File	Doc	Category	Size	Date	Package
BluetoothGattDescriptor.java	API Doc	Android 5.1 API	6693	Thu Mar 12 22:22:10 GMT 2015	android.bluetooth

BluetoothGattDescriptor

• java.lang.Object

Fields Summary
public static final byte[]	ENABLE_NOTIFICATION_VALUE Value used to enable notification for a client configuration descriptor
public static final byte[]	ENABLE_INDICATION_VALUE Value used to enable indication for a client configuration descriptor
public static final byte[]	DISABLE_NOTIFICATION_VALUE Value used to disable notifications or indicatinos
public static final int	PERMISSION_READ Descriptor read permission
public static final int	PERMISSION_READ_ENCRYPTED Descriptor permission: Allow encrypted read operations
public static final int	PERMISSION_READ_ENCRYPTED_MITM Descriptor permission: Allow reading with man-in-the-middle protection
public static final int	PERMISSION_WRITE Descriptor write permission
public static final int	PERMISSION_WRITE_ENCRYPTED Descriptor permission: Allow encrypted writes
public static final int	PERMISSION_WRITE_ENCRYPTED_MITM Descriptor permission: Allow encrypted writes with man-in-the-middle protection
public static final int	PERMISSION_WRITE_SIGNED Descriptor permission: Allow signed write operations
public static final int	PERMISSION_WRITE_SIGNED_MITM Descriptor permission: Allow signed write operations with man-in-the-middle protection
protected UUID	mUuid The UUID of this descriptor.
protected int	mInstance Instance ID for this descriptor.
protected int	mPermissions Permissions for this descriptor
protected BluetoothGattCharacteristic	mCharacteristic Back-reference to the characteristic this descriptor belongs to.
protected byte[]	mValue The value for this descriptor.

Constructors Summary
public BluetoothGattDescriptor(UUID uuid, int permissions) Create a new BluetoothGattDescriptor. Requires {@link android.Manifest.permission#BLUETOOTH} permission. param uuid The UUID for this descriptor param permissions Permissions for this descriptor initDescriptor(null, uuid, 0, permissions);
BluetoothGattDescriptor(BluetoothGattCharacteristic characteristic, UUID uuid, int instance, int permissions) Create a new BluetoothGattDescriptor. Requires {@link android.Manifest.permission#BLUETOOTH} permission. param characteristic The characteristic this descriptor belongs to param uuid The UUID for this descriptor param permissions Permissions for this descriptor initDescriptor(characteristic, uuid, instance, permissions);

Methods Summary
public BluetoothGattCharacteristic	getCharacteristic() Returns the characteristic this descriptor belongs to. return The characteristic. return mCharacteristic;
public int	getInstanceId() Returns the instance ID for this descriptor. If a remote device offers multiple descriptors with the same UUID, the instance ID is used to distuinguish between descriptors. Requires {@link android.Manifest.permission#BLUETOOTH} permission. return Instance ID of this descriptor hide return mInstance;
public int	getPermissions() Returns the permissions for this descriptor. return Permissions of this descriptor return mPermissions;
public java.util.UUID	getUuid() Returns the UUID of this descriptor. return UUID of this descriptor return mUuid;
public byte[]	getValue() Returns the stored value for this descriptor This function returns the stored value for this descriptor as retrieved by calling {@link BluetoothGatt#readDescriptor}. The cached value of the descriptor is updated as a result of a descriptor read operation. return Cached value of the descriptor return mValue;
private void	initDescriptor(BluetoothGattCharacteristic characteristic, java.util.UUID uuid, int instance, int permissions) mCharacteristic = characteristic; mUuid = uuid; mInstance = instance; mPermissions = permissions;
void	setCharacteristic(BluetoothGattCharacteristic characteristic) Set the back-reference to the associated characteristic hide mCharacteristic = characteristic;
public boolean	setValue(byte[] value) Updates the locally stored value of this descriptor. This function modifies the locally stored cached value of this descriptor. To send the value to the remote device, call {@link BluetoothGatt#writeDescriptor} to send the value to the remote device. param value New value for this descriptor return true if the locally stored value has been set, false if the requested value could not be stored locally. mValue = value; return true;