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    GoogleMaps Framework Reference

    • This documentation page lists globally available constants used in the Google Maps SDK for iOS.

    • These constants include accessibility identifiers, zoom level limits, feature types, and style specifications.

    • Constants for camera properties, marker anchors, and panorama settings are also provided.

    • Developers can utilize these constants to interact with and customize various aspects of the map, markers, and overlays.

    • Additionally, constants for earth radius, projected meters, and tile layer behavior are defined for advanced use cases.

    Constants

    The following constants are available globally.

    • Accessibility identifier for the compass button.

      @related GMSMapView

      Declaration

      Swift

        let 
 kGMSAccessibilityCompass 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 kGMSAccessibilityCompass

    • Accessibility identifier for the “my location” button.

      @related GMSMapView

      Declaration

      Swift

        let 
 kGMSAccessibilityMyLocation 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 kGMSAccessibilityMyLocation

    • Accessibility identifier for the “out of quota” error label.

      @related GMSMapView

      Declaration

      Swift

        let 
 kGMSAccessibilityOutOfQuota 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 kGMSAccessibilityOutOfQuota

    • The maximum zoom (closest to the Earth’s surface) permitted by the map camera.

      Declaration

      Swift

        let 
 kGMSMaxZoomLevel 
 : 
 Float

      Objective-C

        extern 
 const 
 float 
 kGMSMaxZoomLevel

    • The minimum zoom (farthest from the Earth’s surface) permitted by the map camera.

      Declaration

      Swift

        let 
 kGMSMinZoomLevel 
 : 
 Float

      Objective-C

        extern 
 const 
 float 
 kGMSMinZoomLevel

    • Declaration

      Swift

        static 
 let 
 administrativeAreaLevel1 
 : 
 FeatureType

      Objective-C

        FOUNDATION_EXPORT 
  GMSFeatureType 
 
 const 
 GMSFeatureTypeAdministrativeAreaLevel1

    • Declaration

      Swift

        static 
 let 
 administrativeAreaLevel2 
 : 
 FeatureType

      Objective-C

        FOUNDATION_EXPORT 
  GMSFeatureType 
 
 const 
 GMSFeatureTypeAdministrativeAreaLevel2

    • Declaration

      Swift

        static 
 let 
 country 
 : 
 FeatureType

      Objective-C

        FOUNDATION_EXPORT 
  GMSFeatureType 
 
 const 
 GMSFeatureTypeCountry

    • Declaration

      Swift

        static 
 let 
 locality 
 : 
 FeatureType

      Objective-C

        FOUNDATION_EXPORT 
  GMSFeatureType 
 
 const 
 GMSFeatureTypeLocality

    • Declaration

      Swift

        static 
 let 
 postalCode 
 : 
 FeatureType

      Objective-C

        FOUNDATION_EXPORT 
  GMSFeatureType 
 
 const 
 GMSFeatureTypePostalCode

    • Declaration

      Swift

        static 
 let 
 schoolDistrict 
 : 
 FeatureType

      Objective-C

        FOUNDATION_EXPORT 
  GMSFeatureType 
 
 const 
 GMSFeatureTypeSchoolDistrict

    • Declaration

      Swift

        static 
 let 
 dataset 
 : 
 FeatureType

      Objective-C

        FOUNDATION_EXPORT 
  GMSFeatureType 
 
 const 
 GMSFeatureTypeDataset

    • Value to use for strokeWidth parameter when the stroke width should be unchanged.

      Declaration

      Swift

        class 
 let 
 strokeWidthUnspecified 
 : 
 CGFloat

      Objective-C

        extern 
 const 
 CGFloat 
 GMSFeatureStyleStrokeWidthUnspecified

    • Value to use for pointRadius parameter when the point radius should be unchanged.

      Declaration

      Swift

        class 
 let 
 pointRadiusUnspecified 
 : 
 CGFloat

      Objective-C

        extern 
 const 
 CGFloat 
 GMSFeatureStylePointRadiusUnspecified

    • Average Earth radius in meters.

      Declaration

      Swift

        let 
 kGMSEarthRadius 
 : 
 CLLocationDistance

      Objective-C

        static 
 const 
 CLLocationDistance 
 kGMSEarthRadius 
 = 
 6371009 
 . 
 0

    • The default position of the ground anchor of a GMSGroundOverlay the center point of the icon.

      Declaration

      Swift

        let 
 kGMSGroundOverlayDefaultAnchor 
 : 
 CGPoint

      Objective-C

        extern 
 const 
 CGPoint 
 kGMSGroundOverlayDefaultAnchor

    • kGMSLayerCameraLatitudeKey ranges from [-85, 85], and values outside this range will be clamped.

      @related GMSMapLayer

      Declaration

      Swift

        let 
 kGMSLayerCameraLatitudeKey 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 _Nonnull 
 kGMSLayerCameraLatitudeKey

    • kGMSLayerCameraLongitudeKey ranges from [-180, 180), and values outside this range will be wrapped to within this range.

