音声アプリにおけるバックグラウンド再生Tips.pdf

Transcript

1. Ի੠ΞϓϦʹ͓͚Δ
   όοΫάϥ΢ϯυ࠶ੜ
   Tips
   entaku
   

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2. entaku
   • Name: entaku
   
   
   • Job: iOS/AndroidΤϯδχΞͳͲ
   
   
   • SIer໿6೥
   
   
   • εϙʔπϚονϯάΞϓϦ1೥
   
   
   • ෺ྲྀITαʔϏε ໿2೥
   
   
   • Voicy ->New
   
   
   • Twitter
   
   
   • @entaku_0818
   

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3. Voicy
   https://corp.voicy.jp/
   https://voicy.jp/
   

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4. Voicy
   https://apps.apple.com/jp/app/voicy-recorder/id1115553195
   iOS Android
   

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5. ࠓճͷςʔϚ
   

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6. ໰୊
   • Voicyௌ͖ͳ͕ΒଞͷԻָྲྀΕΔܥίϯςϯπ
   ͷβοϐϯά͕Ͱ͖ͳ͍
   

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7. AVAudioSession
   https://developer.apple.com/documentation/avfaudio/avaudiose
   • ΞϓϦͰར༻͢ΔԻ੠ͷछྨͳͲΛઃఆ
   

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8. AVAudioSession
   
   
   ͷαϯϓϧίʔυ
   /// Set session category.
   
   
   @available(iOS 3.0, *)
   
   
   open func setCategory(_ category: AVAudioSession.Category) throws
   
   
   /// Set session category with options.
   
   
   @available(iOS 6.0, *)
   
   
   open func setCategory(_ category: AVAudioSession.Category, options: AVAudioSession.CategoryOptions = [])
   throws
   
   
   /// Set session category and mode with options.
   
   
   @available(iOS 10.0, *)
   
   
   open func setCategory(_ category: AVAudioSession.Category, mode: AVAudioSession.Mode, options:
   AVAudioSession.CategoryOptions = []) throws
   
   
   

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9. AVAudioSession
   
   
   ͷαϯϓϧίʔυ
   /// Set session category.
   
   
   @available(iOS 3.0, *)
   
   
   open func setCategory(_ category: AVAudioSession.Category) throws
   
   
   /// Set session category with options.
   
   
   @available(iOS 6.0, *)
   
   
   open func setCategory(_ category: AVAudioSession.Category, options: AVAudioSession.CategoryOptions = [])
   throws
   
   
   /// Set session category and mode with options.
   
   
   @available(iOS 10.0, *)
   
   
   open func setCategory(_ category: AVAudioSession.Category, mode: AVAudioSession.Mode, options:
   AVAudioSession.CategoryOptions = []) throws
   
   
   • VoicyͰར༻
   

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10. AVAudioSession - category
    • soloAmbient
    
    
    • ΦʔσΟΦΛόοΫάϥϯυΦʔσΟΦͱϛοΫε͠ͳ͍ΞϓϦ༻ʢσϑΥϧτʣ
    ͷΧςΰϦͰ͢ɻ
    
    
    • ambient
    
    
    • ΦʔσΟΦΛόοΫάϥϯυΦʔσΟΦͱϛοΫε͢ΔΞϓϦ༻ʢϘλϯԻ΍
    ΧʔφϏԻ੠Ҋ಺ͷΈͳͲʣͷΧςΰϦͰ͢ɻ
    
    
    • playback
    
    
    • ΦʔσΟΦ࠶ੜ༻ͷΧςΰϦͰ͢ɻ
    
    
    • record
    
    
    • ΦʔσΟΦ࿥Ի༻ͷΧςΰϦͰ͢ɻ
    https://developer.apple.com/documentation/avfaudio/avaudiosession/category
    

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11. AVAudioSession - category
    • playAndRecord
    
