### Get Started with Google Maps Platform

Source: https://developers.google.com/maps/documentation/ios-sdk?hl=fr

Learn how to create an account, generate an API key, and start building maps with the Google Maps Platform.

```text
map
```

--------------------------------

### Example: Create and Configure GMSURLTileLayer

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSURLTileLayer.html

This example demonstrates how to create a GMSTileURLConstructor, initialize a GMSURLTileLayer with it, set a custom user agent, and assign it to a map.

```Objective-C
   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;
 
```

--------------------------------

### Link Frameworks and Libraries for Manual Installation

Source: https://developers.google.com/maps/documentation/ios-sdk/start

Add these frameworks and libraries in the 'Link Binary with Libraries' section of your application's target Build Phases for manual installation.

```bash
Accelerate.framework
Contacts.framework
CoreData.framework
CoreGraphics.framework
CoreImage.framework
CoreLocation.framework
CoreTelephony.framework
CoreText.framework
GLKit.framework
ImageIO.framework
libc++.tbd
libz.tbd
Metal.framework
MetricKit.framework
OpenGLES.framework (Only if you are using OpenGL)
QuartzCore.framework
```

--------------------------------

### Install Pods

Source: https://developers.google.com/maps/documentation/ios-sdk/config

Command to install dependencies defined in the Podfile.

```bash
pod install
```

--------------------------------

### Example: Create and Configure GMSURLTileLayer

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSURLTileLayer?hl=es-419

This example demonstrates how to create a GMSTileURLConstructor, initialize a GMSURLTileLayer with it, set a custom user agent, and add the layer to a map.

```Objective-C
   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;
 
```

--------------------------------

### GMSURLTileLayer Example

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes?hl=tr

Fetches tiles based on URLs from a GMSTileURLConstructor. This class may not be subclassed.

```objc
   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;
 
```

--------------------------------

### Open the sample project in Xcode

Source: https://developers.google.com/maps/documentation/ios-sdk/examples/basic-map

Commands to navigate to the sample directory and open the Xcode project file.

```bash
cd maps-sdk-for-ios-samples/GoogleMaps-Swift
open GoogleMapsSwiftXCFrameworkDemos.xcodeproj
```

```bash
cd maps-sdk-for-ios-samples-main/GoogleMaps
open GoogleMapsDemos.xcodeproj
```

--------------------------------

### Map View Marker Drag Start

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Protocols/GMSMapViewDelegate.html?hl=de

Called when a user begins dragging a marker on the map. No setup required.

```swift
optional func mapView(_ mapView: GMSMapView, didBeginDragging marker: GMSMarker)
```

```objective-c
- (void)mapView:(nonnull GMSMapView *)mapView
    didBeginDraggingMarker:(nonnull GMSMarker *)marker;
```

--------------------------------

### Map View Tile Rendering Start

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Protocols/GMSMapViewDelegate.html?hl=de

Called when the map view begins rendering tiles or labels. No setup required.

```swift
optional func mapViewDidStartTileRendering(_ mapView: GMSMapView)
```

```objective-c
- (void)mapViewDidStartTileRendering:(nonnull GMSMapView *)mapView;
```

--------------------------------

### Get SDK Long Version

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSServices.html?hl=es

Returns the long version string for the current release of the Google Maps SDK for iOS, for example, '1.0.0 (102.1)'.

```Swift
class func sdkLongVersion() -> String
```

```Objective-C
+ (nonnull NSString *)SDKLongVersion;
```

--------------------------------

### GMSPanoramaCamera Initializers and Convenience Constructors

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSPanoramaCamera.html

Explains how to initialize and configure GMSPanoramaCamera using various methods.

```APIDOC
## GMSPanoramaCamera Initializers and Convenience Constructors

### Description
`GMSPanoramaCamera` controls the viewing direction of a `GMSPanoramaView`. It is configured using properties such as `orientation`, `zoom`, and `FOV`. The `initWithOrientation:zoom:FOV:` initializer sets these properties, with values clamped to acceptable ranges. Convenience constructors, like `cameraWithHeading:pitch:zoom:` or `cameraWithOrientation:zoom:FOV:`, allow setting camera properties, including heading, pitch, and FOV which has a range between 1 and 160, and the zoom which is between 1 and 5.

### Initializers

#### `initWithOrientation:zoom:FOV:`
Initializes a `GMSPanoramaCamera` with the specified orientation, zoom level, and Field of View (FOV).

### Convenience Constructors

#### `cameraWithHeading:pitch:zoom:`
Creates a `GMSPanoramaCamera` with the specified heading, pitch, and zoom level.

#### `cameraWithOrientation:zoom:FOV:`
Creates a `GMSPanoramaCamera` with the specified orientation, zoom level, and Field of View (FOV).

### Parameters

#### Zoom
- **zoom** (Float) - The zoom level. Range: 1 to 5.

#### FOV (Field of View)
- **fov** (Float) - The Field of View. Range: 1 to 160.
```

--------------------------------

### Install CocoaPods

Source: https://developers.google.com/maps/documentation/ios-sdk/config

Command to install the CocoaPods dependency manager on macOS.

```bash
sudo gem install cocoapods
```

--------------------------------

### Clone the sample app repository

Source: https://developers.google.com/maps/documentation/ios-sdk/code-samples

Use git clone to get the sample app repository from GitHub. This command downloads all the necessary files to your local machine.

```bash
git clone https://github.com/googlemaps-samples/maps-sdk-for-ios-samples.git
```

--------------------------------

### Get Default Level Index - Objective-C

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSIndoorBuilding.html?hl=fr

Gets the index of the default level within the building's levels array.

```objectivec
@property (nonatomic, readonly) NSUInteger defaultLevelIndex;
```

