Tells the delegate if Picture in Picture failed to start.
- iOS 9.0+
- macOS 10.15+
- Mac Catalyst 13.0+
The Picture in Picture controller to which you’ve assigned the delegate.
An error describing why Picture in Picture failed to start.
A delegate can implement this method to be notified when Picture in Picture failed to start. You can examine the
error argument to determine the cause of the failure.