Chapter 2 AudioLooper_Starter about learning-av-foundation HOT 6 CLOSED

- (void)handleInterruption:(NSNotification *)notification {
    NSDictionary *info  = notification.userInfo;
    AVAudioSessionInterruptionType type = [info[AVAudioSessionInterruptionTypeKey] unsignedIntegerValue];
    
    if (type == AVAudioSessionInterruptionTypeBegan) {
        //AVAudioSessionInterruptionTypeBegan
        [self stop];
        if ([self.delegate respondsToSelector:@selector(playbackStopped)]) {
            [self.delegate playbackStopped];
        }
    } else {
        //AVAudioSessionInterruptionTypeEnd
        AVAudioSessionInterruptionOptions options = [info[AVAudioSessionInterruptionOptionKey] unsignedIntegerValue];
        if (options == AVAudioSessionInterruptionOptionShouldResume) {
            [self play];
            if (self.delegate) {
                [self.delegate playbackBegan];
            }
        }
        NSLog(@"%lu",(unsigned long)options);
        
    }
}

/**
 音频被打断 通知事件

 @param notification 音频信息
 */
- (void)handleInterruption:(NSNotification *)notification {
    NSDictionary *info  = notification.userInfo;
    AVAudioSessionInterruptionType type = [info[AVAudioSessionInterruptionTypeKey] unsignedIntegerValue];
    
    if (type == AVAudioSessionInterruptionTypeBegan) {
        //AVAudioSessionInterruptionTypeBegan
        [self stop];
        if ([self.delegate respondsToSelector:@selector(playbackStopped)]) {
            [self.delegate playbackStopped];
        }
    } else {
        //AVAudioSessionInterruptionTypeEnd
        AVAudioSessionInterruptionOptions options = [info[AVAudioSessionInterruptionOptionKey] unsignedIntegerValue];
        if (options == AVAudioSessionInterruptionOptionShouldResume) {
            NSError *error = nil;
            [[AVAudioSession sharedInstance] setActive:YES error:&error];
            [self play];
            if (self.delegate) {
                [self.delegate playbackBegan];
            }
            if (error) { NSLog(@"Active error:%@",error); }
        }
        NSLog(@"%lu",(unsigned long)options);
        
    }
}