Call Swift code in objective

Original blog, reproduced please indicate the source

Http://blog.csdn.net/hello_hwc

The steps are relatively simple:

1, in Objective C project, create a new file (command+n), select the Swift file

2, choose Create Bridge-header, will generate two files, one is Bridge-header (this is temporarily useless, this file is used to expose the interface of objective C to Swift), a swift file

3, in Swift to expose to Objective C class or method before adding the @objc keyword (@objc keyword is a function of exposing the swift interface to objective C)

4. In the file that you want to use Swift, include the header file #import <ProjectName-swift.h>. Note that the projectname here is the name of your project, which is created automatically and is hidden, no need to pay attention to where the file is, just use it

5. The SWIFT code can then be invoked.

Call Swift code in objective