Audio playing while app in background iOS

Question

I have an app mostly based around Core Bluetooth. When something specific happens, the app is woken up using Core Bluetooth background modes and it fires off an alarm, however I

Answer 1

I was also facing the same problem, but i was only facing it only during initial time when i was trying to play a sound while app was in background, once the app comes in foreground and i play the sound once than it works in background also.

So as soon as app is launched/ login is successful in my case, i was running this code:

[self startRingcall];
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3.0f * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        [self stopRingcall];
    });
- (void)startRingcall
{
    if( self.audioPlayer )
        [self.audioPlayer stop];
    NSURL* musicFile = [NSURL fileURLWithPath:[[[UILayer sharedInstance] getResourceBundle] pathForResource:@"meetcalling" ofType:@"caf"]];
    NSError *error;
    self.audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:musicFile error:&error];
    [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];
    [[AVAudioSession sharedInstance] setActive: YES error: nil];
    if (error != nil) {
        NSLog(@"meetringer sound error -> %@",error.localizedDescription);
    }
    self.audioPlayer.volume = 0;
    [self.audioPlayer play];
    self.audioPlayer.numberOfLoops = 1;
}

- (void)stopRingcall
{
    if( self.audioPlayer )
        [self.audioPlayer stop];
    self.audioPlayer = nil;
}