我可以从kAudioSessionProperty_AudioRoute属性返回什么样的路线？

Question

苹果家伙试图搞笑并在文档中写道:

("Headphone," "Speaker," etc.)

现实中可能有什么样的回报值？

Answer 1

我在CoreMedia框架(iOS4.2 SDK)上运行'字符串',以下字符串似乎合理并组合在一起:

• ReceiverAndMicrophone
• HeadsetInOut
• HeadphonesAndMicrophone
• SpeakerAndMicrophone
• HeadsetBT
• LineInOut
• 默认

命令是:

strings -a -o CoreMedia | less

# CoreMedia is from /Developer/Platforms/iPhoneOS.platform/Developer \
# /SDKs/iPhoneOS4.2.sdk/System/Library/Frameworks/CoreMedia.framework

Answer 2

他并不是在开玩笑，这些都是真实的价值观。我见过他唯一没有概述的是“LineOut”