Conforms to NSObject
Declared in OSAnnotation.h

Overview

The OSAnnotation protocol is used with OSAnnotationView to add annotations to an OSMapView.

To use this protocol, adopt it in classes which represent points of interest. A class that adopts this protocol must implement the coordinate property.

For simple use cases, consider using OSPointAnnotation instead of defining a new class.

Tasks

Specifying co-ordinates

  •   coordinate

    The center point of the annotation, as a CLLocationCoordinate2D. The implementation of this property must be KVO-compliant. If gridPoint is implemented and returns a valid OSGridPoint, it is used in preference to the coordinate.

         property required method
  •   gridPoint

    The center point of the annotation, as an OSGridPoint. The implementation of this property must be KVO-compliant. If this returns a valid OSGridPoint, it is used instead of the coordinate.

         property

Metadata

Dragging annotations

Properties

coordinate

The center point of the annotation, as a CLLocationCoordinate2D. The implementation of this property must be KVO-compliant. If gridPoint is implemented and returns a valid OSGridPoint, it is used in preference to the coordinate.

@property (nonatomic, readonly) CLLocationCoordinate2D coordinate

Declared In

OSAnnotation.h

gridPoint

The center point of the annotation, as an OSGridPoint. The implementation of this property must be KVO-compliant. If this returns a valid OSGridPoint, it is used instead of the coordinate.

@property (nonatomic, readonly) OSGridPoint gridPoint

Declared In

OSAnnotation.h

subtitle

The subtitle of the annotation.

@property (nonatomic, readonly, copy) NSString *subtitle

Declared In

OSAnnotation.h

title

The title of the annotation.

@property (nonatomic, readonly, copy) NSString *title

Discussion

This string must have a positive length in order to display a callout.

Declared In

OSAnnotation.h

Instance Methods

setCoordinate:

Called after an annotation is dragged, unless the object responds to setGridPoint:.

- (void)setCoordinate:(CLLocationCoordinate2D)newCoordinate

Declared In

OSAnnotation.h

setGridPoint:

Called in preference to setCoordinate:.

- (void)setGridPoint:(OSGridPoint)gridPoint

Declared In

OSAnnotation.h