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android - Is there any way to force audio through the ...
https://stackoverflow.com/questions/6834816/is-there-any-way-to-force-audio-through-the-speakers-when-headphones-are-plugged
AudioSystem.setForceUse(AudioSystem.FOR_MEDIA, AudioSystem.FORCE_SPEAKER); but neither has worked. I've tried. setWiredHeadsetOn(false) but that doesn't work either, and is deprecated. Interestingly, isSpeakerphoneOn() reports true, as does . isWiredHeadsetOn() Additionally, the following permission is set
android音频系统(6)：AudioService之音频输出通道切换 | 码农家园
https://www.codenong.com/cs106737009/
AudioSystem.setForceUse(usage, config); 可以看到，AudioService用mForcedUseForComm和mForcedUseForCommExt保存了当前的音频通道，AudioService在调用AudioSystem.setForceUse(usage, config)方法时，会将相应的音频播放模式和音频通道设置到底层，从这里可以就看出，为什么在调用setSpeakerphoneOn ...
安卓找不到 android.media.AudioSystem_jasonhongcn的专栏 …
https://blog.csdn.net/jasonhongcn/article/details/88312375
实际上调用声音可以通过android.media.AudioSystem这个类调用setForceUse( int, int )这个方法就可以实现听筒的切换。但是Android把这个类在jar包中隐藏了，我们看不到，也找不到。为此，我们必须要通过反射调获得这个方法。private void setSpeakerphoneOn(boolean on) {try {//播放音频流类型set...
Android Audio Manager - Control the audio system of …
https://data-flair.training/blogs/android-audio-manager/
Android Audio Manager Audio Manager in general plays and controls the volume and ring of a device. Audio Manager in android is a class that provides access to the volume and modes of the device. Android audio manager helps us adjust the volume and ringing modes of devices based on our requirements.
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