A Boolean value indicating whether proximity monitoring is enabled (
true) or not (
- iOS 3.0+
- tvOS 9.0+
Enable proximity monitoring only when your application needs to be notified of changes to the proximity state. Otherwise, disable proximity monitoring. The default value is
Not all iOS devices have proximity sensors. To determine if proximity monitoring is available, attempt to enable it. If the value of the
is property remains
false, proximity monitoring is not available.