From ee4e108e4fb6dd6173430294ca93a37f7e82ad94 Mon Sep 17 00:00:00 2001
From: Koen J <koen@disper.io>
Date: Mon, 2 Sep 2024 17:57:51 +0200
Subject: [PATCH] Acquiring and releasing multicast lock.

---
 app/src/main/AndroidManifest.xml                       |  1 +
 .../com/futo/platformplayer/activities/MainActivity.kt | 10 +++++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 05675554..81a29817 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -5,6 +5,7 @@
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="32" tools:ignore="ScopedStorage" />
diff --git a/app/src/main/java/com/futo/platformplayer/activities/MainActivity.kt b/app/src/main/java/com/futo/platformplayer/activities/MainActivity.kt
index b2af4023..8b5fa562 100644
--- a/app/src/main/java/com/futo/platformplayer/activities/MainActivity.kt
+++ b/app/src/main/java/com/futo/platformplayer/activities/MainActivity.kt
@@ -7,6 +7,7 @@ import android.content.Intent.FLAG_ACTIVITY_NEW_TASK
 import android.content.pm.PackageManager
 import android.content.res.Configuration
 import android.net.Uri
+import android.net.wifi.WifiManager
 import android.os.Bundle
 import android.os.StrictMode
 import android.os.StrictMode.VmPolicy
@@ -111,6 +112,7 @@ class MainActivity : AppCompatActivity, IWithResultLauncher {
 
     private lateinit var _overlayContainer: FrameLayout;
     private lateinit var _toastView: ToastView;
+    private lateinit var _multicastLock: WifiManager.MulticastLock
 
     //Segment Containers
     private lateinit var _fragContainerTopBar: FragmentContainerView;
@@ -245,6 +247,12 @@ class MainActivity : AppCompatActivity, IWithResultLauncher {
     }
 
     override fun onCreate(savedInstanceState: Bundle?) {
+        Logger.i(TAG, "Acquiring multicast lock")
+        val wifiManager = applicationContext.getSystemService(WIFI_SERVICE) as WifiManager
+        _multicastLock = wifiManager.createMulticastLock("mdnsLock")
+        _multicastLock.setReferenceCounted(true)
+        _multicastLock.acquire()
+
         Logger.i(TAG, "MainActivity Starting");
         StateApp.instance.setGlobalContext(this, lifecycleScope);
         StateApp.instance.mainAppStarting(this);
@@ -514,7 +522,6 @@ class MainActivity : AppCompatActivity, IWithResultLauncher {
         }
     }
 
-
     /*
     override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
         super.onRequestPermissionsResult(requestCode, permissions, grantResults);
@@ -970,6 +977,7 @@ class MainActivity : AppCompatActivity, IWithResultLauncher {
     override fun onDestroy() {
         super.onDestroy();
         Logger.v(TAG, "onDestroy")
+        _multicastLock.release()
         StateApp.instance.mainAppDestroyed(this);
     }