How to resume spotify player playback after interrupt when app is in background?

Question

I have an app which plays Spotify track. It works perfectly when app moves to background but when it get interrupted by 'call' or 'iOS pop-ups' it stops playing. I have added Required background modes to App plays audio in .plist. How to resume playback when interruption ended while app is in background.

Answer 1

i have used audio interruption callbacks.

AudioSessionInitialize (NULL, NULL, interruptionListenerCallback,self);
AudioSessionSetActive(YES);
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];

And after receiving interruption call play/pause method of playback manager.

void interruptionListenerCallback (void *inUserData, UInt32 interruptionState)
{
// This callback, being outside the implementation block, needs a reference
//to the AudioPlayer object
CustomPlayerView *controller = (__bridge CustomPlayerView *) inUserData;

if (interruptionState == kAudioSessionBeginInterruption)
{
   [controller.playbackManager setIsPlaying:NO];
}
else if (interruptionState == kAudioSessionEndInterruption)
{
   [controller.playbackManager setIsPlaying:YES];
}
}