MGLForegroundStyleLayer
@interface MGLForegroundStyleLayer : MGLStyleLayer
MGLForegroundStyleLayer
is an abstract superclass for style layers whose
content is defined by an MGLSource
object.
Create instances of MGLRasterStyleLayer
, MGLHillshadeStyleLayer
, and the
concrete subclasses of MGLVectorStyleLayer
in order to use
MGLForegroundStyleLayer
‘s methods. Do not create instances of
MGLForegroundStyleLayer
directly, and do not create your own subclasses of
this class.
-
Identifier of the source from which the receiver obtains the data to style.
Declaration
Objective-C
@property (readonly, nonatomic, nullable) NSString *sourceIdentifier;
Swift
var sourceIdentifier: String? { get }