检测耳机是否已插入iOS设备 [英] Detecting if headset are plugged into iOS device

问题描述

ios设备上有一个互动电影.电影开始播放(点按)时，视频开始处的家伙会要求您插入耳机，如果已插入，则视频应自动直接跳至故事(直接转到视频故事).我该怎么办?以及如何编写代码?

There is an interactive movie on ios device. when movie starts (tap), the guy at the start of video will ask you plug headset , if plugged, then video should automatically jump straight to the story(straight go to the video-story). what should i do? and how to write a code?

推荐答案

首先，您必须注册AudioRoute更改:-

First you will have to register for AudioRoute Changes :-

AudioSessionAddPropertyListener (kAudioSessionProperty_AudioRouteChange,
                                     audioRouteChangeListenerCallback,
                                 self);

在这里您可以描述更改路线的原因:-

Here You can depict the reason for changing your route :-

CFDictionaryRef routeChangeDictionary = inPropertyValue;

  CFNumberRef routeChangeReasonRef =
  CFDictionaryGetValue (routeChangeDictionary,
                        CFSTR (kAudioSession_AudioRouteChangeKey_Reason));

  SInt32 routeChangeReason;

      CFNumberGetValue (routeChangeReasonRef, kCFNumberSInt32Type, &routeChangeReason);

  if (routeChangeReason == kAudioSessionRouteChangeReason_OldDeviceUnavailable) 
  {
       // your statements for headset unplugged

  }
  if (routeChangeReason == kAudioSessionRouteChangeReason_NewDeviceAvailable)
  {
       // your statements for headset plugged                             
  }

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