The QGeoServiceProviderFactory class is a factory class used as the plugin interface for services related to geographical information. 更多...
| 头： | #include <QGeoServiceProviderFactory> |
| qmake: | QT += location |
| 状态： | Deprecated |
This class is deprecated. We strongly advise against using it in new code.
| virtual | ~QGeoServiceProviderFactory () |
| virtual QGeoCodingManagerEngine * | createGeocodingManagerEngine (const QVariantMap & 参数 , QGeoServiceProvider::Error * error , QString * errorString ) const |
| virtual QPlaceManagerEngine * | createPlaceManagerEngine (const QVariantMap & 参数 , QGeoServiceProvider::Error * error , QString * errorString ) const |
| virtual QGeoRoutingManagerEngine * | createRoutingManagerEngine (const QVariantMap & 参数 , 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.
[virtual noexcept]
QGeoServiceProviderFactory::
~QGeoServiceProviderFactory
()
销毁此 QGeoServiceProviderFactory 实例。
[虚拟]
QGeoCodingManagerEngine
*QGeoServiceProviderFactory::
createGeocodingManagerEngine
(const
QVariantMap
&
参数
,
QGeoServiceProvider::Error
*
error
,
QString
*
errorString
) const
返回新的 QGeoCodingManagerEngine instance, initialized with 参数 , 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
当故障时。
若
errorString
不是
nullptr
it should be set to a string describing any error which occurred.
默认实现返回
nullptr
, which causes a
QGeoServiceProvider::NotSupportedError
in
QGeoServiceProvider
.
[虚拟]
QPlaceManagerEngine
*QGeoServiceProviderFactory::
createPlaceManagerEngine
(const
QVariantMap
&
参数
,
QGeoServiceProvider::Error
*
error
,
QString
*
errorString
) const
返回新的 QPlaceManagerEngine instance, initialized with 参数 , 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
当故障时。
若
errorString
不是
nullptr
it should be set to a string describing any error which occurred.
默认实现返回
nullptr
, which causes a
QGeoServiceProvider::NotSupportedError
in
QGeoServiceProvider
.
[虚拟]
QGeoRoutingManagerEngine
*QGeoServiceProviderFactory::
createRoutingManagerEngine
(const
QVariantMap
&
参数
,
QGeoServiceProvider::Error
*
error
,
QString
*
errorString
) const
返回新的 QGeoRoutingManagerEngine instance, initialized with 参数 , which implements routing functionality.
若
error
不是
nullptr
it should be set to
QGeoServiceProvider::NoError
on success or an appropriate
QGeoServiceProvider::Error
当故障时。
若
errorString
不是
nullptr
it should be set to a string describing any error which occurred.
默认实现返回
nullptr
, which causes a
QGeoServiceProvider::NotSupportedError
in
QGeoServiceProvider
.
[虚拟]
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.
默认实现什么都不做。