--------------------------------

### Get Default Level Index - Swift

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSIndoorBuilding.html?hl=fr

Gets the index of the default level within the building's levels array.

```swift
var defaultLevelIndex: UInt { get }
```

--------------------------------

### Navigate to the GoogleMaps directory (Swift)

Source: https://developers.google.com/maps/documentation/ios-sdk/code-samples

Change directory to the Swift sample app and open the Xcode project. This prepares the project for API key integration.

```bash
cd maps-sdk-for-ios-samples/GoogleMaps-Swift
open GoogleMapsSwiftXCFrameworkDemos.xcodeproj
```

--------------------------------

### Get Camera Heading - Objective-C

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Structs/GMSOrientation.html?hl=ko

Retrieves the camera's horizontal angle in degrees. Use this to get the current heading of the camera.

```objective-c
const CLLocationDirection heading
```

--------------------------------

### Initialize SDKs with API Key

Source: https://developers.google.com/maps/documentation/ios-sdk/current-place-tutorial

Provide your API key to the GMSPlacesClient and GMSServices within the application launch method.

```swift
GMSPlacesClient.provideAPIKey("YOUR_API_KEY")
GMSServices.provideAPIKey("YOUR_API_KEY")
```

--------------------------------

### Navigate to the GoogleMaps directory (Objective-C)

Source: https://developers.google.com/maps/documentation/ios-sdk/code-samples

Change directory to the Objective-C sample app and open the Xcode project. This prepares the project for API key integration.

```bash
cd maps-sdk-for-ios-samples-main/GoogleMaps
open GoogleMapsDemos.xcodeproj
```

--------------------------------

### Get Camera Heading - Swift

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Structs/GMSOrientation.html?hl=ko

Retrieves the camera's horizontal angle in degrees. Use this to get the current heading of the camera.

```swift
var heading: CLLocationDirection { get }
```

--------------------------------

### Show an info window for a marker

Source: https://developers.google.com/maps/documentation/ios-sdk/code-samples?hl=pt-br

This example demonstrates how to display an info window when a marker is tapped. Ensure you have a marker added to the map before implementing this.

```swift
func mapView(_ mapView: GMSMapView, didTap marker: GMSMarker) -> Bool {
  // This method is called when a marker is tapped.
  // You can customize the info window content here.
  mapView.selectedMarker = marker
  return true
}
```

--------------------------------

### Get Camera Pitch - Objective-C

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Structs/GMSOrientation.html?hl=ko

Retrieves the camera's vertical angle in degrees from the horizon. Use this to get the current pitch of the camera.

```objective-c
const double pitch
```

--------------------------------

### Initialize Map and Location Services in Objective-C

Source: https://developers.google.com/maps/documentation/ios-sdk/current-place-tutorial?hl=pt-br

Setup for CLLocationManager, GMSMapView, and GMSPlacesClient within a UIViewController.

```Objective-C
#import "MapViewController.h"
#import "PlacesViewController.h"
@import CoreLocation;
@import GooglePlaces;
@import GoogleMaps;

@interface MapViewController () <CLLocationManagerDelegate>

@end

@implementation MapViewController {
  CLLocationManager *locationManager;
  CLLocation * _Nullable currentLocation;
  GMSMapView *mapView;
  GMSPlacesClient *placesClient;
  float preciseLocationZoomLevel;
  float approximateLocationZoomLevel;

  // An array to hold the list of likely places.
  NSMutableArray<GMSPlace *> *likelyPlaces;

  // The currently selected place.
  GMSPlace * _Nullable selectedPlace;
}

- (void)viewDidLoad {
  [super viewDidLoad];
  preciseLocationZoomLevel = 15.0;
  approximateLocationZoomLevel = 15.0;

  // Initialize the location manager.
  locationManager = [[CLLocationManager alloc] init];
  locationManager.desiredAccuracy = kCLLocationAccuracyBest;
  [locationManager requestWhenInUseAuthorization];
  locationManager.distanceFilter = 50;
  [locationManager startUpdatingLocation];
  locationManager.delegate = self;

  placesClient = [GMSPlacesClient sharedClient];

  // A default location to use when location permission is not granted.
  CLLocationCoordinate2D defaultLocation = CLLocationCoordinate2DMake(-33.869405, 151.199);

  // Create a map.
  float zoomLevel = locationManager.accuracyAuthorization == CLAccuracyAuthorizationFullAccuracy ? preciseLocationZoomLevel : approximateLocationZoomLevel;
  GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:defaultLocation.latitude
                                                          longitude:defaultLocation.longitude
                                                               zoom:zoomLevel];
  mapView = [GMSMapView mapWithFrame:self.view.bounds camera:camera];
  mapView.settings.myLocationButton = YES;
  mapView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
  mapView.myLocationEnabled = YES;

  // Add the map to the view, hide it until we've got a location update.
  [self.view addSubview:mapView];
  mapView.hidden = YES;

  [self listLikelyPlaces];
}
```

--------------------------------

### Get Camera Pitch - Swift

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Structs/GMSOrientation.html?hl=ko

Retrieves the camera's vertical angle in degrees from the horizon. Use this to get the current pitch of the camera.

```swift
var pitch: Double { get }
```

