MGLForegroundStyleLayer
@interface MGLForegroundStyleLayer : MGLStyleLayer
MGLForegroundStyleLayer
is an abstract superclass for style layers whose
content is defined by an MGLSource
object.
Do not create instances of this class directly, and do not create your own
subclasses of this class. Instead, create instances of MGLRasterStyleLayer
and the concrete subclasses of MGLVectorStyleLayer
.
-
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 }