Android開啟/關閉擴音(SpeakerPhone)
//開啟揚聲器
public void OpenSpeaker() {
try{
AudioManager audioManager = (AudioManager) mContext.getSystemService (Context.AUDIO_SERVICE);
//audioManager.setMode(AudioManager.ROUTE_SPEAKER);
audioManager.setMode(AudioManager.MODE_IN_CALL);
currVolume = audioManager.getStreamVolume(AudioManager.STREAM_VOICE_CALL);
if(!audioManager.isSpeakerphoneOn()) {
audioManager.setSpeakerphoneOn(true);
audioManager.setStreamVolume(AudioManager.STREAM_VOICE_CALL,
audioManager.getStreamMaxVolume(AudioManager.STREAM_VOICE_CALL ),
AudioManager.STREAM_VOICE_CALL);
}
} catch (Exception e) {
e.printStackTrace();
}
}
//關閉揚聲器
public void CloseSpeaker() {
try {
AudioManager audioManager = (AudioManager) mContext.getSystemService (Context.AUDIO_SERVICE);
if(audioManager != null) {
if(audioManager.isSpeakerphoneOn()) {
audioManager.setSpeakerphoneOn(false);
audioManager.setStreamVolume(AudioManager.STREAM_VOICE_CALL,currVolume,
AudioManager.STREAM_VOICE_CALL);
}
}
} catch (Exception e) {
e.printStackTrace();
}
//Toast.makeText(context,"揚聲器已經關閉",Toast.LENGTH_SHORT).show();
}
注意:
1.setSpeakerphoneOn() only work when audio mode set to MODE_IN_CALL. Try this:
AudioManager audioManager = (AudioManager)mActivity.getSystemService(Context.AUDIO_SERVICE);
audioManager.setMode(AudioManager.MODE_IN_CALL);
audioManager.setSpeakerphoneOn(true);
2. android.permission.MODIFY_AUDIO_SETTINGS
permission set in your manifest file because setSpeakerPhoneOn() requires that permission.