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Showing content from https://developers.google.com/maps/documentation/ios-sdk/reference/objc/ below:

GoogleMaps Framework Reference | Maps SDK for iOS

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Classes

The following classes are available globally.

A result from a reverse geocode request, containing a human-readable address. This class is immutable and should not be instantiated directly unless under testing circumstances. Obtain an instance via GMSGeocoder.

Some of the fields may be nil, indicating they are not present.
Declaration
Swift
```
class GMSAddress : NSObject, NSCopying, NSSecureCoding
```
Objective-C
```
@interface GMSAddress : NSObject <NSCopying, NSSecureCoding>
```
An advanced marker is an icon placed at a particular point on the map’s surface.
Declaration
Objective-C
```
@interface GMSAdvancedMarker : GMSMarker
```
GMSCALayer is a superclass used by layers in the Google Maps SDK for iOS, such as GMSMapLayer and GMSPanoramaLayer.

This is an implementation detail and it should not be instantiated directly.
Declaration
Swift
```
class GMSCALayer : CALayer
```
Objective-C
```
@interface GMSCALayer : CALayer
```

An immutable class that aggregates all camera position parameters.

Declaration

Swift

class GMSCameraPosition : NSObject, NSCopying, NSMutableCopying

Objective-C

@interface GMSCameraPosition : NSObject <NSCopying, NSMutableCopying>

GMSCameraUpdate represents an update that may be applied to a GMSMapView.

It encapsulates some logic for modifying the current camera.

It should only be constructed using the factory helper methods below.
Declaration
Swift
```
class GMSCameraUpdate : NSObject
```
Objective-C
```
@interface GMSCameraUpdate : NSObject
```
A circle on the Earth’s surface (spherical cap).
GMSCoordinateBounds represents a rectangular bounding box on the Earth’s surface. GMSCoordinateBounds is immutable and can’t be modified after construction.
Declaration
Swift
```
class GMSCoordinateBounds : NSObject
```
Objective-C
```
@interface GMSCoordinateBounds : NSObject
```
An interface representing a feature from a dataset.

The featureType of a DatasetFeature will always be GMSFeatureTypeDataset.
Declaration
Swift
```
class DatasetFeature : NSObject, Feature
```
Objective-C
```
@interface GMSDatasetFeature : NSObject <GMSFeature>
```
An interface representing a feature layer for a dataset.

The featureType of a GMSDatasetFeatureLayer will always be GMSFeatureTypeDataset.
Declaration
Swift
```
class DatasetFeatureLayer : FeatureLayer<DatasetFeature>
```
A class representing a collection of all features of the same GMSFeatureType, whose style can be overridden on the client. Each GMSFeatureType will have one corresponding GMSFeatureLayer.
Declaration
Swift
```
class FeatureLayer<T> : NSObject where T : Feature
```
Objective-C
```
@interface GMSFeatureLayer<__covariant T : id <GMSFeature>> : NSObject
```

Specifies how a map feature should appear when displayed on a map.

Declaration

Swift

class FeatureStyle : NSObject, NSCopying, NSMutableCopying

Objective-C


@interface GMSFeatureStyle : NSObject <NSCopying, NSMutableCopying>

Mutable version of GMSFeatureStyle.
Declaration
Swift
```
class MutableFeatureStyle : FeatureStyle
```
Exposes a service for reverse geocoding. This maps Earth coordinates (latitude and longitude) to a collection of addresses near that coordinate.
Declaration
Swift
```
class GMSGeocoder : NSObject
```
Objective-C
```
@interface GMSGeocoder : NSObject
```

A collection of results from a reverse geocode request.

Declaration

Swift

class GMSReverseGeocodeResponse : NSObject, NSCopying

Objective-C

@interface GMSReverseGeocodeResponse : NSObject <NSCopying>

GMSGroundOverlay specifies the available options for a ground overlay that exists on the Earth’s surface. Unlike a marker, the position of a ground overlay is specified explicitly and it does not face the camera.
Declaration
Objective-C
```
@interface GMSGroundOverlay : GMSOverlay
```

Describes a building which contains levels.

Declaration

Swift

class GMSIndoorBuilding : NSObject

Objective-C

@interface GMSIndoorBuilding : NSObject

Provides ability to observe or control the display of indoor level data.

