Creates a download task that retrieves the contents of the specified URL and saves the results to a file.
- iOS 7.0+
- macOS 10.9+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
The new session download task.
After you create the task, you must start it by calling its
Adding Download Tasks to a Session
Creates a download task that retrieves the contents of a URL based on the specified URL request object and saves the results to a file.
A protocol defining methods that URL session instances call on their delegates to handle task-level events specific to download tasks.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.Learn more about using Apple's beta software