Swiftify: Convert Fade transition from Objective-C to Swift

AnimatedTransitionKit/Classes/Base/AnimatedTransitionKit.h

@@ -37,7 +37,6 @@
 
 #import "DragDropTransitioning.h"
 #import "DragDropTransition.h"
-#import "FadeTransition.h"
 #import "PanningInteractiveTransition.h"
 #import "AnimatedTransitionKitMacro.h"
 

AnimatedTransitionKit/Classes/Transitions/Fade/FadeTransition.h → AnimatedTransitionKit/Classes/Transitions/Fade/FadeTransition.swift

@@ -24,7 +24,7 @@
 //  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 //  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
-//  FadeTransition.h
+//  FadeTransition.swift
 //  AnimatedTransitionKit
 //
 //  Created by Steve Kim on 6/18/16.
@@ -35,8 +35,25 @@
 //      - Refactoring extract methods
 //
 
-#import "AnimatedTransition.h"
+import Foundation
 
-@interface FadeTransition : AnimatedTransition
+public class FadeTransition: AnimatedTransition {
 
-@end
+    // MARK: - Overridden
+
+    override public func transitioningFor(
+        forPresentedController presented: UIViewController?,
+        presenting: UIViewController?,
+        sourceController source: UIViewController?)
+        -> AnimatedTransitioning?
+    {
+        FadeTransitioning()
+    }
+
+    override public func transitioning(
+        forDismissedController dismissed: UIViewController?)
+        -> AnimatedTransitioning?
+    {
+        FadeTransitioning()
+    }
+}