Do you think that it is easier fighting against a lion or against 20 kittens? Here, we have the same problem. Changing a small application such as this one is not difficult; however, changing a huge application may be very complicated. However, what if we divided the application into small chunks?
One good starting point is changing parts of your application and making it work with ReactiveCocoa, and a good way to do this is creating a framework. It is also a good idea to create this framework to reuse your code for future developments.
Note
As Swift doesn't support static libraries, this option mustn't be provided when using ReactiveCocoa.
Set a new target for your project, but this time pay attention as you have to select the Framework & Library section, and select the Cocoa Touch Framework option as it is demonstrated in the following screenshot:
When the dialog that requests data for this framework appears, you have to set a few details. Call this framework...