快速建立关系数据库(sqlite)的步骤。

I am working on an iOS app and I want to set up a relational database for it. I read that SQLite is a good database to use. I'm making the app in Swift. I've looked at several tutorials but it seems like all the ones that I found have the DBManager class or libraries in objective-c. Therefore, I would need a wrapper for the db class. I'm not really sure how the wrapper works and how I would be calling objective-c methods using swift syntax. I am working on an iOS app and I want to set up