GoogleMaps Framework Reference

AI-generated Key Takeaways

• This documentation page provides type definitions for various functionalities within the Google Maps SDK for iOS.

• These definitions include types for features, map points, orientations, panorama metadata, and tile URLs.

• Developers can utilize these types to interact with and manipulate different aspects of the Google Maps display within their iOS applications.

• The definitions are available in both Swift and Objective-C, offering flexibility for developers using either language.

• Each type definition is linked to its detailed documentation for further information and usage instructions.

Type-Definitions

The following type definitions are available globally.

• GMSFeatureType

  Identifiers for feature types of data-driven styling features.

  Declaration

  Swift

  struct FeatureType : _ObjectiveCBridgeable, Hashable, Equatable, _SwiftNewtypeWrapper, RawRepresentable, @unchecked Sendable

  Objective-C

  typedef NSString *GMSFeatureType

• GMSReverseGeocodeCallback

  Handler that reports a reverse geocoding response, or error.

  @related GMSGeocoder

  Declaration

  Swift

  typealias GMSReverseGeocodeCallback = (GMSReverseGeocodeResponse?, (any Error)?) -> Void

  Objective-C

  typedef void (^GMSReverseGeocodeCallback)(GMSReverseGeocodeResponse *_Nullable,
                                            NSError *_Nullable)

• GMSMapPoint

  A point on the map. May represent a projected coordinate.

  x is in [-1, 1]. The axis direction is normal: y grows towards North, x grows towards East. (0, 0) is the center of the map.

  See GMSProject() and GMSUnproject().

  Declaration

  Objective-C

  typedef struct GMSMapPoint GMSMapPoint

• GMSOrientation

  GMSOrientation is a tuple of heading and pitch used to control the viewing direction of a GMSPanoramaCamera.

  Declaration

  Objective-C

  typedef struct GMSOrientation GMSOrientation

• GMSPanoramaCallback

  Callback for when a panorama metadata becomes available. If an error occurred, panorama is nil and error is not nil. Otherwise, panorama is not nil and error is nil.

  @related GMSPanoramaService

  Declaration

  Swift

  typealias GMSPanoramaCallback = (GMSPanorama?, (any Error)?) -> Void

  Objective-C

  typedef void (^GMSPanoramaCallback)(GMSPanorama *_Nullable, NSError *_Nullable)

• GMSVisibleRegion

  GMSVisibleRegion contains the four points defining the polygon that is visible in a map’s camera.

  This polygon can be a trapezoid instead of a rectangle, because a camera can have tilt. If the camera is directly over the center of the camera, the shape is rectangular, but if the camera is tilted, the shape will appear to be a trapezoid whose smallest side is closest to the point of view.

  Declaration

  Objective-C

  typedef struct GMSVisibleRegion GMSVisibleRegion

• GMSTileURLConstructor

  GMSTileURLConstructor is a block taking x, y and zoom and returning an NSURL, or nil to indicate no tile for that location.

  @related GMSURLTileLayer

  Declaration

  Swift

  typealias GMSTileURLConstructor = (UInt, UInt, UInt) -> URL?

  Objective-C

  typedef NSURL *_Nullable (^GMSTileURLConstructor)(NSUInteger, NSUInteger,
                                                    NSUInteger)