Creates a data object containing the data from the location specified by a given URL.
UIKit for Mac 13.0+Beta
The URL from which to read data.
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, use inputStreamWithURL: to open a stream, then read the file incrementally.
This method may fail and return nil for various reasons, like bad URLs and file-not-found errors. If you want to handle these errors, use dataWithContentsOfURL:options:error: instead.
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.