--------------------------------

### GMSMapStyle Initialization Methods

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapStyle.html?hl=ja

Methods to create a GMSMapStyle instance from either a JSON string or a file URL.

```APIDOC
## +styleWithJSONString:error:

### Description
Creates a style using a string containing JSON. Returns nil and populates error if the style is invalid.

### Method
Class Method

### Parameters
- **style** (NSString) - Required - A string containing the JSON style definition.
- **error** (NSError**) - Optional - A pointer to an error object to populate if initialization fails.

---

## +styleWithContentsOfFileURL:error:

### Description
Creates a style using a file containing JSON. Returns nil and populates error if the style is invalid, the file cannot be read, or the URL is not a file URL.

### Method
Class Method

### Parameters
- **fileURL** (NSURL) - Required - The URL of the file containing the JSON style definition.
- **error** (NSError**) - Optional - A pointer to an error object to populate if initialization fails.
```

--------------------------------

### Example GeoJSON Feature Entry

Source: https://developers.google.com/maps/documentation/ios-sdk/dds-datasets/style-data-features

This is an example of a GeoJSON feature entry for a park in New York City, illustrating the structure of properties and geometry data.

```json
{
  "type": "Feature",
  "properties": {
    "jurisdiction": "DPR",
    "mapped": "False",
    "zipcode": "11356",
    "acres": "0.05",
    "location": "College Pl., College Pt. Blvd., bet. 11 Ave. and 12 Ave.",
    "nys_assembly": "27",
    "councildistrict": "19",
    "url": "http://www.nycgovparks.org/parks/Q042/",
    "typecategory": "Triangle/Plaza",
    "us_congress": "14",
    "eapply": "Poppenhusen Park",
    "parentid": "Q-07",
    "gispropnum": "Q042",
    "retired": "false",
    "communityboard": "407",
    "objectid": "6248",
    "globalid": "F4810079-CBB9-4BE7-BBFA-B3C0C35D5DE5",
    "name311": "Poppenhusen Park",
    "department": "Q-07",
    "pip_ratable": "true",
    "subcategory": "Sitting Area/Triangle/Mall",
    "precinct": "109",
    "permit": "true",
    "acquisitiondate": null,
    "omppropid": "Q042",
    "gisobjid": "100000301",
    "signname": "Poppenhusen Park",
    "address": null,
    "permitparent": "Q-07",
    "class": "PARK",
    "nys_senate": "11",
    "permitdistrict": "Q-07",
    "borough": "Q",
    "waterfront": "false"
  },
  "geometry": {
    "type": "MultiPolygon",
    "coordinates": [
      [
        [
          [
            -73.84575702371716,
            40.78796240884273
          ],
          [
            -73.84593393292693,
            40.78796857347548
          ],
          [
            -73.84577256469657,
            40.787651355629556
          ],
          [
            -73.84575702371716,
            40.78796240884273
          ]
        ]
      ]
    ]
  }
}
```

--------------------------------

### GMSMapStyle Initialization Methods

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapStyle.html?hl=fr

Methods for creating a GMSMapStyle instance from either a JSON string or a local file URL.

```APIDOC
## +styleWithJSONString:error:

### Description
Creates a style using a string containing JSON. Returns nil and populates error if the style is invalid.

### Method
Class Method

### Parameters
- **style** (NSString) - Required - A string containing the JSON style definition.
- **error** (NSError**) - Optional - A pointer to an error object to be populated if initialization fails.

---

## +styleWithContentsOfFileURL:error:

### Description
Creates a style using a file containing JSON. Returns nil and populates error if the style is invalid, the file cannot be read, or the URL is not a file URL.

### Method
Class Method

### Parameters
- **fileURL** (NSURL) - Required - The URL of the file containing the JSON style definition.
- **error** (NSError**) - Optional - A pointer to an error object to be populated if initialization fails.
```

--------------------------------

### Initialize Map View and Camera

Source: https://developers.google.com/maps/documentation/ios-sdk/examples/draw-polygons?hl=bn

Sets up the GMSMapView with a specified camera position. The delegate is set to enable interaction.

```objc
#import "GoogleMapsDemos/Samples/PolygonsViewController.h"

#import <GoogleMaps/GoogleMaps.h>

@interface PolygonsViewController () 

@property(nonatomic) GMSPolygon *polygonOfNewYork;
@property(nonatomic) GMSPolygon *polygonOfNorthCarolina;

@end

@implementation PolygonsViewController

- (void)viewDidLoad {
  [super viewDidLoad];
  GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:39.13006
                                                          longitude:-77.508545
                                                               zoom:4];
  GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
  mapView.delegate = self;  // needed for didTapOverlay delegate method

  self.view = mapView;
}

- (void)viewDidAppear:(BOOL)animated {
  [super viewDidAppear:animated];

  // Create renderer related objects after view appears, so a renderer will be available; otherwise,
  // behavior is undefined (may result in null ptr derefs).
  GMSMapView *mapView = (GMSMapView *)self.view;

  // Create the first polygon.
  GMSPolygon *polygon = [[GMSPolygon alloc] init];
  polygon.path = [self pathOfNewYorkState];
  polygon.holes = @[ [self pathOfNewYorkStateHole] ];
  polygon.title = @"New York";
  polygon.fillColor = [UIColor colorWithRed:0.25 green:0 blue:0 alpha:0.2f];
  polygon.strokeColor = [UIColor blackColor];
  polygon.strokeWidth = 2;
  polygon.tappable = YES;
  polygon.map = mapView;
  self.polygonOfNewYork = polygon;

  // Copy the existing polygon and its settings and use it as a base for the second polygon.
  polygon = [polygon copy];
  polygon.title = @"North Carolina";
  polygon.path = [self pathOfNorthCarolina];
  polygon.fillColor = [UIColor colorWithRed:0 green:0.25 blue:0 alpha:0.5];
  polygon.map = mapView;
  self.polygonOfNorthCarolina = polygon;
}

- (void)mapView:(GMSMapView *)mapView didTapOverlay:(GMSOverlay *)overlay {
  // When a polygon is tapped, randomly change its fill color to a new hue.
  if ([overlay isKindOfClass:[GMSPolygon class]]) {
    GMSPolygon *polygon = (GMSPolygon *)overlay;
    CGFloat hue = (((float)arc4random() / 0x100000000) * 1.0f);
    polygon.fillColor = [UIColor colorWithHue:hue saturation:1 brightness:1 alpha:0.5];
  }
}

- (GMSPath *)pathOfNewYorkState {
  GMSMutablePath *path = [GMSMutablePath path];
  [path addLatitude:42.5142 longitude:-79.7624];
  [path addLatitude:42.7783 longitude:-79.0672];
  [path addLatitude:42.8508 longitude:-78.9313];
  [path addLatitude:42.9061 longitude:-78.9024];

