内容

• 公共函数
• 详细描述

QLowEnergyDescriptorData Class

The QLowEnergyDescriptorData class is used to create GATT service data. 更多...

头：	#include <QLowEnergyDescriptorData>
qmake:	QT += bluetooth
Since:	Qt 5.7

• 所有成员列表，包括继承成员

公共函数

	QLowEnergyDescriptorData ()
	QLowEnergyDescriptorData (const QBluetoothUuid & uuid , const QByteArray & value )
	QLowEnergyDescriptorData (const QLowEnergyDescriptorData & other )
	~QLowEnergyDescriptorData ()
bool	isReadable () const
bool	isValid () const
bool	isWritable () const
QBluetooth::AttAccessConstraints	readConstraints () const
void	setReadPermissions (bool readable , QBluetooth::AttAccessConstraints constraints = QBluetooth::AttAccessConstraints())
void	setUuid (const QBluetoothUuid & uuid )
void	setValue (const QByteArray & value )
void	setWritePermissions (bool writable , QBluetooth::AttAccessConstraints constraints = QBluetooth::AttAccessConstraints())
void	swap (QLowEnergyDescriptorData & other )
QBluetoothUuid	uuid () const
QByteArray	value () const
QBluetooth::AttAccessConstraints	writeConstraints () const
QLowEnergyDescriptorData &	operator= (const QLowEnergyDescriptorData & other )

详细描述

The QLowEnergyDescriptorData class is used to create GATT service data.

An object of this class provides a descriptor to be added to a QLowEnergyCharacteristicData object via QLowEnergyCharacteristicData::addDescriptor ().

注意： The member functions related to access permissions are only applicable to those types of descriptors for which the Bluetooth specification does not prescribe if and how their values can be accessed.

另请参阅 QLowEnergyCharacteristicData , QLowEnergyServiceData ，和 QLowEnergyController::addService .

成员函数文档编制

QLowEnergyDescriptorData:: QLowEnergyDescriptorData ()

Creates a new invalid object of this class.

QLowEnergyDescriptorData:: QLowEnergyDescriptorData (const QBluetoothUuid & uuid , const QByteArray & value )

Creates a new object of this class with UUID and value being provided by uuid and value ，分别。

QLowEnergyDescriptorData:: QLowEnergyDescriptorData (const QLowEnergyDescriptorData & other )

Constructs a new object of this class that is a copy of other .

QLowEnergyDescriptorData:: ~QLowEnergyDescriptorData ()

销毁此对象。

bool QLowEnergyDescriptorData:: isReadable () const

返回 true if the value of this descriptor is readable and false 否则。

bool QLowEnergyDescriptorData:: isValid () const

Returns true if and only if this object has a non-null UUID.

bool QLowEnergyDescriptorData:: isWritable () const

返回 true if the value of this descriptor is writable and false 否则。

QBluetooth::AttAccessConstraints QLowEnergyDescriptorData:: readConstraints () const

Returns the constraints under which the value of this descriptor can be read. This value is only relevant if isReadable () 返回 true .

void QLowEnergyDescriptorData:: setReadPermissions ( bool readable , QBluetooth::AttAccessConstraints constraints = QBluetooth::AttAccessConstraints())

Specifies whether the value of this descriptor is readable and if so, under which constraints .

另请参阅 setWritePermissions ().

void QLowEnergyDescriptorData:: setUuid (const QBluetoothUuid & uuid )

Sets the UUID of this descriptor to uuid .

另请参阅 uuid ().

void QLowEnergyDescriptorData:: setValue (const QByteArray & value )

Sets the value of this descriptor to value . It will be sent to a peer device exactly the way it is provided here, so callers need to take care of things such as endianness.

另请参阅 value ().

void QLowEnergyDescriptorData:: setWritePermissions ( bool writable , QBluetooth::AttAccessConstraints constraints = QBluetooth::AttAccessConstraints())

Specifies whether the value of this descriptor is writable and if so, under which constraints .

另请参阅 setReadPermissions ().

void QLowEnergyDescriptorData:: swap ( QLowEnergyDescriptorData & other )

Swaps this object with other .

QBluetoothUuid QLowEnergyDescriptorData:: uuid () const

Returns the UUID of this descriptor.

另请参阅 setUuid ().

QByteArray QLowEnergyDescriptorData:: value () const

Returns the value of this descriptor.

另请参阅 setValue ().

QBluetooth::AttAccessConstraints QLowEnergyDescriptorData:: writeConstraints () const

Returns the constraints under which the value of this descriptor can be written. This value is only relevant if isWritable () 返回 true .

QLowEnergyDescriptorData &QLowEnergyDescriptorData:: operator= (const QLowEnergyDescriptorData & other )

Makes this object a copy of other and returns the new value of this object.