QNdefMessage Class
The QNdefMessage class provides an NFC NDEF message. More...
| Header: | #include <QNdefMessage> |
| CMake: | find_package(Qt6 REQUIRED COMPONENTS Nfc)target_link_libraries(mytarget PRIVATE Qt6::Nfc) |
| qmake: | QT += nfc |
| Since: | Qt 5.2 |
Public Functions
| QNdefMessage() | |
| QNdefMessage(const int &records) | |
| QNdefMessage(const QNdefMessage &message) | |
(since 6.2) QNdefMessage & | operator=(QNdefMessage &&other) |
(since 6.2) QNdefMessage & | operator=(const QNdefMessage &other) |
| Q_DECL_IMPORT | operator==(const QNdefMessage &other) const |
Detailed Description
A QNdefMessage is a collection of 0 or more QNdefRecords. QNdefMessage inherits from QList<QNdefRecord> and therefore the standard QList functions can be used to manipulate the NDEF records in the message.
NDEF messages can be parsed from a byte array conforming to the NFC Data Exchange Format technical specification by using the fromByteArray() static function. Conversely QNdefMessages can be converted into a byte array with the toByteArray() function.
Member Function Documentation
[constexpr noexcept default] QNdefMessage::QNdefMessage()
Constructs a new empty NDEF message.
[explicit] QNdefMessage::QNdefMessage(const int &records)
Constructs a new NDEF message that contains all of the records in records.
[constexpr noexcept default] QNdefMessage::QNdefMessage(const QNdefMessage &message)
Constructs a new NDEF message that is a copy of message.
[constexpr noexcept default, since 6.2] QNdefMessage &QNdefMessage::operator=(QNdefMessage &&other)
Move assignment operator from QList<QNdefRecord>. Moves the other list of NDEF records to this NDEF record list.
After the operation, other will be empty.
This is an overloaded function.
This function was introduced in Qt 6.2.
[constexpr noexcept default, since 6.2] QNdefMessage &QNdefMessage::operator=(const QNdefMessage &other)
Copy assignment operator from QList<QNdefRecord>. Assigns the other list of NDEF records to this NDEF record list.
After the operation, other and *this will be equal.
This is an overloaded function.
This function was introduced in Qt 6.2.
Q_DECL_IMPORT QNdefMessage::operator==(const QNdefMessage &other) const
Returns true if this NDEF message is equivalent to other; otherwise returns false.
An empty message (i.e. isEmpty() returns true) is equivalent to a NDEF message containing a single record of type QNdefRecord::Empty.