```

--------------------------------

### GMSMapStyle Initialization Methods

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapStyle.html?hl=id

Methods to create a GMSMapStyle instance from a JSON string or a file URL.

```APIDOC
## +styleWithJSONString:error:

### Description
Creates a style using a string containing JSON. Returns nil and populates error if the style is invalid.

### Method
Class Method

### Parameters
- **style** (NSString) - Required - A string containing the JSON style definition.
- **error** (NSError**) - Optional - A pointer to an error object to be populated if the style is invalid.

---

## +styleWithContentsOfFileURL:error:

### Description
Creates a style using a file containing JSON. Returns nil and populates error if the style is invalid, the file cannot be read, or the URL is not a file URL.

### Method
Class Method

### Parameters
- **fileURL** (NSURL) - Required - The URL of the file containing the JSON style definition.
- **error** (NSError**) - Optional - A pointer to an error object to be populated if the style is invalid or the file is inaccessible.
```

--------------------------------

### GMSFeatureLayer style Example

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSFeatureLayer.html?hl=de

Example demonstrating how to apply dynamic styling to a GMSFeatureLayer based on a set of selected place IDs. The style is updated when selectedPlaceIDs or the style properties change.

```swift
var selectedPlaceIDs = Set<String>()
var style = FeatureStyle(fill: .red, stroke: .clear, strokeWidth: 0)
layer.style = { feature in
  selectedPlaceIDs.contains(feature.placeID) ? style : nil
}


selectedPlaceIDs.insert("foo")

style = FeatureStyle(fill: .clear, stroke: .blue, strokeWidth: 1.5)


layer.style = { feature in
  selectedPlaceIDs.contains(feature.placeID) ? style : nil
}
```

--------------------------------

### panoramaViewDidStartRendering:

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Protocols/GMSPanoramaViewDelegate?hl=fa

Called when rendering starts.

```APIDOC
## panoramaViewDidStartRendering:

### Description
Called when the panorama tiles for the current view have just been requested and are beginning to load.

### Parameters
- **panoramaView** (GMSPanoramaView) - The panorama view instance.
```

--------------------------------

### GMSMapStyle Initialization Methods

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapStyle.html?hl=ru

Methods to create a GMSMapStyle instance from a JSON string or a file URL.

```APIDOC
## +styleWithJSONString:error:

### Description
Creates a style using a string containing JSON. Returns nil and populates error if the style is invalid.

### Method
Class Method

### Parameters
#### Request Body
- **style** (NSString) - Required - A string containing the JSON style definition.
- **error** (NSError**) - Optional - A pointer to an error object to be populated if the style is invalid.

---

## +styleWithContentsOfFileURL:error:

### Description
Creates a style using a file containing JSON. Returns nil and populates error if the style is invalid, the file cannot be read, or the URL is not a file URL.

### Method
Class Method

### Parameters
#### Request Body
- **fileURL** (NSURL) - Required - The URL of the file containing the JSON style definition.
- **error** (NSError**) - Optional - A pointer to an error object to be populated if the style is invalid or the file is inaccessible.
```

--------------------------------

### Get GMSPath count

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSPath.html?hl=de

Returns the number of coordinates in the path.

```Swift
func count() -> UInt
```

```Objective-C
- (NSUInteger)count;
```

--------------------------------

### Initialize with frame or coder (Deprecated)

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapView?hl=vi

Deprecated initialization methods. Use init or initWithOptions: instead.

```Swift
convenience init(frame: CGRect)
```

```Objective-C
- (instancetype)initWithFrame:(CGRect)frame
    __GMS_AVAILABLE_BUT_DEPRECATED_MSG("Use -init or -initWithOptions: instead.");
```

```Swift
convenience init?(coder: NSCoder)
```

```Objective-C
- (nullable instancetype)initWithCoder:(NSCoder *)coder
    __GMS_AVAILABLE_BUT_DEPRECATED_MSG("Use -init or -initWithOptions: instead.");
```

--------------------------------

### GMSURLTileLayer Initialization and Usage

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSURLTileLayer?hl=he

Demonstrates how to initialize and use GMSURLTileLayer, including setting a custom user agent and map.

```APIDOC
## GMSURLTileLayer

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

```objectivec
   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.

### +tileLayerWithURLConstructor:

Convenience constructor. `constructor` must be non-nil.

#### Declaration

Objective-C
```objectivec
+ (nonnull instancetype)tileLayerWithURLConstructor:
    (nonnull GMSTileURLConstructor)constructor;
```

### userAgent

Specify the user agent to describe your application. If this is nil (the default), the default iOS user agent is used for HTTP requests.