      @related GMSMapLayer

      Declaration

      Swift

        let 
 kGMSLayerCameraLongitudeKey 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 _Nonnull 
 kGMSLayerCameraLongitudeKey

    • kGMSLayerCameraBearingKey ranges from [0, 360), and values are wrapped.

      @related GMSMapLayer

      Declaration

      Swift

        let 
 kGMSLayerCameraBearingKey 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 _Nonnull 
 kGMSLayerCameraBearingKey

    • kGMSLayerCameraZoomLevelKey ranges from [kGMSMinZoomLevel, kGMSMaxZoomLevel], and values are clamped.

      @related GMSMapLayer

      Declaration

      Swift

        let 
 kGMSLayerCameraZoomLevelKey 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 _Nonnull 
 kGMSLayerCameraZoomLevelKey

    • kGMSLayerCameraViewingAngleKey ranges from zero (i.e., facing straight down) and to between 30 and 45 degrees towards the horizon, depending on the model zoom level.

      @related GMSMapLayer

      Declaration

      Swift

        let 
 kGMSLayerCameraViewingAngleKey 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 _Nonnull 
 kGMSLayerCameraViewingAngleKey

    • The default position of the ground anchor of a GMSMarker : the center bottom point of the marker icon.

      Declaration

      Swift

        let 
 kGMSMarkerDefaultGroundAnchor 
 : 
 CGPoint

      Objective-C

        extern 
 const 
 CGPoint 
 kGMSMarkerDefaultGroundAnchor

    • The default position of the info window anchor of a GMSMarker : the center top point of the marker icon.

      Declaration

      Swift

        let 
 kGMSMarkerDefaultInfoWindowAnchor 
 : 
 CGPoint

      Objective-C

        extern 
 const 
 CGPoint 
 kGMSMarkerDefaultInfoWindowAnchor

    • Declaration

      Swift

        let 
 kGMSMarkerLayerLatitude 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 kGMSMarkerLayerLatitude

    • Declaration

      Swift

        let 
 kGMSMarkerLayerLongitude 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 kGMSMarkerLayerLongitude

    • Declaration

      Swift

        let 
 kGMSMarkerLayerRotation 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 kGMSMarkerLayerRotation

    • Declaration

      Swift

        let 
 kGMSMarkerLayerOpacity 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 kGMSMarkerLayerOpacity

    • kGMSLayerPanoramaHeadingKey ranges from [0, 360).

      @related GMSPanoramaLayer

      Declaration

      Swift

        let 
 kGMSLayerPanoramaHeadingKey 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 _Nonnull 
 kGMSLayerPanoramaHeadingKey

    • kGMSLayerPanoramaPitchKey ranges from [-90, 90].

      @related GMSPanoramaLayer

      Declaration

      Swift

        let 
 kGMSLayerPanoramaPitchKey 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 _Nonnull 
 kGMSLayerPanoramaPitchKey

    • kGMSLayerCameraZoomLevelKey ranges from [1, 5], default 1.

      @related GMSPanoramaLayer

      Declaration

      Swift

        let 
 kGMSLayerPanoramaZoomKey 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 _Nonnull 
 kGMSLayerPanoramaZoomKey

    • kGMSLayerPanoramaFOVKey ranges from 1, 160 , default 90.

      @related GMSPanoramaLayer

      Declaration

      Swift

        let 
 kGMSLayerPanoramaFOVKey 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 _Nonnull 
 kGMSLayerPanoramaFOVKey

    • kGMSEquatorProjectedMeter may be useful when specifying lengths for segment in “projected” units. The value of kGMSEquatorProjectedMeter , 1/(pi * EarthRadius) , represents the length of one meter at the equator in projected units. For example to specify a projected length that corresponds to 100km at the equator use 100000 * kGMSEquatorProjectedMeter . See [GMSPath segmentsForLength:kind:] , [GMSPath lengthOfKind:] and kGMSLengthProjected .

      Declaration

      Swift

        let 
 kGMSEquatorProjectedMeter 
 : 
 Double

      Objective-C

        extern 
 const 
 double 
 kGMSEquatorProjectedMeter

    • Declaration

      Swift

        let 
 kGMSPolygonLayerStrokeWidth 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 kGMSPolygonLayerStrokeWidth

    • Declaration

      Swift

        let 
 kGMSPolygonLayerStrokeColor 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 kGMSPolygonLayerStrokeColor

    • Declaration

      Swift

        let 
 kGMSPolygonLayerFillColor 
 : 
 String

      Objective-C

        extern 
 NSString 
 * 
 const 
 kGMSPolygonLayerFillColor

    • Stub tile that is used to indicate that no tile exists for a specific tile coordinate. May be returned by -tileForX:y:zoom: on GMSTileOverlay .

      Declaration

      Swift

        let 
 kGMSTileLayerNoTile 
 : 
 UIImage

      Objective-C

        extern 
 UIImage 
 * 
 const 
 _Nonnull 
 kGMSTileLayerNoTile
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