android SpeakerPhone 不起作用
我使用了一下代码来打开扬声器,为什么不其作用?
AudioManager audioManager = (AudioManager)getSystemService(Context.AUDIO_SERVICE);
audioManager.setMode(AudioManager.ROUTE_SPEAKER);
if(!audioManager.isSpeakerphoneOn()) {
audioManager.setSpeakerphoneOn(true);
audioManager.setStreamVolume(AudioManager.STREAM_VOICE_CALL,
audioManager.getStreamMaxVolume(AudioManager.STREAM_VOICE_CALL ),
AudioManager.STREAM_VOICE_CALL);
}