问题
I currently use AVAudioPlayer to play music while in the foreground, but when I press the home button my application goes to the background and the music stops. I set the category for my AVAudioSession to AVAudioSessionCategoryPlayback and set active to YES. Additionally, I added the audio key to UIBackgroundModes in my Info.plist.
Is there anything else I need to do to enable background music playback?
回答1:
There's apparently a bug in the simulator - it doesn't work there, while it works fine on the device.
(Edit: and by "doesn't work" I mean the sound stops when the app enters background, yet the player's status remains "playing" and it seems to keep "playing", although you can't hear it).
来源：https://stackoverflow.com/questions/3421128/how-do-you-use-avaudioplayer-to-play-music-while-in-the-background