Initializes a data object with the data from the location specified by a given URL.
UIKit for Mac 13.0+Beta
The URL from which to read data.
A mask that specifies options for reading the data. Constant components are described in NSDataReadingOptions.
If there is an error reading in the data, upon return contains an error object that describes the problem.
Use this method to convert data:// URLs to NSData objects. You can also use it to read short files synchronously. If you need to read potentially large files, initialize an NSInputStream with inputStreamWithURL:, then read the file incrementally.
Creates a data object from the mapped file at a given path.
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.