Overview
Since build 1.1.0.19 it is possible to swith to Bluetooth headset for audio input/output using Flashphoner.getAudioManager().setUseBluetoothSco() function call:
To switch to BT headset
Flashphoner.getAudioManager().setUseBluetoothSco(true);
To switch to other audio input/output device
Flashphoner.getAudioManager().setUseBluetoothSco(false);
The usage example. Please note that it is necessary to disable speakerphone and BT headset usage to switch to phone voice speaker or to wired headset.
mAudioOutput = (LabelledSpinner) findViewById(R.id.audio_output); mAudioOutput.setOnItemChosenListener(new LabelledSpinner.OnItemChosenListener() { @Override public void onItemChosen(View labelledSpinner, AdapterView<?> adapterView, View itemView, int position, long id) { String audioType = getResources().getStringArray(R.array.audio_output)[position]; switch (audioType) { case "speakerphone": Flashphoner.getAudioManager().setUseSpeakerPhone(true); break; case "phone": Flashphoner.getAudioManager().setUseBluetoothSco(false); Flashphoner.getAudioManager().setUseSpeakerPhone(false); break; case "bluetooth": Flashphoner.getAudioManager().setUseBluetoothSco(true); break; } } @Override public void onNothingChosen(View labelledSpinner, AdapterView<?> adapterView) { } });
A simultaneous playback of media stream and a local media file to BT headphone
It is necessary to set the attribute AudioAttributes.USAGE_VOICE_COMMUNICATION and request audio focus for a mediaplayer in application to play simultaneously a media stream from server and a local media file from device to Bluetooth headphone, for example
/** * Audio focus example */ MediaPlayer music = MediaPlayer.create(getBaseContext(), R.raw.sound1); music.setAudioAttributes( new AudioAttributes.Builder() .setUsage(AudioAttributes.USAGE_VOICE_COMMUNICATION) .build()); music.start(); AudioManager.OnAudioFocusChangeListener audioFocusChangeListener = new AudioManager.OnAudioFocusChangeListener() { @Override public void onAudioFocusChange(int focusChange) { Log.d("AudioFocus,", "onAudioFocusChange="+focusChange); music.setVolume(1, 1); } }; // Request audio focus for playback int requestResult = Flashphoner.getAudioManager().getAudioManager().requestAudioFocus(audioFocusChangeListener, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN); Log.d("AudioFocus,", "requestResult="+requestResult); // Abandon audio focus when playback complete music.setOnCompletionListener(new MediaPlayer.OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { Flashphoner.getAudioManager().getAudioManager().abandonAudioFocus(audioFocusChangeListener); } });