#### Declaration

Objective-C
```objectivec
@property (nonatomic, copy, nullable) NSString *userAgent;
```
```

--------------------------------

### GMSMapViewDelegate - mapViewDidStartTileRendering:

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Protocols/GMSMapViewDelegate.html?hl=zh-cn

Called when the map starts rendering tiles.

```APIDOC
## mapViewDidStartTileRendering: GMSMapViewDelegate

### Description
Called when tiles have just been requested or labels have just started rendering.

### Method
`optional func mapViewDidStartTileRendering(_ mapView: GMSMapView)`

### Endpoint
N/A (Delegate Method)

### Parameters
- **mapView** (GMSMapView) - The map view.
```

--------------------------------

### GMSMapViewDelegate -mapViewDidStartTileRendering:

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Protocols/GMSMapViewDelegate.html?hl=ja

Called when the map starts rendering tiles.

```APIDOC
## GMSMapViewDelegate -mapViewDidStartTileRendering:

### Description
Called when tiles have just been requested or labels have just started rendering.

### Method
`optional func mapViewDidStartTileRendering(_ mapView: GMSMapView)`

### Endpoint
N/A (Delegate Method)

### Parameters
#### Path Parameters
None

#### Query Parameters
None

#### Request Body
None

### Request Example
None

### Response
#### Success Response (200)
None

#### Response Example
None
```

--------------------------------

### GMSURLTileLayer Initialization and Usage

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSURLTileLayer.html?hl=zh-cn

Demonstrates how to initialize and use GMSURLTileLayer, including setting a custom user agent.

```APIDOC
## GMSURLTileLayer

`GMSURLTileProvider` fetches tiles based on the URLs returned from a `GMSTileURLConstructor`.

### +tileLayerWithURLConstructor:

Convenience constructor. `constructor` must be non-nil.

#### Declaration
Swift
```swift
convenience init(urlConstructor constructor: @escaping GMSTileURLConstructor)
```

Objective-C
```objc
+ (nonnull instancetype)tileLayerWithURLConstructor:
    (nonnull GMSTileURLConstructor)constructor;
```

### userAgent

Specify the user agent to describe your application. If this is nil (the default), the default iOS user agent is used for HTTP requests.

#### Declaration
Swift
```swift
var userAgent: String? { get set }
```

Objective-C
```objc
@property (nonatomic, copy, nullable) NSString *userAgent;
```

### Example Usage

```objc
   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.
```

--------------------------------

### GMSMapViewDelegate -mapViewDidStartTileRendering:

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Protocols/GMSMapViewDelegate?hl=fa

Called when the map starts rendering tiles.

```APIDOC
## GMSMapViewDelegate -mapViewDidStartTileRendering:

### Description
Called when tiles have just been requested or labels have just started rendering.

### Method
`optional func mapViewDidStartTileRendering(_ mapView: GMSMapView)`

### Endpoint
N/A (Delegate Method)

### Parameters
#### Path Parameters
N/A

#### Query Parameters
N/A

#### Request Body
N/A

### Request Example
N/A

### Response
N/A

#### Success Response (200)
N/A

#### Response Example
N/A
```

--------------------------------

### GMSServices Configuration Methods

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSServices.html?hl=es

Methods for initializing the SDK with an API key, setting options, and enabling crash reporting.

```APIDOC
## +provideAPIKey:

### Description
Provides your API key to the Google Maps SDK for iOS. This must be called exactly once before any iOS Maps SDK object is initialized.

### Method
Class Method

### Parameters
#### Request Body
- **APIKey** (String) - Required - The API key generated via the Google Cloud Platform Console.

### Response
#### Success Response (200)
- **Result** (Bool) - Returns YES if the APIKey was successfully provided.

---

## +provideAPIOptions:

### Description
Provides API options to the Google Maps SDK for iOS. Must be called exactly once before any iOS Maps SDK object is initialized.

### Method
Class Method

### Parameters
#### Request Body
- **APIOptions** (Array<String>) - Required - An array containing an NSString for each option.

### Response
#### Success Response (200)
- **Result** (Bool) - Returns YES if all the APIOptions were successfully provided.

---

## +setAbnormalTerminationReportingEnabled:

### Description
Enables or disables reporting of abnormal SDK terminations. Must be set from the main thread before the services instance is initialized.

### Method
Class Method

### Parameters
#### Request Body
- **enabled** (Bool) - Required - YES to enable reporting, NO to disable.
```

--------------------------------

### GMSMapViewDelegate - mapViewDidStartTileRendering

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Protocols/GMSMapViewDelegate.html?hl=pt-br

Called when the map starts rendering tiles.

```APIDOC
## mapViewDidStartTileRendering GMSMapViewDelegate

### Description
Called when tiles have just been requested or labels have just started rendering.

### Method
`optional func mapViewDidStartTileRendering(_ mapView: GMSMapView)`

### Endpoint
N/A (Delegate Method)

### Parameters
- **mapView** (GMSMapView) - The map view.
```

--------------------------------

### Initialize GMSPanoramaService

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSPanoramaService.html?hl=es

Instantiate the service to begin requesting panorama metadata.

```Objective-C
@interface GMSPanoramaService : NSObject
```

```Objective-C
[[GMSPanoramaService alloc] init]
```

