Instance Property

alpha

The amount of transparency to apply to the overlay.

Declaration

@property(atomic) CGFloat alpha;

Discussion

The value in this property can be in the range 0.0 to 1.0, where 0.0 represents total transparency and 1.0 represents total opacity. The default value of this property is 1.0.

See Also

Attributes of the Overlay

overlay

The overlay object containing the data for drawing.

contentScaleFactor

The scale factor used to draw the overlay’s content.