Output audio to bluetooth

mAudioManager.startBluetoothSco(); // This method can be used by applications wanting to send and received audio to/from a bluetooth SCO headset while the phone is not in call. 
mAudioManager.setBluetoothScoOn(true); // set true to use bluetooth SCO for communications; false to not use bluetooth SCO for communications

Source: stackoverflow.com

Output audio to bluetooth

public class BluetoothReceiver extends BroadcastReceiver {
    private AudioManager localAudioManager;
    private static final int STATE_DISCONNECTED  = 0x00000000;
    private static final String EXTRA_STATE = "android.bluetooth.headset.extra.STATE";
    private static final String TAG = "BluetoothReceiver";
    private static final String ACTION_BT_HEADSET_STATE_CHANGED  = "android.bluetooth.headset.action.STATE_CHANGED";
    private static final String ACTION_BT_HEADSET_FORCE_ON = "android.bluetooth.headset.action.FORCE_ON";
    private static final String ACTION_BT_HEADSET_FORCE_OFF = "android.bluetooth.headset.action.FORCE_OFF";

    @Override
    public void onReceive(final Context context, final Intent intent) {
        Log.i(TAG,"onReceive - BluetoothBroadcast");
        localAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
        final String action = intent.getAction();
        if (action.equals(ACTION_BT_HEADSET_STATE_CHANGED)) {
            final int extraData = intent.getIntExtra(EXTRA_STATE, STATE_DISCONNECTED);
            if (extraData == STATE_DISCONNECTED) {
                //no headset -> going other modes
                localAudioManager.setBluetoothScoOn(false);
                localAudioManager.stopBluetoothSco();
                localAudioManager.setMode(AudioManager.MODE_NORMAL);
                Log.i(TAG, "Bluetooth Headset Off " + localAudioManager.getMode());
                Log.i(TAG, "A2DP: " + localAudioManager.isBluetoothA2dpOn() + ". SCO: " + localAudioManager.isBluetoothScoAvailableOffCall());
            } else {            
                localAudioManager.setMode(0);
                localAudioManager.setBluetoothScoOn(true);
                localAudioManager.startBluetoothSco();
                localAudioManager.setMode(AudioManager.MODE_IN_CALL);
                Log.i(TAG, "Bluetooth Headset On " + localAudioManager.getMode());
                Log.i(TAG, "A2DP: " + localAudioManager.isBluetoothA2dpOn() + ". SCO: " + localAudioManager.isBluetoothScoAvailableOffCall());
            }
        }   

        if (action.equals(ACTION_BT_HEADSET_FORCE_ON)) {
            localAudioManager.setMode(0);
            localAudioManager.setBluetoothScoOn(true);
            localAudioManager.startBluetoothSco();
            localAudioManager.setMode(AudioManager.MODE_IN_CALL);
            Log.i(TAG, "Bluetooth Headset On " + localAudioManager.getMode());
            Log.i(TAG, "A2DP: " + localAudioManager.isBluetoothA2dpOn() + ". SCO: " + localAudioManager.isBluetoothScoAvailableOffCall());
        }

        if (action.equals(ACTION_BT_HEADSET_FORCE_OFF)) {
            localAudioManager.setBluetoothScoOn(false);
            localAudioManager.stopBluetoothSco();
            localAudioManager.setMode(AudioManager.MODE_NORMAL);
            Log.i(TAG, "Bluetooth Headset Off " + localAudioManager.getMode());
            Log.i(TAG, "A2DP: " + localAudioManager.isBluetoothA2dpOn() + ". SCO: " + localAudioManager.isBluetoothScoAvailableOffCall());
        }
    }
}

Source: stackoverflow.com

Similar codes

17 votes164 views7 answers
Could not find driver (sql: select * from information_schema.tables where table_schema = laravel and table_name = migrations and table_type = 'base table')
Java
1 vote253 views1 answer
How to check if string is double or not in java
Java
2 votes228 views1 answer
Java programming language
Java
0 vote242 views1 answer
TestException = com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field
Java
0 vote260 views1 answer
Extract html tag using regex
Java
1 vote246 views1 answer
Bigdecimal to string
Java
0 vote203 views1 answer
Streamingoutput java 504 gateway timeout
Java
1 vote206 views1 answer
Concatenate two arrays java
Java
0 vote209 views1 answer
Sum of no
Java
0 vote207 views1 answer
Pioneer meaning
Java