--------------------------------

### GMSServices Initialization and Configuration

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSServices.html?hl=fr

Methods for providing API credentials and configuring global SDK settings before initialization.

```APIDOC
## +provideAPIKey:

### Description
Provides your API key to the Google Maps SDK for iOS. This must be called exactly once before any iOS Maps SDK object is initialized.

### Method
Class Method

### Parameters
#### Request Body
- **APIKey** (String) - Required - The API key generated via the Google Cloud Platform Console.

### Response
#### Success Response (200)
- **Result** (Bool) - Returns YES if the APIKey was successfully provided.

---

## +provideAPIOptions:

### Description
Provides global API options to the Google Maps SDK for iOS. Must be called exactly once before any SDK object is initialized.

### Method
Class Method

### Parameters
#### Request Body
- **APIOptions** (Array<String>) - Required - An array containing an NSString for each option.

### Response
#### Success Response (200)
- **Result** (Bool) - Returns YES if all the APIOptions were successfully provided.
```

--------------------------------

### GMSMapViewDelegate - mapViewDidStartTileRendering

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Protocols/GMSMapViewDelegate?hl=es-419

Called when the map starts rendering tiles.

```APIDOC
## mapViewDidStartTileRendering(_:) GMSMapViewDelegate

### Description
Called when tiles have just been requested or labels have just started rendering.

### Method
`optional func mapViewDidStartTileRendering(_ mapView: GMSMapView)`

### Endpoint
N/A (Delegate Method)

### Parameters
- **mapView** (GMSMapView) - The map view.
```

--------------------------------

### GMSURLTileLayer Initialization and Configuration

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSURLTileLayer?hl=bn

This snippet demonstrates how to initialize and configure a `GMSURLTileLayer`.

```APIDOC
## GMSURLTileLayer

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

```objectivec
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];
};
GMSURLTileLayer *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.

### +tileLayerWithURLConstructor:

Convenience constructor. `constructor` must be non-nil.

#### Declaration

Swift
```swift
convenience init(urlConstructor constructor: @escaping GMSTileURLConstructor)
```

Objective-C
```objectivec
+ (nonnull instancetype)tileLayerWithURLConstructor:
    (nonnull GMSTileURLConstructor)constructor;
```

### userAgent

Specify the user agent to describe your application. If this is nil (the default), the default iOS user agent is used for HTTP requests.

#### Declaration

Swift
```swift
var userAgent: String? { get set }
```

Objective-C
```objectivec
@property (nonatomic, copy, nullable) NSString *userAgent;
```
```

--------------------------------

### Get encoded path string

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSPath.html?hl=de

Returns the path as an encoded string.

```Swift
func encodedPath() -> String
```

```Objective-C
- (nonnull NSString *)encodedPath;
```

--------------------------------

### Initialize GMSPanoramaService

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSPanoramaService.html

Instantiate GMSPanoramaService to begin requesting panorama metadata.

```Objective-C
[[GMSPanoramaService alloc] init]
```

--------------------------------

### Settings

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapView?hl=zh-tw

Gets the GMSUISettings object, which controls user interface settings for the map.

```APIDOC
## settings

### Description
Gets the `GMSUISettings` object, which controls user interface settings for the map.

### Method
GET

### Endpoint
N/A (Property)

### Parameters
None

### Request Example
```swift
let mapSettings = mapView.settings
mapSettings.zoomGestures = false
```

### Response
#### Success Response (200)
- **settings** (GMSUISettings) - The GMSUISettings object for configuring map interactions.
```

--------------------------------

### GMSServices Configuration and Initialization

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSServices.html?hl=id

Methods for providing API credentials and configuring global SDK settings before initialization.

```APIDOC
## +provideAPIKey:

### Description
Provides your API key to the Google Maps SDK for iOS. This must be called exactly once before any iOS Maps SDK object is initialized.

### Method
Class Method

### Parameters
#### Request Body
- **APIKey** (String) - Required - The API key generated via the Google Cloud Platform Console.

### Response
#### Success Response (200)
- **Result** (Bool) - Returns YES if the APIKey was successfully provided.

## +provideAPIOptions:

### Description
Provides global API options to the Google Maps SDK for iOS. Must be called exactly once before any SDK object is initialized.

### Method
Class Method

### Parameters
#### Request Body
- **APIOptions** (Array<String>) - Required - An array containing an NSString for each option.

### Response
#### Success Response (200)
- **Result** (Bool) - Returns YES if all the APIOptions were successfully provided.

## +setAbnormalTerminationReportingEnabled:

### Description
Enables or disables reporting of abnormal SDK terminations. Must be set from the main thread before the services instance is initialized.

### Method
Class Method

### Parameters
#### Request Body
- **enabled** (Bool) - Required - Set to YES to enable reporting (default is YES).
```

--------------------------------

### Settings

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapView?hl=fa

Gets the GMSUISettings object, which controls user interface settings for the map.

```APIDOC
## settings

### Description
Gets the `GMSUISettings` object, which controls user interface settings for the map.

### Method
GET

### Endpoint
N/A (Property of GMSMapView)

### Parameters
N/A

### Request Example
N/A

### Response
#### Success Response (200)
- **settings** (GMSUISettings) - The GMSUISettings object for configuring map UI interactions.
```

--------------------------------

### GMSServices Configuration and Initialization

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSServices.html?hl=ja

Methods for providing API keys, options, and configuring SDK behavior.

```APIDOC
## +provideAPIKey:

### Description
Provides your API key to the Google Maps SDK for iOS. This must be called exactly once before any iOS Maps SDK object is initialized.

### Method
Class Method

### Parameters
#### Request Body
- **APIKey** (String) - Required - The API key generated via the Google Cloud Platform Console.

### Response
#### Success Response (200)
- **result** (Bool) - Returns YES if the APIKey was successfully provided.

---

## +provideAPIOptions:

### Description
Provides API options to the Google Maps SDK for iOS. Must be called exactly once before any iOS Maps SDK object is initialized.

