minor fixes

@@ -1001,7 +1001,7 @@
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_KEY_NSHumanReadableCopyright = "";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -1037,7 +1037,7 @@
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_KEY_NSHumanReadableCopyright = "";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 11.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",

@@ -11,9 +11,23 @@ import UIKit
 @objc public class CouponsViewController: UIViewController {
     public override func viewWillAppear(_ animated: Bool) {
         super.viewWillAppear(animated)
-        self.navigationController?.navigationBar.topItem?.title = ""
+//        self.navigationController?.navigationBar.topItem?.title = ""
+//
+//        self.navigationController?.navigationBar.backIndicatorImage = UIImage(contentsOfFile: "ic_back")
+//        self.navigationController?.navigationBar.backIndicatorTransitionMaskImage = UIImage(contentsOfFile: "ic_back")
+        let backButton = UIButton(type: UIButton.ButtonType.custom) as UIButton
+        backButton.frame = CGRect(x: 0, y: 0, width: 40, height: 25)
+        backButton.imageView!.contentMode = .scaleAspectFit
+        backButton.setImage(UIImage(named: "ic_back"), for: .normal)
+        backButton.imageEdgeInsets = UIEdgeInsets(top: 0, left: -20, bottom: 0, right: 0)
+        backButton.addTarget(self, action:  #selector(moveToBack(_:)), for: .touchUpInside)
         
-        self.navigationController?.navigationBar.backIndicatorImage = UIImage(contentsOfFile: "ic_back")
-        self.navigationController?.navigationBar.backIndicatorTransitionMaskImage = UIImage(contentsOfFile: "ic_back")
+        let leftBarButtonItem: UIBarButtonItem = UIBarButtonItem(customView: backButton)
+        self.navigationController?.navigationItem.setLeftBarButton(leftBarButtonItem, animated: false)
+        self.navigationController?.navigationItem.title = ""
+    }
+    
+    @objc func moveToBack(_ sender:UIButton){
+        self.navigationController?.popViewController(animated: true)
     }
 }