ServiceManager QML Type

The central instance that loads the backends and provides ServiceObjects. More...

Import Statement: import QtInterfaceFramework 1.0
Instantiates: QIfServiceManager

Methods

Detailed Description

The ServiceManager singleton provides a model which can be used to list all available backends and their interfaces.

This class can be useful when you want to query all available backends for a specific interface. For example, to show a list of all available backends which implement the MediaPlayer interface. The use can then be presented with an option to select between local playback, or playback using a bluetooth device.

The ServiceManager implements the QAbstractListModel interface and provides the following roles:

Role NameTypeDescription
namestringThe backend's name, such as MediaPlugin.
serviceObjectServiceObjectThe actual QIfServiceObject, which can be used to connect a frontend API to this backend.

Note: When using this role in the data() function, the backend plugin is loaded and instantiated.

interfaceslist<string>A list of interfaces implemented by the backend.

For more information about QIfServiceManager and how it works, see its C++ documentation.

Method Documentation

list<ServiceObject> findServiceByInterface(interface, searchFlags)

Returns a list of backends implementing the specified interface.

The searchFlags argument can be used to control which type of backends are included in the search result:

ConstantDescription
IncludeProductionBackendsInclude production backends in the search result. See also ProductionBackend
IncludeSimulationBackendsInclude simulation backends in the search result. See also SimulationBackend
IncludeAllInclude both production and simulation backends in the search result.

bool hasInterface(interface)

Returns true if the specified interface has been registered.


© 2021 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.