SDKs
- iOS 8.0+
- macOS 10.10+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
Framework
- Foundation
Declaration
NSQualityOfServiceDefault = -1
Discussion
Indicates no explicit quality of service information. Whenever possible, an appropriate quality of service is determined from available sources. Otherwise, some quality of service level between NSQuality and NSQuality is used.