允许用户在swift 2.0中播放背景音乐 [英] Allow users background music in swift 2.0

问题描述

我正在寻找一些代码，允许用户在使用我的应用程序时通过手机播放音乐。以前在swift 2.0之前，我会把它放在app委托中，它会完美运行：

I am looking for some code to allow the user to play music from their phone while still using my app. Previously before swift 2.0 i would put this in the app delegate and it would work perfectly:

AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryAmbient, error: nil)
AVAudioSession.sharedInstance().setActive(true, error: nil)

有没有人知道如何在swift 2.0中实现它？

Does anyone know how to implement this in swift 2.0?

推荐答案

以下是Swift 2调用的语法 setCategory 和 setActive on AVSession ：

The following would be the syntax for Swift 2 calling setCategory and setActive on AVSession:

do
{
    try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryAmbient)
    try AVAudioSession.sharedInstance().setActive(true)
}
catch let error as NSError
{
    print(error)
}

OR

do
{
    try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
    try AVAudioSession.sharedInstance().setActive(true)
}
catch let error as NSError
{
    print(error)
}

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