Detect if bluetooth headset connected

Question

Working on a VOIP application, in silent mode an alert tone or ringtone should play on bluetooth headset only. Able to play it on headphone if connected but if the headset is not connected the tone plays on the speaker though the mobile is in silent mode.

Someone please explain if there is a way to detect that a bluetooth headset is connected.

Answer 1

Thanks for the answer @cristallo

This is the way I handled it.

Connect to proxy

bluetoothAdapter.getProfileProxy(mContext, mProfileListener, BluetoothProfile.HEADSET);

Created a listener

private BluetoothProfile.ServiceListener mProfileListener = new BluetoothProfile.ServiceListener()
{

    @Override
    public void onServiceConnected(int profile, BluetoothProfile proxy)
    {
        if (profile == BluetoothProfile.HEADSET)
        {
            mBluetoothHeadset = (BluetoothHeadset) proxy;
            if(mBluetoothHeadset.getConnectedDevices().size()>0) {
                IS_BLUETOOTH_CONNECTED = true;
                Logs.d(TAG,"Bluetooth device is connected");
            }
            
        }
    }

    @Override
    public void onServiceDisconnected(int profile)
    {
         if (profile == BluetoothProfile.HEADSET)
         {
             mBluetoothHeadset = null;
             IS_BLUETOOTH_CONNECTED = false;
             Logs.d(TAG,"Bluetooth device is disconnected");
         }
    }
};

Referred from Detect programatically if headphone or bluetooth headset attached with android phone

The blogger Vipul had created a BluetoothHeadsetManager class, which handles getting the headset profile, handling the listener, checking if the bluetooth is enabled or not.I haven't utilized the Broadcast Receiver.

switch (audioMgr.getRingerMode()) {
        case AudioManager.RINGER_MODE_SILENT:
            if(BluetoothHeadsetManager.IS_BLUETOOTH_CONNECTED) {
                //play notification
            }
            break;
        case AudioManager.RINGER_MODE_VIBRATE:
            if(BluetoothHeadsetManager.IS_BLUETOOTH_CONNECTED) {
                //play notification
            }
            break;
        case AudioManager.RINGER_MODE_NORMAL:
            //play ringtone
            break;
        default:
            break;
        }}