Android get Bluetooth connected device

If Bluetooth is paired and connected manually, get the connected device:

1. Check the connection status:

Java code

1. int A2DP = Bluetoothadapter.getprofileconnectionstate (BLUETOOTHPROFILE.A2DP);
2. int headset = bluetoothadapter.getprofileconnectionstate (Bluetoothprofile.headset);
3. int health = bluetoothadapter.getprofileconnectionstate (bluetoothprofile.health);

2, depending on whether there is a connection to obtain the connected device:

Java code

2. int flag =-1;
4. if (A2DP = = bluetoothprofile.state_connected) {
6. flag = A2DP;
8. } Else if (headset = = bluetoothprofile.state_connected) {
10. flag = headset;
12. } Else if (health = = bluetoothprofile.state_connected) {
14. Flag = health;
16. }
20. if (flag! =-1) {
22. Bluetoothadapter.getprofileproxy (mainactivity. This, new Servicelistener () {
26. @Override
28. public void onservicedisconnected (int. profile) {
30. //TODO auto-generated method stub
34. }
38. @Override
40. public void onserviceconnected (int. profile, Bluetoothprofile proxy) {
42. //TODO auto-generated method stub
44. list<bluetoothdevice> mdevices = Proxy.getconnecteddevices ();
46. if (mdevices! = null && mdevices.size () > 0) {
48. For (Bluetoothdevice device:mdevices) {
50. LOG.I ("W", "Device name:" + device.getname ());
52. }
54. } Else {
56. LOG.I ("W", "mdevices is null");
58. }
60. }
62. }, flag);
64. }

Android get Bluetooth connected device