Like GMSMapView, GMSIndoorDisplay may only be used from the main thread.
Declaration
Swift
```
class GMSIndoorDisplay : NSObject
```
Objective-C
```
@interface GMSIndoorDisplay : NSObject
```

Declaration

Swift

class GMSIndoorLevel : NSObject

Objective-C

@interface GMSIndoorLevel : NSObject

- (instancetype)init NS_UNAVAILABLE;

/** Localized display name for the level, e.g. "Ground floor". */
@property(nonatomic, copy, readonly, nullable) NSString *name;

/** Localized short display name for the level, e.g. "1". */
@property(nonatomic, copy, readonly, nullable) NSString *shortName;

@end

An opaque identifier for a custom map configuration.

Declaration

Swift

class GMSMapID : NSObject, NSCopying

Objective-C

@interface GMSMapID : NSObject <NSCopying>

GMSMapLayer is a custom subclass of CALayer, provided as the layer class on GMSMapView. This layer should not be instantiated directly. It provides model access to the camera normally defined on GMSMapView.

Modifying or animating these properties will typically interrupt any current gesture on GMSMapView, e.g., a user’s pan or rotation. Similarly, if a user performs an enabled gesture during an animation, the animation will stop ‘in-place’ (at the current presentation value).
GMSMapStyle holds details about a style which can be applied to a map.

With style options you can customize the presentation of the standard Google map styles, changing the visual display of features like roads, parks, and other points of interest. As well as changing the style of these features, you can also hide features entirely. This means that you can emphasize particular components of the map or make the map complement the content of your app.

For more information see: https://developers.google.com/maps/documentation/ios-sdk/styling
Declaration
Swift
```
class GMSMapStyle : NSObject
```
Objective-C
```
@interface GMSMapStyle : NSObject
```
This is the main class of the Google Maps SDK for iOS and is the entry point for all methods related to the map.

The map should be instantiated with one of the constructors -init or -initWithOptions:.

GMSMapView can only be read and modified from the main thread, similar to all UIKit objects. Calling these methods from another thread will result in an exception or undefined behavior.
Declaration
Swift
```
class GMSMapView : UIView
```
Objective-C
```
@interface GMSMapView : UIView
```
This class defines initialization-time options for GMSMapView.
Declaration
Swift
```
class GMSMapViewOptions : NSObject
```
Objective-C
```
@interface GMSMapViewOptions : NSObject
```
A marker is an icon placed at a particular point on the map’s surface. A marker’s icon is drawn oriented against the device’s screen rather than the map’s surface; i.e., it will not necessarily change orientation due to map rotations, tilting, or zooming.
GMSMarkerLayer is a subclass of GMSOverlayLayer, available on a per-marker basis, that allows animation of several properties of its associated GMSMarker.

Note that this CALayer is never actually rendered directly, as GMSMapView is provided entirely via an OpenGL layer. As such, adjustments or animations to ‘default’ properties of CALayer will not have any effect.
GMSMutablePath is a dynamic (resizable) array of CLLocationCoordinate2D. All coordinates must be valid. GMSMutablePath is the mutable counterpart to the immutable GMSPath.
Declaration
Swift
```
class GMSMutablePath : GMSPath
```
Objective-C
```
@interface GMSMutablePath : GMSPath
```
GMSOverlay is an abstract class that represents some overlay that may be attached to a specific GMSMapView. It may not be instantiated directly; instead, instances of concrete overlay types should be created directly (such as GMSMarker, GMSPolyline, and GMSPolygon).

This supports the NSCopying protocol; [overlay_ copy] will return a copy of the overlay type, but with map set to nil.
Declaration
Swift
```
class GMSOverlay : NSObject, NSCopying
```
Objective-C
```
@interface GMSOverlay : NSObject <NSCopying>
```
GMSOverlayLayer is a custom subclass of CALayer, and an abstract baseclass for GMSOverlay layers that allow custom animations.

Note that this CALayer or any subclass are never actually rendered directly, as GMSMapView is provided entirely via an OpenGL layer. As such, adjustments or animations to ‘default’ properties of CALayer will not have any effect.

