Android Bluetooth device listening radio

Bluetooth permissions <uses-permission android:name= "Android.permission.BLUETOOTH"/>

1, monitor the mobile phone itself Bluetooth status broadcast

Send when Bluetooth on phone is turned off

Action:BluetoothAdapter.ACTION_STATE_CHANGED

if(Action.equals (bluetoothadapter.action_state_changed)) {intState =Intent.getintextra (Bluetoothadapter.extra_state, bluetoothadapter.error); Switch(state) { CaseBLUETOOTHADAPTER.STATE_OFF:LOG.D ("AAA", "State_off phone bluetooth off");  Break;  CaseBLUETOOTHADAPTER.STATE_TURNING_OFF:LOG.D ("AAA", "State_turning_off phone Bluetooth is shutting down");  Break;  CaseBLUETOOTHADAPTER.STATE_ON:LOG.D ("AAA", "state_on mobile phone bluetooth on");  Break;  CaseBLUETOOTHADAPTER.STATE_TURNING_ON:LOG.D ("AAA", "state_turning_on mobile phone Bluetooth is open");  Break; }}

2, monitor Bluetooth device pairing status of the broadcast

Bluetooth device is sent when pairing and de-pairing

Action:BluetoothDevice.ACTION_BOND_STATE_CHANGED

if(Action.equals (bluetoothdevice.action_bond_state_changed)) {Bluetoothdevice device=Intent.getparcelableextra (Bluetoothdevice.extra_device); String name=Device.getname (); LOG.D ("AAA", "Device Name:" +name); intState = Intent.getintextra (Bluetoothdevice.extra_bond_state,-1); Switch(state) { CaseBLUETOOTHDEVICE.BOND_NONE:LOG.D ("AAA", "Bond_none Delete pairing");  Break;  CaseBLUETOOTHDEVICE.BOND_BONDING:LOG.D ("AAA", "Bond_bonding is pairing");  Break;  CaseBLUETOOTHDEVICE.BOND_BONDED:LOG.D ("AAA", "bond_bonded pairing Success");  Break; }} 

3. Monitor the Bluetooth device connection and connect the disconnected broadcast

Send when Bluetooth device is connected on and disconnected

Action:BluetoothDevice.ACTION_ACL_CONNECTED bluetoothdevice.action_acl_disconnected

if (Action.equals (bluetoothdevice.action_acl_connected)) {    = Intent.getparcelableextra ( Bluetoothdevice.extra_device);    LOG.D ("AAA", Device.getname () + "action_acl_connected"Elseif  (Action.equals ( bluetoothdevice.action_acl_disconnected)) {    = Intent.getparcelableextra (bluetoothdevice.extra_ DEVICE);    LOG.D ("AAA", Device.getname () + "action_acl_disconnected");}

If you want to get all the Bluetooth devices that are currently connected, you can manually maintain a list of connected devices in these two broadcasts.

Bluetoothclass can get the type of Bluetooth device

Android Bluetooth device listening radio