From df01d4b78818e4d57f860c366c7238301cdab8c7 Mon Sep 17 00:00:00 2001
From: gbattistel <guillermo@telnyx.com>
Date: Mon, 9 Dec 2024 16:54:15 -0300
Subject: [PATCH] feat: sync mute button state in CallView with call state when
 app enters foreground

---
 TelnyxWebRTCDemo/ViewController.swift | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/TelnyxWebRTCDemo/ViewController.swift b/TelnyxWebRTCDemo/ViewController.swift
index 3664f722..b7f764cb 100644
--- a/TelnyxWebRTCDemo/ViewController.swift
+++ b/TelnyxWebRTCDemo/ViewController.swift
@@ -76,6 +76,15 @@ class ViewController: UIViewController {
         self.telnyxClient = appDelegate.telnyxClient
         self.initViews()
         
+        // Register notifications
+        NotificationCenter.default.addObserver(self,
+                                               selector: #selector(appWillEnterForeground),
+                                               name: UIApplication.willEnterForegroundNotification,
+                                               object: nil)
+    }
+    
+    deinit {
+        NotificationCenter.default.removeObserver(self)
     }
 
     func initViews() {
@@ -132,6 +141,11 @@ class ViewController: UIViewController {
             self.showHiddenOptions()
         }
     }
+    
+    @objc func appWillEnterForeground() {
+        print("ViewController:: App is about to enter the foreground")
+        self.callView.isMuted = self.appDelegate.currentCall?.isMuted ?? false
+    }
 
     func showHiddenOptions() {
         let alert = UIAlertController(title: "Options", message: "", preferredStyle: .actionSheet)