### Method
Class Method

### Parameters
#### Request Body
- **APIOptions** (Array<String>) - Required - An array containing an NSString for each option.

### Response
#### Success Response (200)
- **result** (Bool) - Returns YES if all the APIOptions were successfully provided.

---

## +setAbnormalTerminationReportingEnabled:

### Description
Enables or disables reporting of abnormal SDK terminations. Must be set from the main thread before the services instance is initialized.

### Method
Class Method

### Parameters
#### Request Body
- **enabled** (Bool) - Required - YES to enable reporting, NO to disable.
```

--------------------------------

### Settings

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapView.html?hl=ko

Gets the GMSUISettings object, which controls user interface settings for the map.

```APIDOC
## settings

### Description
Gets the GMSUISettings object, which controls user interface settings for the map.

### Method
GET

### Endpoint
N/A (Property)

### Parameters
N/A

### Response
#### Success Response (200)
- **settings** (GMSUISettings) - The GMSUISettings object for controlling map UI interactions.
```

--------------------------------

### GMSMapView Initialization Methods

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapView.html

Methods for initializing a GMSMapView instance.

```APIDOC
### Initialization Methods

#### -init
Initializes a new instance of `GMSMapView` with default settings.

#### -initWithOptions:
Initializes a new instance of `GMSMapView` with specified options.

#### -initWithFrame:
Initializes a new instance of `GMSMapView` with a specified frame.

#### -initWithCoder:
Initializes a new instance of `GMSMapView` from a decoder.

#### +mapWithFrame:camera:
Creates and returns a `GMSMapView` with the specified frame and camera position.

#### +mapWithFrame:mapID:camera:
Creates and returns a `GMSMapView` with the specified frame, map ID, and camera position.

#### -initWithFrame:camera:
Initializes a new instance of `GMSMapView` with the specified frame and camera position.

#### -initWithFrame:mapID:camera:
Initializes a new instance of `GMSMapView` with the specified frame, map ID, and camera position.
```

--------------------------------

### Settings

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapView.html?hl=id

Gets the GMSUISettings object, which controls user interface settings for the map.

```APIDOC
## settings

### Description
Gets the `GMSUISettings` object, which controls user interface settings for the map.

### Method
GET

### Endpoint
N/A (Property of GMSMapView)

### Parameters
None

### Request Example
None

### Response
#### Success Response (200)
- **settings** (GMSUISettings) - The GMSUISettings object for configuring map interactions.

#### Response Example
```swift
let uiSettings = mapView.settings
// Example: Disable zoom controls
uiSettings.zoomGestures = false
```
```

--------------------------------

### Settings

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapView.html?hl=de

Gets the GMSUISettings object, which controls user interface settings for the map.

```APIDOC
## settings

### Description
Gets the `GMSUISettings` object, which controls user interface settings for the map.

### Declaration
Swift
```swift
var settings: GMSUISettings { get }
```

Objective-C
```objc
@property (nonatomic, readonly) GMSUISettings *_Nonnull settings;
```
```

--------------------------------

### Initialize panorama with source

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSPanoramaView.html?hl=es

Creates a GMSPanoramaView instance with a specified GMSPanoramaSource. This API is experimental.

```Swift
class func panorama(withFrame frame: CGRect, nearCoordinate coordinate: CLLocationCoordinate2D, source: GMSPanoramaSource) -> Self
```

```Objective-C
+ (nonnull instancetype)panoramaWithFrame:(CGRect)frame
                           nearCoordinate:(CLLocationCoordinate2D)coordinate
                                   source:(GMSPanoramaSource)source;
```

--------------------------------

### Settings

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapView?hl=es-419

Gets the GMSUISettings object, which controls user interface settings for the map.

```APIDOC
## settings

### Description
Gets the `GMSUISettings` object, which controls user interface settings for the map.

### Declaration
Swift
```
var settings: GMSUISettings { get }
```

Objective-C
```
@property (nonatomic, readonly) GMSUISettings *_Nonnull settings;
```
```

--------------------------------

### Initialize GMSMapView with frame and camera (Deprecated)

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Classes/GMSMapView.html?hl=zh-cn

Deprecated initializer. Use init or initWithOptions: instead.

```Objective-C
- (instancetype)initWithFrame:(CGRect)frame
    __GMS_AVAILABLE_BUT_DEPRECATED_MSG("Use -init or -initWithOptions: instead.");
```

--------------------------------

### Handle start of rendering

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Protocols/GMSPanoramaViewDelegate?hl=ar

Triggered when panorama tiles are requested and loading begins.

```Swift
optional func panoramaViewDidStartRendering(_ panoramaView: GMSPanoramaView)
```

```Objective-C
- (void)panoramaViewDidStartRendering:(nonnull GMSPanoramaView *)panoramaView;
```

--------------------------------

### Initialize Map View and Camera

Source: https://developers.google.com/maps/documentation/ios-sdk/examples/draw-polygons?hl=ru

Sets up the GMSMapView with a specified camera position and assigns the view controller as the map view's delegate.

```objc
#import "GoogleMapsDemos/Samples/PolygonsViewController.h"

#import <GoogleMaps/GoogleMaps.h>

@interface PolygonsViewController () 

@property(nonatomic) GMSPolygon *polygonOfNewYork;
@property(nonatomic) GMSPolygon *polygonOfNorthCarolina;

@end

@implementation PolygonsViewController

- (void)viewDidLoad {
  [super viewDidLoad];
  GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:39.13006
                                                          longitude:-77.508545
                                                               zoom:4];
  GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];
  mapView.delegate = self;  // needed for didTapOverlay delegate method

  self.view = mapView;
}
```

--------------------------------

### GMSGeometryOffset

Source: https://developers.google.com/maps/documentation/ios-sdk/reference/objc/Functions?hl=pt-br

Calculates the destination coordinate given a starting point, heading, and distance.

