QSensorReading
#include <QtSensors/QSensorReading>
QtSensors
The QSensorReading class holds the readings from the sensor.
1.0
Inheritance
Properties Index
| QtMobility::qtimestamp | timestamp [read-only] |
Public Functions Index
| virtual | ~QSensorReading () |
| qtimestamp | timestamp () const |
| void | setTimestamp (qtimestamp timestamp) |
| int | valueCount () const |
| QVariant | value (int index) const |
Protected Functions Index
| QSensorReading (QObject *parent, QSensorReadingPrivate *d) | |
| QScopedPointer< QSensorReadingPrivate > * | d_ptr () |
| virtual void | copyValuesFrom (QSensorReading *other) |
Properties
QtMobility::qtimestamp
the timestamp of the reading.
Returns the timestamp of the reading.
1.0
,1.0
Public Functions
virtual
Destructor.
void
Sets the timestamp of the reading.
1.0
int
Returns the number of extra properties that the reading has.
Note that this does not count properties declared in QSensorReading.
1.0
QVariant
Returns the value of the property at index.
Note that this function is slower than calling the data function directly.
Here is an example of getting a property via the different mechanisms available.
Accessing directly provides the best performance but requires compile-time knowledge of the data you are accessing.
QAccelerometerReading *reading = ...; qreal x = reading->x();
You can also access a property by name. To do this you must call QObject::property().
qreal x = reading->property("x").value<qreal>();
Finally, you can access values via numeric index.
qreal x = reading->value(0).value<qreal>();
Note that value() can only access properties declared with Q_PROPERTY() in sub-classes of QSensorReading.
valueCount(), QObject::property()
1.0
Protected Functions
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