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ios - AVAudioPlayer prepareToPlay callback in iPhone ...
https://stackoverflow.com/questions/8379669/avaudioplayer-preparetoplay-callback-in-iphone#:~:text=prepareToPlay%20Prepares%20the%20audio%20player%20for%20playback%20by,play%20method%20and%20the%20start%20of%20sound%20output.
Sound not playing when App in background …
https://stackoverflow.com/questions/16266112/sound-not-playing-when-app-in-background-preparetoplay-returns-no
AVAudioPlayer.PrepareToPlay Method (AVFoundation ...
https://docs.microsoft.com/en-us/dotnet/api/avfoundation.avaudioplayer.preparetoplay
AVAudioPlayer cannot play music with a NSTimer in background
https://www.py4u.net/discuss/2784061
AVAudioPlayer cannot play music with a NSTimer in background . I want to play music with an AVAudioPlayer using an NSTimer, but [player prepareToPlay] returns NO & doesn't play in the background. Can somebody give me some idea? Here's my code: - (BOOL)application: ...
AVAudioPlayer play() method play a… | Apple Developer …
https://developer.apple.com/forums/thread/687919
Processing method of IOS video interrupt background music ...
https://developpaper.com/processing-method-of-ios-video-interrupt-background-music-playing/
With this class, calling preparetoplay of avaudioplayer will return yes, but calling play method will return No. The main UI interface works as usual. At this time, even if your device screen is locked by the user, the recording of the application will continue. AVAudioSessionCategoryPlayback
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