objective c - iPhone: 'endInterruption' is not being called for an <AVAudioSessionDelegate> Class -

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i have sound manager class implements avaudiosessiondelegate protocol, i.e. begininterruption , endinterruption methods.

however, when ring phone , go app, neither method gets called , app thereafter silent. tested using both debugger , using nslog calls.

the sound manager class uses openal.

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my class declared so:

@interface cmopenalsoundmanager : nsobject <avaudioplayerdelegate, avaudiosessiondelegate>

and delegate implementations follows:

- (void)begininterruption {     [self setactivated:no]; } - (void)audioplayerbegininterruption {     [self setactivated:no]; }  - (void)endinterruption {     [self setactivated:yes]; } - (void)audioplayerendinterruption {     [self setactivated:yes]; }

where setactivated:(bool)state contains code start , stop sound manager.

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i can't see reason delegate methods not called - perhaps there forgetting when start sound manager or set audio properties etc?

or blatantly missing more obvious :o

any ideas appreciated!

this seems bug in ios. there various conditions in endinterruption callback not called. i've done check whether app playing audio in applicationwillenterforeground method (or precise: i've registered corresponding notification don't have in app delegate). can check via audiosessiongetproperty , kaudiosessionproperty_otheraudioisplaying.


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