Indicates whether the receiver is tracking work that can be paused.
- iOS 7.0+
- macOS 10.9+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
NSProgress objects are not pausable.
You typically use this property to communicate whether controls for pausing should appear in a progress reporting user interface.
NSProgress itself does not do anything with this property other than help pass the value from progress reporters to progress observers.
NSProgress is pausable, you should implement the ability to pause either by setting a block for the
pausing property, or by polling the
is property periodically while performing the relevant work.
It is valid for the value of this property to change during the lifetime of an
NSProgress object. By default,
NSProgress is KVO-compliant for this property, sending notifications on the same thread that updates the property.