iPhone音频播放：通过内置扬声器的力量？ [英] iPhone audio playback: force through internal speaker?

问题描述

有谁知道是否有可能通过内部扬声器实现一个音频文件的播放，即使耳机插入？

Does anyone know if it is possible to implement playback of an audio file through the internal speaker even if the headphones are plugged in?

推荐答案

我不知道你是怎么做的音频播放，但尽量在看看了重定向输出音频的<一科href=\"http://developer.apple.com/iphone/library/documentation/Audio/Conceptual/AudioSessionProgrammingGuide/AudioSessionProgrammingGuide.pdf\">Audio会话编程指南

I'm not sure how you are doing your audio playback, but try having a look at the "Redirecting Output Audio" section of the Audio Session Programming Guide

这看起来是这样的：

UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;  // 1 
AudioSessionSetProperty ( 
    kAudioSessionProperty_OverrideAudioRoute,                         // 2 
    sizeof (audioRouteOverride),                                      // 3 
    &audioRouteOverride                                               // 4 
);

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