    
    • ΦʔσΟΦ࠶ੜͱ࿥ԻΛ྆ํߦ͏ΞϓϦ༻ʢVoIPͳͲʣͷΧςΰϦͰ͢ɻ
    
    
    • multiRoute
    
    
    • ΦʔσΟΦΛҟͳΔσόΠεʹಉ࣌ग़ྗ͢ΔΞϓϦ༻ͷΧςΰϦͰ͢ɻ
    https://developer.apple.com/documentation/avfaudio/avaudiosession/category
    

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12. AVAudioSession - Mode
    • default
    
    
    • σϑΥϧτͷϞʔυͰ͢ɻ
    
    
    • gameChat
    
    
    • ήʔϜνϟοτͰͷར༻Λࣔ͢ϞʔυͰ͢ɻ
    
    
    • measurement
    
    
    • ΦʔσΟΦೖग़ྗͷଌఆͰͷར༻Λࣔ͢ϞʔυͰ͢ɻ
    
    
    • moviePlayback
    
    
    • өը࠶ੜͰͷར༻Λࣔ͢ϞʔυͰ͢ɻ
    https://developer.apple.com/documentation/avfaudio/avaudiosession/category
    

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13. AVAudioSession - Mode
    • spokenAudio
    
    
    • Ի੠ͷׂΓࠐΈ͕͋ΔΞϓϦͰͷར༻Λࣔ͢ϞʔυͰ͢ɻΧʔφϏԻ੠Ҋ಺ͳͲɺ୹ׂ͍ΓࠐΈͷࡍʹ࠶ੜதͷ΋
    ͷΛҰ࣌ఀࢭ͠ɺऴΘΓ࣍ୈ࠶։͠·͢ɻ
    
    
    • videoChat
    
    
    • ΦϯϥΠϯϏσΦձٞͰͷར༻Λࣔ͢ϞʔυͰ͢ɻ
    
    
    • videoRecording
    
    
    • ಈը࿥ըͰͷར༻Λࣔ͢ϞʔυͰ͢ɻ
    
    
    • voiceChat
    
    
    • VoIPͳͲͷ૒ํ޲ͷԻ੠௨৴Ͱͷར༻Λࣔ͢ϞʔυͰ͢ɻ
    
    
    • voicePrompt
    
    
    • ςΩετಡΈ্͛Λ࢖༻ͨ͠Ի੠࠶ੜͰͷར༻Λࣔ͢ϞʔυͰ͢ɻ
    https://developer.apple.com/documentation/avfaudio/avaudiosession/mode/
    

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14. AVAudioSession - Option
    • mixWithOthers
    
    
    • ΦʔσΟΦ͕όοΫάϥ΢ϯυΦʔσΟΦͱϛοΫε͢Δ͜ͱΛࣔ͢Φϓγϣϯɻ
    
    
    • duckOthers
    
    
    • ΦʔσΟΦ࠶ੜ࣌ʹɺόοΫάϥ΢ϯυΦʔσΟΦͷԻྔΛԼ͛ΔΦϓγϣϯɻ
    
    
    • InterruptSpokenAudioAndMixWithOthers
    
    
    • ΦʔσΟΦΛ࠶ੜ࣌ʹɺόοΫάϥ΢ϯυΦʔσΟΦΛҰ࣌ఀࢭ͢Δ͔Ͳ͏͔Λܾఆ͢ΔΦ
    ϓγϣϯɻ
    
    
    • allowBluetooth
    
    
    • BluetoothϋϯζϑϦʔσόΠεΛ࢖༻Մೳͳೖྗϧʔτͱͯ͠දࣔ͢Δ͔Ͳ͏͔Λܾఆ͢Δ
    Φϓγϣϯɻ
    https://developer.apple.com/documentation/avfaudio/avaudiosession/
    categoryoptions
    

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15. AVAudioSession - Option
    • spokenAudio
    
