The layer’s position on the z axis. Animatable.
- iOS 2.0+
- macOS 10.5+
- UIKit for Mac 13.0+Beta
- tvOS 9.0+
The default value of this property is
0. Changing the value of this property changes the front-to-back ordering of layers onscreen. Higher values place this layer visually closer to the viewer than layers with lower values. This can affect the visibility of layers whose frame rectangles overlap.
The value of this property is measured in points. The range of this property is single-precision, floating-point
Modifying the Layer Geometry
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.Learn more about using Apple's beta software