I want to integrate flurry in ios using swift language. I added the flurry sdk\'s two files : flurrylib.a and flurry.h and then entered my api key in project TestProject4-Br
You need to add a bridging header to your project. In that bridging header you import what you need in Swift and then you don't need to import it anywhere else. The iBook on using Swift and Obj-C alongside has a very good explanation on this.
Actually, there is an explanation on Apple's Swift blog that says:
To be safe, all components of your app should be built with the same version of Xcode and the Swift compiler to ensure that they work together.
You can find more information here.