QGeoServiceProviderFactory Class

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

This class is deprecated. We strongly advise against using it in new code.

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公共函数

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 )

详细描述

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.

成员函数文档编制

[virtual] QGeoServiceProviderFactory:: ~QGeoServiceProviderFactory ()

销毁此 QGeoServiceProviderFactory 实例。

[virtual] QGeoCodingManagerEngine *QGeoServiceProviderFactory:: createGeocodingManagerEngine (const QVariantMap & 参数 , QGeoServiceProvider::Error * error , QString * errorString ) const

返回新的 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 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 .

[virtual] QPlaceManagerEngine *QGeoServiceProviderFactory:: createPlaceManagerEngine (const QVariantMap & 参数 , QGeoServiceProvider::Error * error , QString * errorString ) const

返回新的 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 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 .

[virtual] QGeoRoutingManagerEngine *QGeoServiceProviderFactory:: createRoutingManagerEngine (const QVariantMap & 参数 , QGeoServiceProvider::Error * error , QString * errorString ) const

返回新的 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 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 .

[virtual] 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。

内容

• 公共函数

• 详细描述