Apple samples: Dispose resources

# Conflicts:
#	samples/LibVLCSharp.iOS.Sample/ViewController.cs

samples/LibVLCSharp.Mac.Sample/ViewController.cs

@@ -31,7 +31,9 @@ namespace LibVLCSharp.Mac.Sample
 
             View = _videoView;
 
-            _videoView.MediaPlayer.Play(new Media(_libVLC, new Uri("https://download.blender.org/peach/bigbuckbunny_movies/BigBuckBunny_320x180.mp4")));
+            var media = new Media(_libVLC, new Uri("https://download.blender.org/peach/bigbuckbunny_movies/BigBuckBunny_320x180.mp4"));
+            _videoView.MediaPlayer.Play(media);
+            media.Dispose();
         }
 
         public override NSObject RepresentedObject
@@ -46,5 +48,13 @@ namespace LibVLCSharp.Mac.Sample
                 // Update the view, if already loaded.
             }
         }
-   }
+
+        public override void ViewWillDisappear()
+        {
+            base.ViewWillDisappear();
+
+            _mediaPlayer.Dispose();
+            _libVLC.Dispose();
+        }
+    }
 }
\ No newline at end of file

samples/LibVLCSharp.iOS.Sample/LibVLCSharp.iOS.Sample.csproj

@@ -24,6 +24,7 @@
     <MtouchArch>x86_64</MtouchArch>
     <MtouchLink>None</MtouchLink>
     <MtouchDebug>true</MtouchDebug>
+    <LangVersion>8.0</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhoneSimulator' ">
     <DebugType>none</DebugType>
@@ -34,6 +35,7 @@
     <MtouchLink>None</MtouchLink>
     <MtouchArch>x86_64</MtouchArch>
     <ConsolePause>false</ConsolePause>
+    <LangVersion>8.0</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhone' ">
     <DebugSymbols>true</DebugSymbols>
@@ -48,6 +50,7 @@
     <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
     <CodesignKey>iPhone Developer</CodesignKey>
     <MtouchDebug>true</MtouchDebug>
+    <LangVersion>8.0</LangVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhone' ">
     <DebugType>none</DebugType>
@@ -59,6 +62,7 @@
     <MtouchArch>ARM64</MtouchArch>
     <ConsolePause>false</ConsolePause>
     <CodesignKey>iPhone Developer</CodesignKey>
+    <LangVersion>8.0</LangVersion>
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="Main.cs" />

samples/LibVLCSharp.iOS.Sample/ViewController.cs

 using LibVLCSharp.Platforms.iOS;
 using LibVLCSharp;
-
+using System;
 using UIKit;
 
 namespace LibVLCSharp.iOS.Sample
@@ -22,7 +22,16 @@ namespace LibVLCSharp.iOS.Sample
 
             View = _videoView;
 
-            _videoView.MediaPlayer.Play(new Media(_libVLC, new Uri("http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4")));
+            using var media = new Media(_libVLC, new Uri("http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4"));
+            _videoView.MediaPlayer.Play(media);
+        }
+
+        public override void ViewWillDisappear(bool animated)
+        {
+            base.ViewWillDisappear(animated);
+
+            _mediaPlayer.Dispose();
+            _libVLC.Dispose();
         }
     }
 }

samples/LibVLCSharp.tvOS.Sample/ViewController.cs

@@ -21,7 +21,19 @@ namespace LibVLCSharp.tvOS.Sample
 
             View = _videoView;
 
-            _videoView.MediaPlayer.Play(new Media(_libVLC, new Uri("http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4")));
+            var media = new Media(_libVLC, new Uri("http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4"));
+
+            _videoView.MediaPlayer.Play(media);
+
+            media.Dispose();
+        }
+
+        public override void ViewWillDisappear(bool animated)
+        {
+            base.ViewWillDisappear(animated);
+
+            _mediaPlayer.Dispose();
+            _libVLC.Dispose();
         }
     }
 }