```APIDOC
## GMSGeometryOffset

### Description
Returns the destination coordinate, when starting at `from` with initial `heading`, travelling `distance` meters along a great circle arc, on Earth. The resulting longitude is in the range [-180, 180).

### Method
`func GMSGeometryOffset(_ from: CLLocationCoordinate2D, _ heading: CLLocationDirection, _ distance: CLLocationDistance) -> CLLocationCoordinate2D` (Swift)
`CLLocationCoordinate2D GMSGeometryOffset(CLLocationCoordinate2D from, CLLocationDirection heading, CLLocationDistance distance)` (Objective-C)

### Parameters
- **from** (CLLocationCoordinate2D) - The starting coordinate.
- **heading** (CLLocationDirection) - The initial heading in degrees.
- **distance** (CLLocationDistance) - The distance to travel in meters.
```

--------------------------------

### Initialize Map and Places in Objective-C

Source: https://developers.google.com/maps/documentation/ios-sdk/current-place-tutorial?hl=he

Setup of GMSMapView and GMSPlacesClient within a UIViewController, including location manager configuration.

```objective-c
#import "MapViewController.h"
#import "PlacesViewController.h"
@import CoreLocation;
@import GooglePlaces;
@import GoogleMaps;

@interface MapViewController () <CLLocationManagerDelegate>

@end

@implementation MapViewController {
  CLLocationManager *locationManager;
  CLLocation * _Nullable currentLocation;
  GMSMapView *mapView;
  GMSPlacesClient *placesClient;
  float preciseLocationZoomLevel;
  float approximateLocationZoomLevel;

  // An array to hold the list of likely places.
  NSMutableArray<GMSPlace *> *likelyPlaces;

  // The currently selected place.
  GMSPlace * _Nullable selectedPlace;
}

- (void)viewDidLoad {
  [super viewDidLoad];
  preciseLocationZoomLevel = 15.0;
  approximateLocationZoomLevel = 15.0;

  // Initialize the location manager.
  locationManager = [[CLLocationManager alloc] init];
  locationManager.desiredAccuracy = kCLLocationAccuracyBest;
  [locationManager requestWhenInUseAuthorization];
  locationManager.distanceFilter = 50;
  [locationManager startUpdatingLocation];
  locationManager.delegate = self;

  placesClient = [GMSPlacesClient sharedClient];

  // A default location to use when location permission is not granted.
  CLLocationCoordinate2D defaultLocation = CLLocationCoordinate2DMake(-33.869405, 151.199);

  // Create a map.
  float zoomLevel = locationManager.accuracyAuthorization == CLAccuracyAuthorizationFullAccuracy ? preciseLocationZoomLevel : approximateLocationZoomLevel;
  GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:defaultLocation.latitude
                                                          longitude:defaultLocation.longitude
                                                               zoom:zoomLevel];
  mapView = [GMSMapView mapWithFrame:self.view.bounds camera:camera];
  mapView.settings.myLocationButton = YES;
  mapView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
  mapView.myLocationEnabled = YES;

  // Add the map to the view, hide it until we've got a location update.
  [self.view addSubview:mapView];
  mapView.hidden = YES;

  [self listLikelyPlaces];
}

// Populate the array with the list of likely places.
- (void) listLikelyPlaces
{
  // Clean up from previous sessions.
  likelyPlaces = [NSMutableArray array];

  GMSPlaceField placeFields = GMSPlaceFieldName | GMSPlaceFieldCoordinate;
  [placesClient findPlaceLikelihoodsFromCurrentLocationWithPlaceFields:placeFields callback:^(NSArray<GMSPlaceLikelihood *> * _Nullable likelihoods, NSError * _Nullable error) {
    if (error != nil) {
      // TODO: Handle the error.
      NSLog(@"Current Place error: %@", error.localizedDescription);
      return;
    }

    if (likelihoods == nil) {
      NSLog(@"No places found.");
      return;
    }

    for (GMSPlaceLikelihood *likelihood in likelihoods) {
      GMSPlace *place = likelihood.place;
      [likelyPlaces addObject:place];
    }
  }];
}

// Update the map once the user has made their selection.
- (void) unwindToMain:(UIStoryboardSegue *)segue
{
  // Clear the map.
  [mapView clear];

  // Add a marker to the map.
  if (selectedPlace != nil) {
    GMSMarker *marker = [GMSMarker markerWithPosition:selectedPlace.coordinate];
    marker.title = selectedPlace.name;
    marker.snippet = selectedPlace.formattedAddress;
    marker.map = mapView;
  }

  [self listLikelyPlaces];
}

// Prepare the segue.
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
  if ([segue.identifier isEqualToString:@"segueToSelect"]) {
    if ([segue.destinationViewController isKindOfClass:[PlacesViewController class]]) {
      PlacesViewController *placesViewController = (PlacesViewController *)segue.destinationViewController;
      placesViewController.likelyPlaces = likelyPlaces;
    }
  }
}

// Delegates to handle events for the location manager.
#pragma mark - CLLocationManagerDelegate

// Handle incoming location events.
- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations
{
  CLLocation *location = locations.lastObject;
  NSLog(@"Location: %@", location);

  float zoomLevel = locationManager.accuracyAuthorization == CLAccuracyAuthorizationFullAccuracy ? preciseLocationZoomLevel : approximateLocationZoomLevel;
```