Tells the delegate the central manager failed to create a connection with a peripheral.
- iOS 5.0+
- macOS 10.7+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 4.0+
- Core Bluetooth
The central manager that provides this information.
The peripheral that failed to connect.
The cause of the failure, or
nilif no error occurred.
The manager invokes this method when a connection initiated with the
connect method fails to complete. Because connection attempts don’t time out, a failed connection usually indicates a transient issue, in which case you may attempt connecting to the peripheral again.