Global Variable

NSURLErrorBackgroundTaskCancelledReasonKey

A key in the error dictionary that provides the reason for canceling a background task.

Declaration

let NSURLErrorBackgroundTaskCancelledReasonKey: String

Discussion

The value associated with this key is an NSNumber. For a list of possible values, see URL Session Background Task Cancellation Reasons.

See Also

Keys

let NSURLErrorFailingURLErrorKey: String

The URL which caused a load to fail.

let NSURLErrorFailingURLPeerTrustErrorKey: String

The state of a failed SSL handshake.

let NSURLErrorFailingURLStringErrorKey: String

The URL which caused a load to fail.

URL Session Background Task Cancellation Reasons

Reasons that indicate why the system canceled a background task.

let NSURLErrorNetworkUnavailableReasonKey: String

The reason the network was unavailable for a task.

enum URLError.NetworkUnavailableReason

An enumeration of reasons explaining why a task couldn’t satisfy networking constraints.