Using Swift with Salesforce Mobile SDK

To create Mobile SDK Swift projects, you can assemble the pieces manually, or you can use the forceios create command. With forceios, specify native_swift as the application type, or simply press Return. For example:

For manual app creation steps, see Creating an iOS Swift Project Manually.

In Mobile SDK, Swift methods and classes closely follow the related Objective-C API signatures. However, to facilitate calling Objective-C APIs, Mobile SDK defines Swift-friendly names for most methods and parameters. When Mobile SDK defines a custom Swift name, it appears in the Objective-C header file with the tag NS_SWIFT_NAME immediately following the Objective-C method declaration. Here’s an example method declaration:

With class and protocol names, the declaration comes before the class declaration:

If an Objective-C API is not available in Swift, you’ll see the tag NS_SWIFT_UNAVAILABLE("") next to the API declaration.

Most Swift class names are simply the Objective-C name without the “SF” prefix, but there are some refinements as well. For example, SFRestAPI equates to RestClient in Swift. Here are some noteworthy examples.