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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include <QtSensors/qsensor.h>
#include <QtCore/QMetaObject>
#include <QtCore/QMetaproperty>
void start()
{
//! [Starting a sensor]
// start the sensor
QSensor sensor("QAccelerometer");
sensor.start();
// later
QSensorReading *reading = sensor.reading();
qreal x = reading->property("x").value<qreal>();
qreal y = reading->value(1).value<qreal>();
//! [Starting a sensor]
Q_UNUSED(x);
Q_UNUSED(y);
}
class MyObject : public QObject
{
void findSensors()
{
//! [Find sensors]
QList<QSensor*> mySensorList;
for (const QByteArray &type : QSensor::sensorTypes()) {
qDebug() << "Found a sensor type:" << type;
for (const QByteArray &identifier : QSensor::sensorsForType(type)) {
qDebug() << " " << "Found a sensor of that type:" << identifier;
QSensor* sensor = new QSensor(type, this);
sensor->setIdentifier(identifier);
mySensorList.append(sensor);
}
}
//! [Find sensors]
//! [Print reading properties]
for (QSensor* sensor : mySensorList) {
const int firstProperty = QSensorReading::staticMetaObject.propertyOffset();
// Connect to backend first in case start() hasn't been called yet
if (!sensor->connectToBackend())
continue;
qDebug() << "Sensor" << sensor->identifier() << "reading properties:";
QSensorReading *reading = sensor->reading();
if (reading) {
const QMetaObject *mo = reading->metaObject();
for (int i = firstProperty; i < mo->propertyCount(); ++i) {
QByteArray name = mo->property(i).name();
qDebug() << " " << name << reading->property(name).toByteArray();
}
}
}
//! [Print reading properties]
}
};
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