BluetoothDevice

Broadcast Action: Indicates a low level (ACL) connection has been established with a remote device.

Always contains the extra field EXTRA_DEVICE .

ACL connections are managed automatically by the Android Bluetooth stack.

Requires BLUETOOTH to receive.

Broadcast Action: Indicates a low level (ACL) disconnection from a remote device.

Always contains the extra field EXTRA_DEVICE .

ACL connections are managed automatically by the Android Bluetooth stack.

Requires BLUETOOTH to receive.

Broadcast Action: Indicates that a low level (ACL) disconnection has been requested for a remote device, and it will soon be disconnected.

This is useful for graceful disconnection. Applications should use this intent as a hint to immediately terminate higher level connections (RFCOMM, L2CAP, or profile connections) to the remote device.

Always contains the extra field EXTRA_DEVICE .

Requires BLUETOOTH to receive.

Broadcast Action: Indicates a change in the bond state of a remote device. For example, if a device is bonded (paired).

Always contains the extra fields EXTRA_DEVICE , EXTRA_BOND_STATE and EXTRA_PREVIOUS_BOND_STATE .

Requires BLUETOOTH to receive.

Broadcast Action: Bluetooth class of a remote device has changed.

Always contains the extra fields EXTRA_DEVICE and EXTRA_CLASS .

Requires BLUETOOTH to receive.

Broadcast Action: Remote device discovered.

Sent when a remote device is found during discovery.

Always contains the extra fields EXTRA_DEVICE and EXTRA_CLASS . Can contain the extra fields EXTRA_NAME and/or EXTRA_RSSI if they are available.

Requires BLUETOOTH to receive.

Broadcast Action: Indicates the friendly name of a remote device has been retrieved for the first time, or changed since the last retrieval.

Always contains the extra fields EXTRA_DEVICE and EXTRA_NAME .

Requires BLUETOOTH to receive.

Broadcast Action: This intent is used to broadcast PAIRING REQUEST

Requires BLUETOOTH_ADMIN to receive.

Broadcast Action: This intent is used to broadcast the UUID wrapped as a ParcelUuid of the remote device after it has been fetched. This intent is sent only when the UUIDs of the remote device are requested to be fetched using Service Discovery Protocol

Always contains the extra field EXTRA_DEVICE

Always contains the extra field EXTRA_UUID

Requires BLUETOOTH to receive.

Indicates the remote device is bonded (paired).

A shared link keys exists locally for the remote device, so communication can be authenticated and encrypted.

Being bonded (paired) with a remote device does not necessarily mean the device is currently connected. It just means that the pending procedure was completed at some earlier time, and the link key is still stored locally, ready to use on the next connection.

Indicates bonding (pairing) is in progress with the remote device.

Indicates the remote device is not bonded (paired).

There is no shared link key with the remote device, so communication (if it is allowed at all) will be unauthenticated and unencrypted.

Bluetooth device type, Classic - BR/EDR devices

Bluetooth device type, Dual Mode - BR/EDR/LE

Bluetooth device type, Low Energy - LE-only

Bluetooth device type, Unknown

Sentinel error value for this class. Guaranteed to not equal any other integer constant in this class. Provided as a convenience for functions that require a sentinel error value, for example:

Intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, BluetoothDevice.ERROR)

Used as an int extra field in ACTION_BOND_STATE_CHANGED intents. Contains the bond state of the remote device.

Possible values are: BOND_NONE , BOND_BONDING , BOND_BONDED .

Used as a Parcelable BluetoothClass extra field in ACTION_FOUND and ACTION_CLASS_CHANGED intents.

Used as a Parcelable BluetoothDevice extra field in every intent broadcast by this class. It contains the BluetoothDevice that the intent applies to.

Used as a String extra field in ACTION_NAME_CHANGED and ACTION_FOUND intents. It contains the friendly Bluetooth name.

Used as an int extra field in ACTION_PAIRING_REQUEST intents as the value of passkey.

Used as an int extra field in ACTION_PAIRING_REQUEST intents to indicate pairing method used. Possible values are: PAIRING_VARIANT_PIN , PAIRING_VARIANT_PASSKEY_CONFIRMATION ,

Used as an int extra field in ACTION_BOND_STATE_CHANGED intents. Contains the previous bond state of the remote device.

Possible values are: BOND_NONE , BOND_BONDING , BOND_BONDED .

Used as an optional short extra field in ACTION_FOUND intents. Contains the RSSI value of the remote device as reported by the Bluetooth hardware.

Used as an extra field in ACTION_UUID intents, Contains the ParcelUuid s of the remote device which is a parcelable version of UUID .

The user will be prompted to confirm the passkey displayed on the screen or an app will confirm the passkey for the user.

The user will be prompted to enter a pin or an app will enter a pin for user.

Connect to GATT Server hosted by this device. Caller acts as GATT client. The callback is used to deliver results to Caller, such as connection status as well as any further GATT client operations. The method returns a BluetoothGatt instance. You can use BluetoothGatt to conduct GATT client operations.

Start the bonding (pairing) process with the remote device.

