The amount of transparency to apply to the overlay.
SDKs
- iOS 7.0+
- macOS 10.9+
- Mac Catalyst 13.0+
- tvOS 9.2+
Framework
- Map
Kit
Declaration
@property(atomic) CGFloat alpha;
Discussion
The value in this property can be in the range 0
to 1
, where 0
represents total transparency and 1
represents total opacity. The default value of this property is 1
.