Swift：如何以编程方式设置iphone音量 [英] Swift: how to set the iphone volume programmatically

问题描述

我正在尝试创建一个闹钟应用程序，我注意到Sleep Cycle之类的应用程序会在闹钟响起之前将音量设置为最大，即使音量非常低。

I am trying to create an alarm app and I have noticed that apps like Sleep Cycle will set your volume to max right before the alarm goes off, even if you had the volume at very low.

我尝试过使用AVAudioPlayer，我在MPVolumeView上看到的只是用户必须这样做。
我有什么办法可以在没有用户的情况下将其打开吗？

I have tried using AVAudioPlayer and all I have seen with MPVolumeView is that the user must do it. Is there any way I can turn it up without the user having to do it?

感谢您的帮助。

如果我能在swift中获取代码

If I could please get the code in swift

推荐答案

您只需要导入MediaPlayer。你可以这样做：

You just need to import MediaPlayer. You can do as follow:

import MediaPlayer        

并将音量设置为最大值

(MPVolumeView().subviews.filter{NSStringFromClass($0.classForCoder) == "MPVolumeSlider"}.first as? UISlider)?.setValue(1, animated: false)

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