save steps on campaign back button press

@@ -35,6 +35,28 @@ var timer2: DispatchSourceTimer?
         }
 
         stopTimer()
+
+        let persistedSteps = swiftApi().getSteps()
+        if (persistedSteps > 0) {
+
+            let currentDateTime = Date()
+            let dateFormatter = DateFormatter()
+            dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
+            let dateString = dateFormatter.string(from: currentDateTime)
+
+            swiftApi().setPacingDetailsAsync(persistedSteps, dateString, setPacingDetailsAsyncCallback)
+        }
+        
+        func setPacingDetailsAsyncCallback (_ responseData: swiftApi.GenericResponseModel?) -> Void {
+            if (responseData != nil) {
+                DispatchQueue.main.async {
+                    if (responseData?.getStatus == 1) {
+                        print("===== steps sent on back button press ====")
+                    }
+                }
+            } else {
+            }
+        }
     }
     
     public override func viewDidLoad() {