Qt Sensors - Explorer QML Example

The Sensor Explorer QML import defines the Explorer QML module, exporting QSensorExplorer, QPropertyInfo and QSensorItem C++ classes as QML types. The source code is available in the sensor_explorer/import subdirectory.

To write a QML application that will use the QML types exposed by the Explorer module, following steps are needed:

Import the Explorer 1.0 declarative plugin:

import Explorer 1.0

Create a SensorExplorer QML item:

SensorExplorer {
    id: explorer
}

You can retrieve a list of all available sensors using SensorExplorer.availableSensors:

model: explorer.availableSensors

The example uses the returned list as a model to populate a view of available sensors.

To retrieve the properties of a sensor, use SensorItem.properties:

propertyList.model = explorer.selectedSensorItem.properties

The property list is used as a model for another view that displays the property names and values.

It is possible to edit the values of certain sensor properties. Selecting a writable property value will open an editor. SensorExplorer QML type allows you to pass a new value for a sensor property value as follows:

explorer.selectedSensorItem.changePropertyValue(propertyList.selectedItem, loaderEditor.item.text);

Starting and stopping a sensor can be done by setting the SensorItem.start property:

if (text === "Start") {
    explorer.selectedSensorItem.start = true;
    text = "Stop";
}
else {
    explorer.selectedSensorItem.start = false;
    text = "Start";
}

Files:

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