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50
51#include "foorecord.h"
52#include <qndefrecord.h>
53
54//! [Declare foo record]
55Q_DECLARE_NDEFRECORD(QQmlNdefFooRecord, QNdefRecord::ExternalRtd, "com.example:f")
56//! [Declare foo record]
57
58//! [createFooRecord]
59static inline QNdefRecord createFooRecord()
60{
61 QNdefRecord foo;
62 foo.setTypeNameFormat(QNdefRecord::ExternalRtd);
63 foo.setType("com.example:f");
64 foo.setPayload(QByteArray(sizeof(int), char(0)));
65 return foo;
66}
67//! [createFooRecord]
68
69//! [copyFooRecord]
70static inline QNdefRecord copyFooRecord(const QNdefRecord &record)
71{
72 if (record.typeNameFormat() != QNdefRecord::ExternalRtd)
73 return createFooRecord();
74 if (record.type() != "com.example:f")
75 return createFooRecord();
76
77 return record;
78}
79//! [copyFooRecord]
80
81//! [Constructors]
82QQmlNdefFooRecord::QQmlNdefFooRecord(QObject *parent)
83: QQmlNdefRecord(createFooRecord(), parent)
84{
85}
86
87QQmlNdefFooRecord::QQmlNdefFooRecord(const QNdefRecord &record, QObject *parent)
88: QQmlNdefRecord(copyFooRecord(record), parent)
89{
90}
91//! [Constructors]
92
93QQmlNdefFooRecord::~QQmlNdefFooRecord()
94{
95}
96
97int QQmlNdefFooRecord::foo() const
98{
99 QByteArray payload = record().payload();
100
101 int value = payload.at(i: 0) << 24 |
102 payload.at(i: 1) << 16 |
103 payload.at(i: 2) << 8 |
104 payload.at(i: 3) << 0;
105
106 return value;
107}
108
109void QQmlNdefFooRecord::setFoo(int value)
110{
111 if (foo() == value)
112 return;
113
114 QByteArray payload;
115 payload[0] = (value >> 24) & 0xff;
116 payload[1] = (value >> 16) & 0xff;
117 payload[2] = (value >> 8) & 0xff;
118 payload[3] = (value >> 0) & 0xff;
119
120 QNdefRecord r = record();
121 r.setPayload(payload);
122 setRecord(r);
123 emit fooChanged();
124}
125

source code of qtconnectivity/src/nfc/doc/snippets/foorecord.cpp