A Boolean value that determines whether a dual camera device delivers images from both cameras.
- iOS 11.0+
- UIKit for Mac 13.0+Beta
When this property is
false (the default), and the photo output is configured with a capture device of the
built type, the photo output delivers a single main photo image for each capture. (The device determines how to produce that image from one or both cameras).
If you change this setting to
true, your delegate’s
photo method fires at least twice for each main image—once for the telephoto image and again for the wide-angle image. Setting this property to true when not using a dual-camera device raises an exception.