GoogleMaps Framework Reference

AI-generated Key Takeaways

• GMSURLTileLayer fetches map tiles using URLs provided by a GMSTileURLConstructor.

• You can customize the user agent for HTTP requests made by the tile layer.

• It's easily initialized using a convenience constructor that takes a GMSTileURLConstructor to define how tile URLs are generated.

• GMSURLTileProvider cannot be subclassed and should only be created using its designated constructor.

GMSURLTileLayer

@interface GMSURLTileLayer : GMSTileLayer

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.

• +tileLayerWithURLConstructor:

  Convenience constructor. constructor must be non-nil.

  Declaration

  Swift

  convenience init(urlConstructor constructor: @escaping GMSTileURLConstructor)

  Objective-C

  + (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

  var userAgent: String? { get set }

  Objective-C

  @property (nonatomic, copy, nullable) NSString *userAgent;