AGSLocationDataSource Class Reference

Description

An abstract base class that provides location updates to AGSLocationDisplay.

Subclasses represent datasources that provide location updates to the mapview's location display.

Since

100

See also

AGSLocationDisplay

Inheritance diagram for AGSLocationDataSource:

Instance Methods
(void)	- didStartOrFailWithError:
(void)	- didStop
(void)	- didUpdateHeading:
(void)	- didUpdateLocation:
(void)	- doStart
(void)	- doStop
(void)	- startWithCompletion:
(void)	- stop
(void)	- stopWithCompletion:

Properties
NSError *	error
id< AGSLocationChangeHandlerDelegate >	locationChangeHandlerDelegate
BOOL	started
AGSLocationDataSourceStatus	status

Method Documentation

didStartOrFailWithError:

- (void) didStartOrFailWithError:

(nullable NSError *)

error

Subclasses must call this in doStart (AGSLocationDataSource(ForSubclassEyesOnly)) once the datasource has started.

Since

100

Provided by category AGSLocationDataSource(ForSubclassEyesOnly).

didStop

- (void) didStop

Subclasses must call this in doStop (AGSLocationDataSource(ForSubclassEyesOnly)) once the datasource has stopped.

Since

100

Provided by category AGSLocationDataSource(ForSubclassEyesOnly).

didUpdateHeading:

- (void) didUpdateHeading:

(double)

heading

Subclasses must call this once they have a new heading.

Since

100

Provided by category AGSLocationDataSource(ForSubclassEyesOnly).

didUpdateLocation:

- (void) didUpdateLocation:

(AGSLocation *)

location

Subclasses must call this once they have a new location.

Since

100

Provided by category AGSLocationDataSource(ForSubclassEyesOnly).

doStart

- (void) doStart

Subclasses must implement this method to start the datasource. Once the datasource has started or failed to start it should call didStartOrFailWithError: (AGSLocationDataSource(ForSubclassEyesOnly)). As updates are received, the datasource should call didUpdateLocation: (AGSLocationDataSource(ForSubclassEyesOnly)) or didUpdateHeading: (AGSLocationDataSource(ForSubclassEyesOnly)).

Since

100

Provided by category AGSLocationDataSource(ForSubclassEyesOnly).

doStop

- (void) doStop

Subclasses must implement this method to stop the datasource. Once the datasource has stopped it should call didStop (AGSLocationDataSource(ForSubclassEyesOnly))

Since

100

Provided by category AGSLocationDataSource(ForSubclassEyesOnly).

startWithCompletion:

- (void) startWithCompletion:

(nullable void(^)(NSError *__nullable error))

completion

This is invoked by the location display on the datasource to initiate requesting location updates. Internally this method calls doStart (AGSLocationDataSource(ForSubclassEyesOnly)) which subclasses must implement.

Parameters

completion

block which will be invoked when the operation completes. If the dataSource failed to start, the error property will be populated.

Since

100

stop

- (void) stop

This is invoked by the location display on the datasource to stop requesting location updates. Internally this method calls doStop (AGSLocationDataSource(ForSubclassEyesOnly)) which subclasses must implement.

Since

100

Deprecated:

100.14. Replaced by stopWithCompletion:.

Provided by category AGSLocationDataSource(AGSDeprecated).

stopWithCompletion:

- (void) stopWithCompletion:

(nullable void(^)(void))

completion

This is invoked by the location display on the datasource to stop requesting location updates. Internally this method calls doStop (AGSLocationDataSource(ForSubclassEyesOnly)) which subclasses must implement.

Since

100.14

Property Documentation

error

- (NSError*) error

readnonatomicstrong

The error that prevented the datasource from starting or was encountered while retrieving a location udpate

Since

100

locationChangeHandlerDelegate

- (id<AGSLocationChangeHandlerDelegate>) locationChangeHandlerDelegate

readwritenonatomicweak

The delegate which will receive location, heading and status updates from the data source.

Since

100.6

started

- (BOOL) started

readnonatomicassign

YES if the data source has been started, NO otherwise.

Since

100.0

Deprecated:

100.14. Replaced by AGSLocationDataSource::status.

Provided by category AGSLocationDataSource(AGSDeprecated).

status

- (AGSLocationDataSourceStatus) status

readnonatomicassign

The status of the data source.

Since

100.14