This is an asynchronous call, it will return immediately. Register for ACTION_BOND_STATE_CHANGED intents to be notified when the bonding process completes, and its result.

Android system services will handle the necessary user interactions to confirm and complete the bonding process.

Requires BLUETOOTH_ADMIN .

Create an RFCOMM BluetoothSocket socket ready to start an insecure outgoing connection to this remote device using SDP lookup of uuid.

The communication channel will not have an authenticated link key i.e it will be subject to man-in-the-middle attacks. For Bluetooth 2.1 devices, the link key will be encrypted, as encryption is mandatory. For legacy devices (pre Bluetooth 2.1 devices) the link key will be not be encrypted. Use createRfcommSocketToServiceRecord(UUID) if an encrypted and authenticated communication channel is desired.

This is designed to be used with listenUsingInsecureRfcommWithServiceRecord(String, UUID) for peer-peer Bluetooth applications.

Use connect() to initiate the outgoing connection. This will also perform an SDP lookup of the given uuid to determine which channel to connect to.

The remote device will be authenticated and communication on this socket will be encrypted.

Hint: If you are connecting to a Bluetooth serial board then try using the well-known SPP UUID 00001101-0000-1000-8000-00805F9B34FB. However if you are connecting to an Android peer then please generate your own unique UUID.

Requires BLUETOOTH

Create an RFCOMM BluetoothSocket ready to start a secure outgoing connection to this remote device using SDP lookup of uuid.

This is designed to be used with listenUsingRfcommWithServiceRecord(String, UUID) for peer-peer Bluetooth applications.

Use connect() to initiate the outgoing connection. This will also perform an SDP lookup of the given uuid to determine which channel to connect to.

The remote device will be authenticated and communication on this socket will be encrypted.

Use this socket only if an authenticated socket link is possible. Authentication refers to the authentication of the link key to prevent man-in-the-middle type of attacks. For example, for Bluetooth 2.1 devices, if any of the devices does not have an input and output capability or just has the ability to display a numeric key, a secure socket connection is not possible. In such a case, use {#link createInsecureRfcommSocketToServiceRecord}. For more details, refer to the Security Model section 5.2 (vol 3) of Bluetooth Core Specification version 2.1 + EDR.

Hint: If you are connecting to a Bluetooth serial board then try using the well-known SPP UUID 00001101-0000-1000-8000-00805F9B34FB. However if you are connecting to an Android peer then please generate your own unique UUID.

Requires BLUETOOTH

Describe the kinds of special objects contained in this Parcelable's marshalled representation.

Compares this instance with the specified object and indicates if they are equal. In order to be equal, o must represent the same object as this instance using a class-specific comparison. The general contract is that this comparison should be reflexive, symmetric, and transitive. Also, no object reference other than null is equal to null.

The default implementation returns true only if this == o . See Writing a correct equals method if you intend implementing your own equals method.

The general contract for the equals and hashCode() methods is that if equals returns true for any two objects, then hashCode() must return the same value for these objects. This means that subclasses of Object usually override either both methods or neither of them.

Perform a service discovery on the remote device to get the UUIDs supported.

This API is asynchronous and ACTION_UUID intent is sent, with the UUIDs supported by the remote end. If there is an error in getting the SDP records or if the process takes a long time, ACTION_UUID intent is sent with the UUIDs that is currently present in the cache. Clients should use the getUuids() to get UUIDs if service discovery is not to be performed.

Requires BLUETOOTH .

Returns the hardware address of this BluetoothDevice.

For example, "00:11:22:AA:BB:CC".

Get the Bluetooth class of the remote device.

Requires BLUETOOTH .

Get the bond state of the remote device.

Possible values for the bond state are: BOND_NONE , BOND_BONDING , BOND_BONDED .

Requires BLUETOOTH .

Get the friendly Bluetooth name of the remote device.

The local adapter will automatically retrieve remote names when performing a device scan, and will cache them. This method just returns the name for this device from the cache.

Requires BLUETOOTH

Get the Bluetooth device type of the remote device.

Requires BLUETOOTH

Returns the supported features (UUIDs) of the remote device.

This method does not start a service discovery procedure to retrieve the UUIDs from the remote device. Instead, the local cached copy of the service UUIDs are returned.

Use fetchUuidsWithSdp() if fresh UUIDs are desired.

Requires BLUETOOTH .

Returns an integer hash code for this object. By contract, any two objects for which equals(Object) returns true must return the same hash code value. This means that subclasses of Object usually override both methods or neither method.

Note that hash values must not change over time unless information used in equals comparisons also changes.

See Writing a correct hashCode method if you intend implementing your own hashCode method.

Confirm passkey for PAIRING_VARIANT_PASSKEY_CONFIRMATION pairing.

Requires BLUETOOTH_ADMIN .

Set the pin during pairing when the pairing method is PAIRING_VARIANT_PIN

Requires BLUETOOTH_ADMIN .

Returns a string representation of this BluetoothDevice.

Currently this is the Bluetooth hardware address, for example "00:11:22:AA:BB:CC". However, you should always use getAddress() if you explicitly require the Bluetooth hardware address in case the toString() representation changes in the future.

Flatten this object in to a Parcel.