This is an implementation detail and it should not be instantiated directly.
Declaration
Swift
```
class GMSOverlayLayer : CALayer
```
Objective-C
```
@interface GMSOverlayLayer : CALayer
```
GMSPanorama represents metadata for a specific panorama on the Earth. This class is not instantiable directly and is obtained via GMSPanoramaService or GMSPanoramaView.
Declaration
Swift
```
class GMSPanorama : NSObject
```
Objective-C
```
@interface GMSPanorama : NSObject
```
GMSPanoramaCamera is used to control the viewing direction of a GMSPanoramaView. It does not contain information about which particular panorama should be displayed.
Declaration
Swift
```
class GMSPanoramaCamera : NSObject
```
Objective-C
```
@interface GMSPanoramaCamera : NSObject
```
GMSPanoramaCameraUpdate represents an update that may be applied to a GMSPanoramaView. It encapsulates some logic for modifying the current camera. It should only be constructed using the factory helper methods below.
Declaration
Swift
```
class GMSPanoramaCameraUpdate : NSObject
```
Objective-C
```
@interface GMSPanoramaCameraUpdate : NSObject
```
GMSPanoramaLayer is a custom subclass of CALayer, provided as the layer class on GMSPanoramaView. This layer should not be instantiated directly.
Declaration
Objective-C
```
@interface GMSPanoramaLayer : GMSCALayer
```

Links from a GMSPanorama to neighboring panoramas.

Declaration

Swift

class GMSPanoramaLink : NSObject

Objective-C

@interface GMSPanoramaLink : NSObject

GMSPanoramaService can be used to request panorama metadata even when a GMSPanoramaView is not active.

Get an instance like this: [[GMSPanoramaService alloc] init].
Declaration
Swift
```
class GMSPanoramaService : NSObject
```
Objective-C
```
@interface GMSPanoramaService : NSObject
```
A panorama is used to display Street View imagery. It should be constructed via [[GMSPanoramaView alloc] initWithFrame:], and configured post-initialization.

All properties and methods should be accessed on the main thread, similar to all UIKit objects. The GMSPanoramaViewDelegate methods will also be called back only on the main thread.

The backgroundColor of this view is shown while no panorama is visible, such as while it is loading or if the panorama is later set to nil. The alpha color of backgroundColor is not supported.
Declaration
Swift
```
class GMSPanoramaView : UIView
```
Objective-C
```
@interface GMSPanoramaView : UIView
```
GMSPath encapsulates an immutable array of CLLocationCooordinate2D. All the coordinates of a GMSPath must be valid. The mutable counterpart is GMSMutablePath.
Declaration
Swift
```
class GMSPath : NSObject, NSCopying, NSMutableCopying
```
Objective-C
```
@interface GMSPath : NSObject <NSCopying, NSMutableCopying>
```
Provides a custom pin image for an advanced marker.
Declaration
Swift
```
class GMSPinImage : UIImage
```
Objective-C
```
@interface GMSPinImage : UIImage
```
Provides a custom pin image glyph for an advanced marker.
Declaration
Swift
```
class GMSPinImageGlyph : NSObject
```
Objective-C
```
@interface GMSPinImageGlyph : NSObject
```
Provides pin image customization for an advanced marker.
Declaration
Swift
```
class GMSPinImageOptions : NSObject
```
Objective-C
```
@interface GMSPinImageOptions : NSObject
```

An interface representing a place feature (a feature with a Place ID).

Declaration

Swift

class PlaceFeature : NSObject, Feature

Objective-C


@interface GMSPlaceFeature : NSObject <GMSFeature>

GMSPolygon defines a polygon that appears on the map. A polygon (like a polyline) defines a series of connected coordinates in an ordered sequence; additionally, polygons form a closed loop and define a filled region.
GMSPolygonLayer is a subclass of GMSOverlayLayer, available on a per-polygon basis, that allows animation of several properties of its associated GMSPolygon.

Note that this CALayer is never actually rendered directly, as GMSMapView is provided entirely via an OpenGL layer. As such, adjustments or animations to ‘default’ properties of CALayer will not have any effect.
GMSPolyline specifies the available options for a polyline that exists on the Earth’s surface. It is drawn as a physical line between the points specified in path.
Defines a mapping between Earth coordinates CLLocationCoordinate2D and coordinates in the map’s view CGPoint. A projection is constant and immutable, in that the mapping it embodies never changes. The mapping is not necessarily linear.

