Basic Integration of Fuel into a swift app.
Changes to the propellerSDK.a - in the build settings for propellerSDK lib set the build setting "Defines Modules" to yes.
In the swift project you will need a way for the swift to talk to the objective C. You need to create a bridge header file. You need to do this one time. Add a new obj-C file to a swift project and xcode will ask you and create the bridge header for you. You can then import the propellerSDK.h file here.