如果检测耳机插入iPhone [英] Detecting if headphones are plugged into iPhone

问题描述

有谁知道，如果你能检测是否耳机插入iPhone的，如果他们都没有 - 禁用声音从您的应用

Does anyone know if you can detect if headphones are plugged into the iPhone, and if they aren't - disable sound from your application.

我想我可以管理禁用声音，但检测部分，我还没有找到任何东西。

I think I could manage disabling sound, but the detection part I have yet to find anything on.

感谢

推荐答案

的http://developer.apple.com/iphone/library/sample$c$c/SpeakHere/Introduction/Intro.html

在这个项目中有一个code-片段，如果耳机是unpluged它暂停录制。也许你可以用它来实现你的结果。

In this project there is a code-snippet where it pauses recording if the headphones is unpluged. Maybe you can use it to achieve your result.

祝你好运！

（编辑）

您将不得不学习的SpeakHereController.mm文件。结果
我发现在这个code中的 awakeFromNib 法

You will have to study the SpeakHereController.mm file.
I found this code in the awakeFromNib method

// we do not want to allow recording if input is not available
error = AudioSessionGetProperty(kAudioSessionProperty_AudioInputAvailable, &size, &inputAvailable);
if (error) printf("ERROR GETTING INPUT AVAILABILITY! %d\n", error);
btn_record.enabled = (inputAvailable) ? YES : NO;

// we also need to listen to see if input availability changes
error = AudioSessionAddPropertyListener(kAudioSessionProperty_AudioInputAvailable, propListener, self);
if (error) printf("ERROR ADDING AUDIO SESSION PROP LISTENER! %d\n", error);

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