NdefFilter QML Type
Represents a filtering constraint for NDEF message records. 更多...
| Import Statement: | import QtNfc 5.2 |
| 开始支持版本: | Qt 5.2 |
属性
- 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
}
]
}
参见 NearField and QNdefFilter.
属性
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.
参见 minimum.
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.
参见 maximum.
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.
This property holds the NDEF record name format type