AudioSessionInitialize的修復已過時？

Question

Apple在蘋果開發者網站上沒有發佈任何其他代碼。

Answer 1

您應該使用AVAudioSession。

以取代過時AudioSessionInitialize提供（例如，如果你需要指定AudioSessionInterruptionListener回調）的功能，你可以訂閱AVAudioSessionInterruptionNotification通知：喜歡處理：

- (void)audioSessionDidChangeInterruptionType:(NSNotification *)notification 
{ 
    AVAudioSessionInterruptionType interruptionType = [[[notification userInfo] 
     objectForKey:AVAudioSessionInterruptionTypeKey] unsignedIntegerValue]; 
    if (AVAudioSessionInterruptionTypeBegan == interruptionType) 
    { 
    } 
    else if (AVAudioSessionInterruptionTypeEnded == interruptionType) 
    { 
    } 
} 

Answer 2

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioSessionDidChangeInterruptionType:) 
     name:AVAudioSessionInterruptionNotification object:[AVAudioSession sharedInstance]]; 

和實現audioSessionDidChangeInterruptionType

與

的等效代碼

// C way 
UInt32 category = kAudioSessionCategory_MediaPlayback ; 
OSStatus result = AudioSessionSetProperty(
    kAudioSessionProperty_AudioCategory, sizeof(category), &category) ; 

if(result) // handle the error 

是

// Objective-C way 
NSError *nsError; 
[[AVAudioSession sharedInstance] 
    setCategory:AVAudioSessionCategoryPlayback error:&nsError]; 

if(nsError != nil) // handle the error 

Answer 3

1. 此代碼

AudioSessionInitialize(NULL, NULL, interruptionCallback, self); 

與

[[AVAudioSession sharedInstance] setActive:YES error:nil]; 

2. 更換來回此代碼

UInt32 sessionCategory = kAudioSessionCategory_PlayAndRecord; 
AudioSessionSetProperty(
     kAudioSessionProperty_AudioCategory, 
     sizeof(sessionCategory), 
     &sessionCategory 
     ); 

更換

UInt32 sessionCategory = kAudioSessionCategory_PlayAndRecord; 
[[AVAudioSession sharedInstance] 
    setCategory:sessionCategory error:nil]; 

Answer 4

public void EnableSpeaker(bool speaker) 
{ 
    if (AVAudioSession.SharedInstance().SetActive(true, out NSError outError)) 
    { 
    AudioSession.OverrideCategoryDefaultToSpeaker = speaker; 
    } 
}