Passing invalid Earth coordinates (i.e., per CLLocationCoordinate2DIsValid) to this object may result in undefined behavior.

This class should not be instantiated directly unless under testing conditions. Instead, obtain it via projection on GMSMapView.
Declaration
Swift
```
class GMSProjection : NSObject
```
Objective-C
```
@interface GMSProjection : NSObject
```
Service class for the Google Maps SDK for iOS.

This class is not thread safe. All methods should only be invoked on the main thread.
Declaration
Swift
```
class GMSServices : NSObject
```
Objective-C
```
@interface GMSServices : NSObject
```
The abstract base class for polyline styles that draw a repeating image over a GMSStyleSpan.
Declaration
Swift
```
class GMSStampStyle : NSObject
```
Objective-C
```
@interface GMSStampStyle : NSObject
```
A polyline style that draws a repeating image over a GMSStyleSpan.
Describes the drawing style for a stamp image over a GMSStyleSpan.

Note

Only supports transparent background. If any color is set to the GMSStyleSpan it will only be treated as a fallback.

Note

Use of GMSSpriteStyle requires Metal rendering framework. See GMSServices::setMetalRendererEnabled:(BOOL) to learn how to enable Metal. If GMSStyleSpan is added to a map without Metal being enabled, the stamp will not render and instead the polyline span will attempt to fallback to any set color. If no color is set, it will fallback to the default polyline color, [UIColor blueColor].

Note

Use GMSMapView::mapCapabilities property to query if a GMSMapView supports GMSSpriteStyle.
Describes the drawing style for one-dimensional entities such as polylines.
Declaration
Swift
```
class GMSStrokeStyle : NSObject
```
Objective-C
```
@interface GMSStrokeStyle : NSObject
```
Describes the style for some region of a polyline.
Declaration
Swift
```
class GMSStyleSpan : NSObject
```
Objective-C
```
@interface GMSStyleSpan : NSObject
```
GMSSyncTileLayer is an abstract subclass of GMSTileLayer that provides a sync interface to generate image tile data.
GMSTileLayer is an abstract class that allows overlaying of custom image tiles on a specified GMSMapView. It may not be initialized directly, and subclasses must implement the tileForX:y:zoom: method to return tiles.

At zoom level 0 the whole world is a square covered by a single tile, and the coordinates x and y are both 0 for that tile. At zoom level 1, the world is covered by 4 tiles with x and y being 0 or 1, and so on.
Declaration
Swift
```
class GMSTileLayer : NSObject
```
Objective-C
```
@interface GMSTileLayer : NSObject
```
Settings for the user interface of a GMSMapView.
Declaration
Swift
```
class GMSUISettings : NSObject
```
Objective-C
```
@interface GMSUISettings : NSObject
```

GMSURLTileProvider fetches tiles based on the URLs returned from a GMSTileURLConstructor. For example:

   GMSTileURLConstructor constructor = ^(NSUInteger x, NSUInteger y, NSUInteger zoom) {
     NSString *URLStr =
         [NSString stringWithFormat:@"https://example.com/%d/%d/%d.png", x, y, zoom];
     return [NSURL URLWithString:URLStr];
   };
   GMSTileLayer *layer =
       [GMSURLTileLayer tileLayerWithURLConstructor:constructor];
   layer.userAgent = @"SDK user agent";
   layer.map = map;

GMSURLTileProvider may not be subclassed and should only be created via its convenience constructor.

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-03-24 UTC.

[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-24 UTC."],[[["The Google Maps SDK for iOS provides classes for displaying and interacting with maps, including features like markers, polygons, and polylines."],["Core map classes like `GMSMapView` and `GMSCameraPosition` handle map display, camera control, and user interaction."],["Overlays such as `GMSMarker`, `GMSCircle`, and `GMSPolygon` enable the addition of visual elements to the map."],["Indoor maps and Street View panoramas are supported through classes like `GMSIndoorBuilding` and `GMSPanoramaView`."],["Feature layers and styling options allow for customization of the map's appearance using classes like `GMSFeatureLayer` and `GMSFeatureStyle`."]]],[]]

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