The QGeoServiceProviderFactory class is a factory class used as the plugin interface for services related to geographical information. 更多...
| 頭： | #include <QGeoServiceProviderFactory> |
| qmake: | QT += location |
This class is deprecated. We strongly advise against using it in new code.
| virtual | ~QGeoServiceProviderFactory () |
| virtual QGeoCodingManagerEngine * | createGeocodingManagerEngine (const QVariantMap & 參數 , QGeoServiceProvider::Error * error , QString * errorString ) const |
| virtual QPlaceManagerEngine * | createPlaceManagerEngine (const QVariantMap & 參數 , QGeoServiceProvider::Error * error , QString * errorString ) const |
| virtual QGeoRoutingManagerEngine * | createRoutingManagerEngine (const QVariantMap & 參數 , QGeoServiceProvider::Error * error , QString * errorString ) const |
| virtual void | setQmlEngine (QQmlEngine * engine ) |
注意： There are no source or binary compatibility guarantees for the backend classes. The API is only guaranteed to work with the Qt version it was developed against. API changes will however only be made in minor releases. (6.6, 6.7, and so on.)
Implementers must provide a unique combination of providerName() and providerVersion() per plugin.
The other functions should be overridden if the plugin supports the associated set of functionality.
[虛擬]
QGeoServiceProviderFactory::
~QGeoServiceProviderFactory
()
銷毀此 QGeoServiceProviderFactory 實例。
[虛擬]
QGeoCodingManagerEngine
*QGeoServiceProviderFactory::
createGeocodingManagerEngine
(const
QVariantMap
&
參數
,
QGeoServiceProvider::Error
*
error
,
QString
*
errorString
) const
返迴新的 QGeoCodingManagerEngine instance, initialized with parameters , which implements the location geocoding functionality.
若
error
不是
nullptr
it should be set to
QGeoServiceProvider::NoError
on success or an appropriate
QGeoServiceProvider::Error
當故障時。
若
errorString
不是
nullptr
it should be set to a string describing any error which occurred.
默認實現返迴
nullptr
, which causes a
QGeoServiceProvider::NotSupportedError
in
QGeoServiceProvider
.
[虛擬]
QPlaceManagerEngine
*QGeoServiceProviderFactory::
createPlaceManagerEngine
(const
QVariantMap
&
參數
,
QGeoServiceProvider::Error
*
error
,
QString
*
errorString
) const
返迴新的 QPlaceManagerEngine instance, initialized with parameters , which implements the place searching functionality.
若
error
不是
nullptr
it should be set to
QGeoServiceProvider::NoError
on success or an appropriate
QGeoServiceProvider::Error
當故障時。
若
errorString
不是
nullptr
it should be set to a string describing any error which occurred.
默認實現返迴
nullptr
, which causes a
QGeoServiceProvider::NotSupportedError
in
QGeoServiceProvider
.
[虛擬]
QGeoRoutingManagerEngine
*QGeoServiceProviderFactory::
createRoutingManagerEngine
(const
QVariantMap
&
參數
,
QGeoServiceProvider::Error
*
error
,
QString
*
errorString
) const
返迴新的 QGeoRoutingManagerEngine instance, initialized with parameters , which implements routing functionality.
若
error
不是
nullptr
it should be set to
QGeoServiceProvider::NoError
on success or an appropriate
QGeoServiceProvider::Error
當故障時。
若
errorString
不是
nullptr
it should be set to a string describing any error which occurred.
默認實現返迴
nullptr
, which causes a
QGeoServiceProvider::NotSupportedError
in
QGeoServiceProvider
.
[虛擬]
void
QGeoServiceProviderFactory::
setQmlEngine
(
QQmlEngine
*
engine
)
Notify the plugin when the qml engine is ready. In this moment the plugins can use it to register Image Providers.
默認實現什麼都不做。