Supported NFC Features

Qt NFC provides two options for reading and writing the data. These options are reflected in the AccessMethod 枚举。

NdefAccess - using NDEF messages via readNdefMessages () 和 writeNdefMessages ().
TagTypeSpecificAccess - sending custom commands using sendCommand () and getting the results via requestResponse ().

TagTypeSpecificAccess implies that the user might need to send different data based on the NFC Tag Type. Tag types recognized by Qt NFC are defined in the Type 枚举。

Qt NFC support for different access methods and tag types varies depending on the platform. The table below shows currently supported subsets of features for every platform.

平台	Recognized Tag Types	NDEF Support	Tag Specific Access
Android	All from the Type enum	Yes	Yes
iOS	NfcTagType4 NfcTagType4A NfcTagType4B ProprietaryTag	No	Yes - for supported tag types
Linux, Windows, macOS (implemented using PC/SC )	NfcTagType4 ProprietaryTag	Yes - for NfcTagType4	Yes - for ProprietaryTag