在后台播放AVAudioPlayer的一个实例 [英] Play one instance of AVAudioPlayer in the background

问题描述

我的应用程序中有几个AVAudioPlayer实例（在不同的类中）。我已经为一个实例添加了多任务功能，但现在所有音频都在后台播放。我在我的plist中添加了App播放音频键，并且：

I have several instances of AVAudioPlayer in my app (in separate classes). I have added multi-tasking capabilities to one instance but all audio now plays in the background. I added the 'App plays audio' key to my plist and:

    [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];
[[AVAudioSession sharedInstance] setActive: YES error: nil];

到我班上。如何将此代码仅定位到AVAudioPlayer的1个实例？

to my class. How can I target this code to only 1 instance of AVAudioPlayer?

推荐答案

我能找到的唯一方法是暂停特定的AVAudioPlayer实例：

The only way around this I could find was the pause the specific AVAudioPlayer instance in:

applicationWillResignActive

我将实例的创建移到了appdelegate，然后通过以下方式访问：

I moved the creation of the instance to the appdelegate and then accessed it via:

appDelegate = [[UIApplication sharedApplication] delegate]

在我班上。可能有更好的方法来做到这一点，但这是我能找到的最快最简单的方法。

in my class. There is probably a better way to do this but this was the quickest and simplest I could find.

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