QSensorReading Class Reference

Member Function Documentation

void QSensorReading::setTimestamp ( qtimestamp timestamp )

Sets the timestamp of the reading.

This function was introduced in Qt Mobility 1.0.

See also timestamp().

QVariant QSensorReading::value ( int index ) const

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.

This function was introduced in Qt Mobility 1.0.

See also valueCount() and QObject::property().

int QSensorReading::valueCount () const

Returns the number of extra properties that the reading has.

Note that this does not count properties declared in QSensorReading.

As an example, this returns 3 for QAccelerometerReading because there are 3 properties defined in that class.

This function was introduced in Qt Mobility 1.0.