From 70af5810898ab883f8e2b655df9611f12f738955 Mon Sep 17 00:00:00 2001
From: zhaoyongqiang <zhaoyongqiang@agora.io>
Date: Fri, 13 Jan 2023 16:12:43 +0800
Subject: [PATCH] keyCenter file import Foundation

---
 .../APIExample-Audio/Common/KeyCenter.swift    |  1 +
 .../APIExample/Common/KeyCenter.swift          |  2 ++
 macOS/APIExample/Common/KeyCenter.swift        | 18 ++++++++++--------
 3 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/iOS/APIExample-Audio/APIExample-Audio/Common/KeyCenter.swift b/iOS/APIExample-Audio/APIExample-Audio/Common/KeyCenter.swift
index 5d7c87040..9049907bb 100644
--- a/iOS/APIExample-Audio/APIExample-Audio/Common/KeyCenter.swift
+++ b/iOS/APIExample-Audio/APIExample-Audio/Common/KeyCenter.swift
@@ -5,6 +5,7 @@
 //  Created by GongYuhua on 6/25/16.
 //  Copyright © 2016 Agora. All rights reserved.
 //
+import Foundation
 
 struct KeyCenter {
     
diff --git a/iOS/APIExample/APIExample/Common/KeyCenter.swift b/iOS/APIExample/APIExample/Common/KeyCenter.swift
index 649e86b6b..2c461d515 100644
--- a/iOS/APIExample/APIExample/Common/KeyCenter.swift
+++ b/iOS/APIExample/APIExample/Common/KeyCenter.swift
@@ -6,6 +6,8 @@
 //  Copyright © 2016 Agora. All rights reserved.
 //
 
+import Foundation
+
 @objc
 class KeyCenter: NSObject {
     
diff --git a/macOS/APIExample/Common/KeyCenter.swift b/macOS/APIExample/Common/KeyCenter.swift
index c49cc8c0d..083933f91 100644
--- a/macOS/APIExample/Common/KeyCenter.swift
+++ b/macOS/APIExample/Common/KeyCenter.swift
@@ -1,11 +1,13 @@
-	//
-	//  KeyCenter.swift
-	//  OpenLive
-	//
-	//  Created by GongYuhua on 6/25/16.
-	//  Copyright © 2016 Agora. All rights reserved.
-	//
-	
+//
+//  KeyCenter.swift
+//  OpenLive
+//
+//  Created by GongYuhua on 6/25/16.
+//  Copyright © 2016 Agora. All rights reserved.
+//
+
+import Foundation
+
 struct KeyCenter {
 	
 	/**