    
    • Ի੠ͷׂΓࠐΈ͕͋ΔΞϓϦͰͷར༻Λࣔ͢ϞʔυͰ͢ɻΧʔφϏԻ੠Ҋ಺ͳͲɺ୹ׂ͍ΓࠐΈͷࡍʹ࠶ੜதͷ΋
    ͷΛҰ࣌ఀࢭ͠ɺऴΘΓ࣍ୈ࠶։͠·͢ɻ
    
    
    • videoChat
    
    
    • ΦϯϥΠϯϏσΦձٞͰͷར༻Λࣔ͢ϞʔυͰ͢ɻ
    
    
    • videoRecording
    
    
    • ಈը࿥ըͰͷར༻Λࣔ͢ϞʔυͰ͢ɻ
    
    
    • voiceChat
    
    
    • VoIPͳͲͷ૒ํ޲ͷԻ੠௨৴Ͱͷར༻Λࣔ͢ϞʔυͰ͢ɻ
    
    
    • voicePrompt
    
    
    • ςΩετಡΈ্͛Λ࢖༻ͨ͠Ի੠࠶ੜͰͷར༻Λࣔ͢ϞʔυͰ͢ɻ
    https://developer.apple.com/documentation/avfaudio/avaudiosession/categoryoptions
    

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16. AVAudioSessionͬͯͨ͘͞Μ
    ઃఆ͕͋ΔΜͩͶʂ
    

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17. Ͱ݁ہͲ͏͢Μͷʁ
    

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18. AVAudioSession
    
    
    ͷαϯϓϧίʔυ
    ɹɹɹɹɹtry? audioSession.setCategory(AVAudioSession.Category.playback)
    
    
    OR
    
    
    ɹɹɹɹɹtry? audioSession.setCategory(AVAudioSession.Category.soloAmbient)
    
    
    OR
    
    
    ɹɹɹɹ// background
    
    
    try? audioSession.setCategory(AVAudioSession.Category.ambient, options:
    AVAudioSession.CategoryOptions.mixWithOthers)
    
    
    ※ίʔυ͸ΠϝʔδͰ͢
    

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19. backGround͔Ͳ͏͔ͷ൑ఆ
    ɹɹɹɹɹif (secondaryAudioShouldBeSilencedHint){
    
    
    ɹ// background
    
    
    try? audioSession.setCategory(AVAudioSession.Category.ambient, options:
    AVAudioSession.CategoryOptions.mixWithOthers)
    
    
    }else{
    
    
    // forground
    
    
    // Ϣʔβʔͷঢ়ଶʹΑͬͯ࢖͍෼͚
    
    
    try? audioSession.setCategory(AVAudioSession.Category.playback)
    
    
    OR
    
    
    ɹɹɹɹɹtry? audioSession.setCategory(AVAudioSession.Category.soloAmbient)
    
    
    }
    
    
    ɹɹɹ
    
    
    ※ίʔυ͸ΠϝʔδͰ͢
    

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20. backGround͔Ͳ͏͔ͷ൑ఆ
    https://developer.apple.com/documentation/avfaudio/avaudiosession/1616600-secondaryaudioshouldbesilencedhi
    • This property returns true if any other audio is playing, including audio from
    an app using the ambient category. Most apps should instead use the
    secondaryAudioShouldBeSilencedHint property, because it’s more restrictive
    when considering whether primary audio from another app is playing.
    https://developer.apple.com/documentation/avfaudio/avaudiosession/1616610-isotheraudioplaying
    • secondaryAudioShouldBeSilencedHintΛ
    ࢖͏
    

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21. BackGround࠶ੜͰؾΛ͚ͭΔ
    ͜ͱ
    • AVAudioSessionͷछྨ͸ͨ͘͞Μ͋ΔͷͰࣗ෼ͷΞϓϦͰͲͷ
    ઃఆ͕߹͍ͬͯΔͷ͔͸֬ೝ͢Δඞཁ͕͋Δ
    
    
    • Ի੠͕όοΫάϥ΢ϯυʹདྷ͍ͯΔ͔Ͳ͏͔͸
    secondaryAudioShouldBeSilencedHintΛ࢖͏
    
    
    • isOtherAudioPlayingࣄྫ͋ͬͨΒڭ͍͑ͯͩ͘͠
    

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22. ࠷ޙʹ
    

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23. https://voicy.jp/search/entaku
    ฉ͍ͯ͘ΕΑͳ😊
    

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24. https://www.wantedly.com/projects/619248
    Ԡԉ͚ͩͯ͘͠ΕΑͳ😊
    

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