NdefFilter QML Type

Represents a filtering constraint for NDEF message records. 更多...

import 语句：	import QtNfc 5.15
Since:	Qt 5.2

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特性

maximum : int
minimum : int
type : string
typeNameFormat : QQmlNdefRecord::TypeNameFormat

详细描述

The NdefFilter type is used with the NearField type to read NDEF messages from NFC Forum tags that match a given structure.

NearField {
    filter: [
        NdefFilter {
            type: "urn:nfc:wkt:U"
            minimum: 1
            maximum: 1
        }
    ]
}

另请参阅 NearField and QNdefFilter .

特性文档编制

maximum : int

This property holds the maximum number of records of the given type that must be in the NDEF message for it match.

The default maximum is UINT_MAX.

另请参阅 minimum .

minimum : int

This property holds the minimum number of records of the given type that must be in the NDEF message for it match.

The default minimum is 1.

另请参阅 maximum .

type : string

This property holds the NDEF record type that the filter matches. This property must be set to the fully qualified record type, i.e. including the NIS and NSS prefixes. For example set to urn:nfc:wkt:U to match NFC RTD-URI records.

typeNameFormat : QQmlNdefRecord::TypeNameFormat

This property holds the NDEF record name format type QQmlNdefRecord::TypeNameFormat .