iOS8 AVAudioSession setActive错误 [英] iOS8 AVAudioSession setActive error

问题描述

我在XCode 6中测试我的应用程序并在iOS8中发现了AVAudioSession的问题。

I'm testing my app in XCode 6 and find an issue with AVAudioSession in iOS8.

当我打电话时

[[AVAudioSession sharedInstance] setActive：NO er​​ror：nil];

[[AVAudioSession sharedInstance] setActive:NO error:nil];

我得到了以下错误消息：

I get the following error message:

AVAudioSession.mm:623： - [AVAudioSession setActive：withOptions：error：]：
停用音频已运行I / O的会话。在停用音频会话之前，所有I / O应该是
停止或暂停。

AVAudioSession.mm:623: -[AVAudioSession setActive:withOptions:error:]: Deactivating an audio session that has running I/O. All I/O should be stopped or paused prior to deactivating the audio session.

在AVAudioSession.h中，它说

In AVAudioSession.h, it says

请注意，如果会话在运行或暂停时设置为非活动状态，此方法将在iOS 8上或之后链接的应用中引发异常I / O（例如音频队列，播放器，录像机，转换器，远程
I / O等）。

Note that this method will throw an exception in apps linked on or after iOS 8 if the session is set inactive while it has running or paused I/O (e.g. audio queues, players, recorders, converters, remote I/Os, etc.).

但我不知道如何检查是否有运行的I / O以及如何在需要重置音频会话时处理所有内容。

But I'm not sure how can I check if there's running I/O and how can I dispose all when I need to reset the audio session.

推荐答案

我解决了这个问题，在AVAudioPlayerDelegate的方法中插入此代码。

I solved this problem, inserting this code in the method of AVAudioPlayerDelegate.

-(void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player successfully:(BOOL)flag{
  [audioPlayer stop];
  [audioPlayer prepareToPlay];
}

其中audioPlayer是我班级标题中声明的变量。

where audioPlayer is a variable declared in the header of my class.

指令prepareToPlay应解决您的问题！

the instruction prepareToPlay should resolve your problem!

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