How to create your own Sensor

The Qt Sensors module provides access to sensor hardware via QML and C++ interfaces.

The API is supported on Android , iOS ，和 Windows (MSVC) .

Creating your own sensor using C++ API

Using a Qt module's C++ API requires linking against the module library, either directly or through other dependencies.

Creating a sensor

To create your own sensor you can use the following steps:

Create your own MySensor and MySensorReading classes

class MyReadingPrivate;
class MyReading : public QSensorReading
  {
    Q_OBJECT
    Q_PROPERTY(qreal myprop READ myprop)
    DECLARE_READING(MyReading)
public:
    qreal myprop() const;
    void setMyprop(qreal myprop);
  };
class MySensor : public QSensor
{
    Q_OBJECT
public:
    explicit MySensor(QObject *parent = 0);
    MyReading *reading() const;
    static char const * const sensorType;
  };

Create a MySensorBackend by inheriting from QSensorBackend
Create MySensorBackendFactory factory class for instantiating that backend by inheriting a class QSensorBackendFactory
Register the backend factory by calling QSensorManager::registerBackend ("MySensorType", "MySensorId", &myfactory)
Instantiate the new MySensor and start using it

As an another option the sensors are put into a Creating a sensor plugin that you can use on demand.