification
{
    isRemovedHeadset = YES;
}

そして、このisRemovedHeadsetブール値を使用してコードを処理します

if (moviePlayer.playbackState == MPMoviePlaybackStatePaused) 
{
    if(isRemovedHeadset)
    {
        isRemovedHeadset = NO;
        [moviePlayer prepareToPlay];
        [moviePlayer play];
        return;
    }
}
0
Hardik Mamtora

RxSwiftでのSwift 5の@Sajjonソリューション

func handleRouteChange(_ notification: Notification) {
    guard
        let userInfo = notification.userInfo,
        let reasonRaw = userInfo[AVAudioSessionRouteChangeReasonKey] as? NSNumber,
        let reason = AVAudioSession.RouteChangeReason(rawValue: reasonRaw.uintValue)
        else { fatalError("Strange... could not get routeChange") }
    switch reason {
    case .oldDeviceUnavailable:
        print("oldDeviceUnavailable")
    case .newDeviceAvailable:
        print("newDeviceAvailable")
        if AVAudioSession.isHeadphonesConnected {
            print("Just connected headphones")
        }
    case .routeConfigurationChange:
        print("routeConfigurationChange")
    case .categoryChange:
        print("categoryChange")
    default:
        print("not handling reason")
    }
}

func listenForNotifications() {
    NotificationCenter.default.rx
        .notification(AVAudioSession.routeChangeNotification)
        .subscribe(onNext: { (n) in
            self.handleRouteChange(n)
        })
        .disposed(by: disposeBag)
}
0
mazy