在后台播放音乐：AVAudioSessionInterruptionNotification未被触发

本文介绍了在后台播放音乐：AVAudioSessionInterruptionNotification未被触发的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我的应用正在背景中播放。 暂停和播放也可以正常运行，即使我的应用是后台使用 AVAudioSessionInterruptionNotification 。

My app is playing in background well. Pause and play also works well even my app is background using the methods registered for AVAudioSessionInterruptionNotification.

问题到达方案的步骤：

启动我的应用程序 - >从我的应用程序中播放背景音乐

启动Apple的音乐应用程序并播放。 AVAudioSessionInterruptionNotification已解雇。

当我暂停音乐应用或杀死音乐应用时。 AVAudioSessionInterruptionNotification不会被解雇

Launch my app -> goes background music from my app playing well

launch apple's music app and play. AVAudioSessionInterruptionNotification fired.

When i pause the music app or kill the music app. AVAudioSessionInterruptionNotification doesn't get fired

代码：我在中这样做的appdelegate 即可。 didfinishlaunching

NSError *sessionError = nil; [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:&sessionError]; [[AVAudioSession sharedInstance] setActive:YES error: nil]; self.player = [[AVQueuePlayer alloc] initWithURL:[NSURL URLWithString:@"someurl:8040/;stream.mp3"]]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onAudioSessionEvent:) name:AVAudioSessionInterruptionNotification object:nil]; - (void) onAudioSessionEvent: (NSNotification *) notification { //Check the type of notification, especially if you are sending multiple AVAudioSession events here NSLog(@"Interruption notification name %@", notification.name); if ([notification.name isEqualToString:AVAudioSessionInterruptionNotification]) { NSLog(@"Interruption notification received %@!", notification); //Check to see if it was a Begin interruption if ([[notification.userInfo valueForKey:AVAudioSessionInterruptionTypeKey] isEqualToNumber:[NSNumber numberWithInt:AVAudioSessionInterruptionTypeBegan]]) { NSLog(@"Interruption began!"); } else if([[notification.userInfo valueForKey:AVAudioSessionInterruptionTypeKey] isEqualToNumber:[NSNumber numberWithInt:AVAudioSessionInterruptionTypeEnded]]){ NSLog(@"Interruption ended!"); //Resume your audio NSLog(@"Player status %i", self.player.status); // Resume playing the audio. [self.player play]; } } }

推荐答案

尝试添加对象：session

Try to add object:session

[[NSNotificationCenter defaultCenter] addObserver：self selector： @selector（onAudioSessionEvent :) name：AVAudioSessionInterruptionNotification object：[AVAudioSession sharedInstance]];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onAudioSessionEvent:) name:AVAudioSessionInterruptionNotification object:[AVAudioSession sharedInstance]];